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Posted to commits@isis.apache.org by ah...@apache.org on 2021/04/18 14:09:47 UTC

[isis] 01/11: Upgrading boostrap from version 3 to 4 (WIP)

This is an automated email from the ASF dual-hosted git repository.

ahuber pushed a commit to branch 2617_wicketstuff.bs4
in repository https://gitbox.apache.org/repos/asf/isis.git

commit 6bd59e475eaaa22bf81ef635461d2e2071d6df1d
Author: mwhesse <mw...@gmail.com>
AuthorDate: Sat Apr 17 16:13:58 2021 +0700

    Upgrading boostrap from version 3 to 4 (WIP)
---
 .../applib/layout/grid/bootstrap3/SizeSpan.java    |     7 +-
 .../applib/layout/grid/bootstrap3/BS3ColTest.java  |     2 +-
 .../layout/grid/bootstrap3/SizeSpanTest.java       |     2 +-
 core/pom.xml                                       |    10 +-
 .../java/demoapp/webapp/wicket/DemoAppWicket.java  |     3 +-
 viewers/wicket/ui/pom.xml                          |     6 +
 .../AdditionalLinksAsDropDownPanel.html            |     2 +-
 .../AdditionalLinksAsListInlinePanel.html          |     4 +-
 .../serviceactions/ServiceActionsPanel.css         |     6 +-
 .../serviceactions/ServiceActionsPanel.html        |     4 +-
 .../serviceactions/ServiceActionsPanel.java        |     6 +-
 .../actions/ActionParametersFormPanel.html         |     2 +-
 .../components/actions/ActionParametersPanel.html  |     2 +-
 .../bookmarkedpages/BookmarkedPagesPanel.html      |    14 +-
 .../CollectionContentsAsAjaxTablePanel.html        |     2 +-
 .../summary/CollectionContentsAsSummary.html       |     4 +-
 .../entity/collection/EntityCollectionPanel.html   |    10 +-
 .../components/entity/fieldset/PropertyGroup.html  |    14 +-
 .../wicket/ui/components/header/HeaderPanel.html   |    12 +-
 .../components/property/PropertyEditFormPanel.html |     2 +-
 .../ui/components/property/PropertyEditPanel.html  |     2 +-
 .../ui/components/scalars/ScalarPanelAbstract.java |     2 +-
 .../scalars/ScalarPanelTextFieldAbstract.html      |    12 +-
 .../components/scalars/XEditableBehaviorWkt.java   |    86 -
 .../blobclob/IsisBlobOrClobPanelAbstract.html      |     6 +-
 .../scalars/datepicker/DateTimeConfig.java         |    18 +-
 .../datepicker/TextFieldWithDateTimePicker.java    |    13 +-
 .../datepicker/css/bootstrap-datetimepicker.css    |   341 -
 .../css/bootstrap-datetimepicker.min.css           |     5 -
 .../components/scalars/datepicker/css/fa-patch.css |     4 +
 .../datepicker/css/tempusdominus-bootstrap-4.css   |   332 +
 .../css/tempusdominus-bootstrap-4.min.css          |     5 +
 .../datepicker/js/bootstrap-datetimepicker.js      |  1703 --
 .../datepicker/js/bootstrap-datetimepicker.min.js  |     1 -
 .../scalars/datepicker/js/moment-with-locales.js   | 18083 +++++++++++++++++++
 .../datepicker/js/moment-with-locales.min.js       |     2 +
 .../ui/components/scalars/datepicker/js/moment.js  |  3046 ----
 .../components/scalars/datepicker/js/moment.min.js |     7 -
 .../datepicker/js/tempusdominus-bootstrap-4.js     |  3505 ++++
 .../datepicker/js/tempusdominus-bootstrap-4.min.js |     6 +
 .../components/scalars/primitive/BooleanPanel.html |     6 +-
 .../primitive/BooleanPanel_labelRightPosition.html |     6 +-
 .../scalars/reference/ReferencePanel.html          |     6 +-
 .../scalars/string/MultiLineStringPanel.java       |     2 +-
 .../valuechoices/ValueChoicesSelect2Panel.html     |     8 +-
 .../StandaloneCollectionPanel.html                 |    10 +-
 .../wicket/ui/components/tree/TreePanel.html       |     6 +-
 .../widgets/themepicker/ThemeChooser.java          |     6 +-
 .../zclip/SimpleClipboardModalWindowPanel.html     |     4 +-
 .../wicket/ui/errors/ExceptionStackTracePanel.html |    14 +-
 .../isis/viewer/wicket/ui/pages/PageAbstract.java  |     7 +-
 .../viewer/wicket/ui/pages/about/AboutPage.html    |     2 +-
 .../accmngt/AccountManagementPageAbstract.html     |     2 +-
 .../password_reset/PasswordResetEmailPanel.html    |     2 +-
 .../accmngt/password_reset/PasswordResetPage.html  |     2 +-
 .../accmngt/password_reset/PasswordResetPanel.html |     4 +-
 .../ui/pages/accmngt/register/RegisterPage.html    |     2 +-
 .../ui/pages/accmngt/register/RegisterPanel.html   |     8 +-
 .../pages/accmngt/signup/RegistrationFormPage.html |     2 +-
 .../accmngt/signup/RegistrationFormPanel.html      |     2 +-
 .../ui/pages/actionprompt/ActionPromptPage.html    |     2 +-
 .../wicket/ui/pages/bootstrap-overrides-all-v1.css |  1078 --
 .../wicket/ui/pages/bootstrap-overrides-all-v2.css |    45 +-
 .../wicket/ui/pages/bootstrap-overrides-darkly.css |     2 +-
 .../isis/viewer/wicket/ui/pages/home/HomePage.html |     2 +-
 .../wicket/ui/pages/login/IsisSignInPanel.html     |     4 +-
 .../wicket/ui/pages/login/WicketSignInPage.html    |     2 +-
 .../wicket/ui/pages/mmverror/MmvErrorPage.html     |     4 +-
 .../viewer/wicket/ui/pages/value/ValuePage.html    |     8 +-
 .../wicket/ui/pages/voidreturn/VoidReturnPage.html |     8 +-
 .../isis/viewer/wicket/ui/util/Decorators.java     |     2 +-
 71 files changed, 22130 insertions(+), 6421 deletions(-)

diff --git a/api/applib/src/main/java/org/apache/isis/applib/layout/grid/bootstrap3/SizeSpan.java b/api/applib/src/main/java/org/apache/isis/applib/layout/grid/bootstrap3/SizeSpan.java
index a24bd28..51098a0 100644
--- a/api/applib/src/main/java/org/apache/isis/applib/layout/grid/bootstrap3/SizeSpan.java
+++ b/api/applib/src/main/java/org/apache/isis/applib/layout/grid/bootstrap3/SizeSpan.java
@@ -96,9 +96,10 @@ public class SizeSpan implements Serializable {
         if(buf.length() > 0) {
             buf.append(" ");
         }
-        buf.append("col-")
-        .append(size.toCssClassFragment())
-        .append("-")
+        buf
+        // .append("col-")
+        // .append(size.toCssClassFragment())
+        // .append("-")
         .append(offset != null && offset ? "offset-": "")
         .append(span);
         return buf;
diff --git a/api/applib/src/test/java/org/apache/isis/applib/layout/grid/bootstrap3/BS3ColTest.java b/api/applib/src/test/java/org/apache/isis/applib/layout/grid/bootstrap3/BS3ColTest.java
index 70a2cc3..ea1eb34 100644
--- a/api/applib/src/test/java/org/apache/isis/applib/layout/grid/bootstrap3/BS3ColTest.java
+++ b/api/applib/src/test/java/org/apache/isis/applib/layout/grid/bootstrap3/BS3ColTest.java
@@ -58,6 +58,6 @@ public class BS3ColTest {
         bs3Col.getSizeSpans().add(SizeSpan.with(Size.MD, 5));
         bs3Col.getSizeSpans().add(SizeSpan.offset(Size.MD, 2));
 
-        assertThat(bs3Col.toCssClass(), is(equalTo("col-sm-6 col-md-5 col-md-offset-2")));
+        assertThat(bs3Col.toCssClass(), is(equalTo("col-sm-6 col-md-5 offset-2")));
     }
 }
\ No newline at end of file
diff --git a/api/applib/src/test/java/org/apache/isis/applib/layout/grid/bootstrap3/SizeSpanTest.java b/api/applib/src/test/java/org/apache/isis/applib/layout/grid/bootstrap3/SizeSpanTest.java
index 6e31379..47c4c02a 100644
--- a/api/applib/src/test/java/org/apache/isis/applib/layout/grid/bootstrap3/SizeSpanTest.java
+++ b/api/applib/src/test/java/org/apache/isis/applib/layout/grid/bootstrap3/SizeSpanTest.java
@@ -55,7 +55,7 @@ public class SizeSpanTest {
 
         final String s = ss.toCssClassFragment();
 
-        assertThat(s, is(equalTo("col-sm-offset-0")));
+        assertThat(s, is(equalTo("offset-0")));
 
     }
 
diff --git a/core/pom.xml b/core/pom.xml
index f046db5..4fc88f8 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -182,7 +182,7 @@
 		<vaadin.version>19.0.4</vaadin.version>
 
 		<wicket.version>8.11.0</wicket.version>
-		<wicket-bootstrap.version>2.0.14</wicket-bootstrap.version> <!-- de.agilecoders.wicket:wicket-bootstrap... -->
+		<wicket-bootstrap.version>3.0.0-M17</wicket-bootstrap.version> <!-- de.agilecoders.wicket:wicket-bootstrap... -->
 		<wicket-bootstrap-datetimepicker.version>4.17.47</wicket-bootstrap-datetimepicker.version>
 		<wicket-fullcalendar.version>4.2</wicket-fullcalendar.version>
 		<wicket-source.version>7.0.0</wicket-source.version>
@@ -562,10 +562,10 @@
 						<jswarn>false</jswarn>
 						<suffix>.min</suffix>
 						<excludes>
-							<exclude>**/moment.js</exclude>
-							<exclude>**/moment.min.js</exclude>
-							<exclude>**/bootstrap-datetimepicker.js</exclude>
-							<exclude>**/bootstrap-datetimepicker.min.js</exclude>
+							<exclude>**/moment-with-locales.js</exclude>
+							<exclude>**/moment-with-locales.min.js</exclude>
+							<exclude>**/tempusdominus-bootstrap-4.js</exclude>
+							<exclude>**/tempusdominus-bootstrap-4.min.js</exclude>
 							<exclude>**/bootstrap-growl.js</exclude>
 							<exclude>**/bootstrap-growl.min.js</exclude>
 						</excludes>
diff --git a/examples/demo/wicket/src/main/java/demoapp/webapp/wicket/DemoAppWicket.java b/examples/demo/wicket/src/main/java/demoapp/webapp/wicket/DemoAppWicket.java
index 9ee5c95..310173f 100644
--- a/examples/demo/wicket/src/main/java/demoapp/webapp/wicket/DemoAppWicket.java
+++ b/examples/demo/wicket/src/main/java/demoapp/webapp/wicket/DemoAppWicket.java
@@ -24,6 +24,7 @@ import org.springframework.boot.web.servlet.support.SpringBootServletInitializer
 import org.springframework.context.annotation.Import;
 
 import org.apache.isis.commons.internal.debug.xray.XrayEnable;
+import org.apache.isis.core.config.presets.IsisPresets;
 import org.apache.isis.extensions.viewer.wicket.pdfjs.ui.IsisModuleExtPdfjsUi;
 import org.apache.isis.valuetypes.asciidoc.metamodel.IsisModuleValAsciidocMetaModel;
 import org.apache.isis.valuetypes.asciidoc.persistence.jdo.dn5.IsisModuleValAsciidocPersistenceJdoDn5;
@@ -72,7 +73,7 @@ public class DemoAppWicket extends SpringBootServletInitializer {
      * entry point by searching for classes having a {@code main(...)}
      */
     public static void main(String[] args) {
-        //IsisPresets.prototyping();
+    	IsisPresets.prototyping();
         
         //IsisPresets.logging(WebRequestCycleForIsis.class, "debug");
 
diff --git a/viewers/wicket/ui/pom.xml b/viewers/wicket/ui/pom.xml
index 207e935..c63332f 100644
--- a/viewers/wicket/ui/pom.xml
+++ b/viewers/wicket/ui/pom.xml
@@ -161,6 +161,12 @@
         <dependency>
             <groupId>org.webjars</groupId>
             <artifactId>select2</artifactId>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.webjars</groupId>
+                    <artifactId>jquery</artifactId>
+                </exclusion>
+            </exclusions>
         </dependency>
 
         <dependency>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/entityactions/AdditionalLinksAsDropDownPanel.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/entityactions/AdditionalLinksAsDropDownPanel.html
index 692d158..96f82f4 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/entityactions/AdditionalLinksAsDropDownPanel.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/entityactions/AdditionalLinksAsDropDownPanel.html
@@ -26,7 +26,7 @@
         <wicket:panel>
             <div wicket:id="additionalLinkList" class="additionalLinkList additionalLinkListDropDown">
                 <div class="btn-group">
-                    <button type="button" class="btn btn-default btn-sm dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
+                    <button type="button" class="btn btn-secondary btn-sm dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
                         <span class="fa fa-ellipsis-v"></span>
                     </button>
                     <ul class="dropdown-menu dropdown-menu-right" role="menu">
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/entityactions/AdditionalLinksAsListInlinePanel.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/entityactions/AdditionalLinksAsListInlinePanel.html
index 7cc41f1..100cd4f 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/entityactions/AdditionalLinksAsListInlinePanel.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/entityactions/AdditionalLinksAsListInlinePanel.html
@@ -25,8 +25,8 @@
     <body>
         <wicket:panel>
             <ul wicket:id="additionalLinkList" class="additionalLinkList additionalLinkListInline list-unstyled list-inline">
-                <li wicket:id="additionalLinkItem" class="additionalLinkItem">
-                    <a href="#" wicket:id="additionalLink" class="btn btn-sm btn-default">
+                <li wicket:id="additionalLinkItem" class="additionalLinkItem list-inline-item">
+                    <a href="#" wicket:id="additionalLink" class="btn btn-sm btn-secondary">
                         <span wicket:id="additionalLinkTitle" class="additionalLinkItem">[link title]</span>
                     </a>
                 </li>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/serviceactions/ServiceActionsPanel.css b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/serviceactions/ServiceActionsPanel.css
index 7850090..7a9bf1f 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/serviceactions/ServiceActionsPanel.css
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/serviceactions/ServiceActionsPanel.css
@@ -233,12 +233,12 @@
     list-style:none;
 }
 
-.entityCollectionsPanel .panel-heading .additionalLinkList {
+.entityCollectionsPanel .card-header .additionalLinkList {
     /*margin-right: 10px;*/
 }
 
 
-.pull-right .additionalLinkListDropDown {
+.float-right .additionalLinkListDropDown {
     margin-left: 0px;
 }
 
@@ -265,7 +265,7 @@
 .entityPropertiesPanel .additionalLinkList li {
     margin-right:0px;
 }
-.entityPropertiesPanel .properties .panel-heading .additionalLinkList {
+.entityPropertiesPanel .properties .card-header .additionalLinkList {
     margin-right: -5px;
 }
 
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/serviceactions/ServiceActionsPanel.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/serviceactions/ServiceActionsPanel.html
index 882fb6e..cccaa4e 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/serviceactions/ServiceActionsPanel.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/serviceactions/ServiceActionsPanel.html
@@ -20,8 +20,8 @@
 <html xmlns:wicket="http://wicket.apache.org">
     <body>
         <wicket:panel>
-            <li class="dropdown" wicket:id="menuItems">
-                <a href="javascript:;" class="dropdown-toggle" data-toggle="dropdown"><span wicket:id="name"></span> <span class="caret"></span></a>
+            <li class="nav-item dropdown" wicket:id="menuItems">
+                <a href="javascript:;" class="nav-link dropdown-toggle" data-toggle="dropdown"><span wicket:id="name"></span> <span class="caret"></span></a>
                 <ul wicket:id="topMenu" class="dropdown-menu multi-level" role="menu">
                     <li wicket:id="subMenuItems">
                         <wicket:container wicket:id="content"></wicket:container>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/serviceactions/ServiceActionsPanel.java b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/serviceactions/ServiceActionsPanel.java
index 1e0c6ec..300d04f 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/serviceactions/ServiceActionsPanel.java
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actionmenu/serviceactions/ServiceActionsPanel.java
@@ -38,7 +38,7 @@ import org.apache.isis.viewer.wicket.ui.util.Tooltips;
 
 import lombok.val;
 
-import de.agilecoders.wicket.extensions.markup.html.bootstrap.button.DropdownAutoOpenJavaScriptReference;
+// import de.agilecoders.wicket.extensions.markup.html.bootstrap.button.DropdownAutoOpenJavaScriptReference;
 
 /**
  * A panel responsible to render the application actions as menu in a navigation bar.
@@ -83,8 +83,8 @@ public class ServiceActionsPanel extends MenuActionPanel {
         response.render(CssHeaderItem.forReference(new CssResourceReference(ServiceActionsPanel.class, "ServiceActionsPanel.css")));
         Tooltips.renderHead(response);
 
-        response.render(JavaScriptHeaderItem.forReference(DropdownAutoOpenJavaScriptReference.instance()));
-        response.render(OnDomReadyHeaderItem.forScript("$('.dropdown-toggle').dropdownHover();"));
+        // response.render(JavaScriptHeaderItem.forReference(DropdownAutoOpenJavaScriptReference.instance()));
+        // response.render(OnDomReadyHeaderItem.forScript("$('.dropdown-toggle').dropdownHover();"));
 
         SSESupport.renderHead(response);
 
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actions/ActionParametersFormPanel.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actions/ActionParametersFormPanel.html
index 05eaaec..a1582fa 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actions/ActionParametersFormPanel.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actions/ActionParametersFormPanel.html
@@ -29,7 +29,7 @@
                         <span wicket:id="feedback"></span>
                         <div class="buttons">
                             <input type="submit" wicket:id="okButton" value="OK" class="ok btn btn-sm btn-primary"/>
-                            <input type="submit" wicket:id="cancelButton" value="Cancel" class="cancel btn btn-sm btn-default"/>
+                            <input type="submit" wicket:id="cancelButton" value="Cancel" class="cancel btn btn-sm btn-secondary"/>
                         </div>
                     </fieldset>
                 </form>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actions/ActionParametersPanel.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actions/ActionParametersPanel.html
index de76cf2..dbdbf0a 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actions/ActionParametersPanel.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/actions/ActionParametersPanel.html
@@ -25,7 +25,7 @@
     <body>
         <wicket:panel>
             <div class="actionPanel actionComponentType">
-                <div wicket:id="header" class="iconAndTitle panel panel-default actionPanelHeaderNew">
+                <div wicket:id="header" class="iconAndTitle card panel-default actionPanelHeaderNew">
                      <wicket:container wicket:id="entityIconAndTitle">[icon and title]</wicket:container>
                      <h3 wicket:id="actionName" class="actionName">[action name]</h3>
                 </div>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/bookmarkedpages/BookmarkedPagesPanel.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/bookmarkedpages/BookmarkedPagesPanel.html
index 8df8ad7..df48998 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/bookmarkedpages/BookmarkedPagesPanel.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/bookmarkedpages/BookmarkedPagesPanel.html
@@ -30,12 +30,12 @@
                     <div class="row">
                         <div class="col-xs-12">
                             <div class="panel-group">
-                                <div class="panel panel-default">
-                                    <div class="panel-heading">
-                                        <h4 class="panel-title"><span class="fa fa-fw fa-bookmark"></span> Bookmarks</h4>
+                                <div class="card panel-default">
+                                    <div class="card-header">
+                                        <h4 class="card-title"><span class="fa fa-fw fa-bookmark"></span> Bookmarks</h4>
                                     </div>
 
-                                    <div class="panel-body" wicket:enclosure="helpText">
+                                    <div class="card-body" wicket:enclosure="helpText">
                                         <span wicket:id="helpText"></span>
                                     </div>
 
@@ -51,7 +51,7 @@
                                                             </div>
                                                         </a>
 
-                                                        <a href="#" wicket:id="clearBookmarkLink" class="clearBookmarkPlaceHolder pull-right">
+                                                        <a href="#" wicket:id="clearBookmarkLink" class="clearBookmarkPlaceHolder float-right">
                                                             <span class="fa fa-fw fa-ban text-danger"></span>
                                                         </a>
                                                     </div>
@@ -60,9 +60,9 @@
                                         </li>
                                     </ul>
 
-                                    <div class="panel-footer" wicket:enclosure="clearBookmarks">
+                                    <div class="card-footer" wicket:enclosure="clearBookmarks">
                                         <span>&nbsp;</span>
-                                        <a href="#" wicket:id="clearBookmarks" class="clearBookmarksA btn-link pull-right" title="Clear Bookmarks">
+                                        <a href="#" wicket:id="clearBookmarks" class="clearBookmarksA btn-link float-right" title="Clear Bookmarks">
                                             <span class="text-danger">Clear all</span>
                                         </a>
                                     </div>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/collectioncontents/ajaxtable/CollectionContentsAsAjaxTablePanel.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/collectioncontents/ajaxtable/CollectionContentsAsAjaxTablePanel.html
index cf45f34..c69e380 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/collectioncontents/ajaxtable/CollectionContentsAsAjaxTablePanel.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/collectioncontents/ajaxtable/CollectionContentsAsAjaxTablePanel.html
@@ -23,7 +23,7 @@
             <div class="collectionContentsAsAjaxTablePanel collectionContentsComponentType">
                 <div class="clearfix"></div>
                 <div class="table-responsive">
-                    <table class="contents table table-striped table-condensed table-hover table-bordered" cellspacing="0" wicket:id="table">[table]</table>
+                    <table class="contents table table-striped table-sm table-hover table-bordered" cellspacing="0" wicket:id="table">[table]</table>
                 </div>
             </div>
         </wicket:panel>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/collectioncontents/summary/CollectionContentsAsSummary.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/collectioncontents/summary/CollectionContentsAsSummary.html
index 1f55751..7ceba8a 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/collectioncontents/summary/CollectionContentsAsSummary.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/collectioncontents/summary/CollectionContentsAsSummary.html
@@ -23,13 +23,13 @@
             <div class="collectionContentsAsSummary">
                 <div wicket:id="feedback"></div>
 
-                <table class="table table-condensed table-bordered table-striped">
+                <table class="table table-sm table-bordered table-striped">
                     <tr wicket:id="repeatingSummary">
                         <td class="propertyNameCell">
                             <span class="propertyName" wicket:id="propertyName">[propertyName]</span>
                         </td>
                         <td class="aggregatesCell">
-                            <table class="table table-condensed" style="background-color: inherit; margin-bottom: 0">
+                            <table class="table table-sm" style="background-color: inherit; margin-bottom: 0">
                                 <tr>
                                     <td class="aggregateName">Sum:</td><td><input class="numberValue form-control" type="text" disabled="disabled" wicket:id="sum"/></td>
                                     <td class="aggregateName">Avg:</td><td><input class="numberValue form-control" type="text" disabled="disabled" wicket:id="avg"/></td>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/entity/collection/EntityCollectionPanel.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/entity/collection/EntityCollectionPanel.html
index b00e895..eeaf887 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/entity/collection/EntityCollectionPanel.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/entity/collection/EntityCollectionPanel.html
@@ -21,10 +21,10 @@
     <body>
         <wicket:panel>
             <div wicket:id="collectionGroup">
-                <div class="panel panel-default">
-                    <div class="panel-heading">
-                        <span wicket:id="collectionName" class="panel-title">[collection name]</span>
-                        <div class="additionalLinksAndSelectorDropDown pull-right">
+                <div class="card panel-default">
+                    <div class="card-header">
+                        <span wicket:id="collectionName" class="card-title">[collection name]</span>
+                        <div class="additionalLinksAndSelectorDropDown float-right">
 
                             <div class="btn-group">
                                 <div wicket:id="additionalLinks"></div>
@@ -36,7 +36,7 @@
                         </div>
                     </div>
 
-                    <div wicket:id="collection" class="collection panel-body">
+                    <div wicket:id="collection" class="collection card-body">
                         [collection]
                     </div>
                 </div>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/entity/fieldset/PropertyGroup.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/entity/fieldset/PropertyGroup.html
index c9bf33f..99d0480 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/entity/fieldset/PropertyGroup.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/entity/fieldset/PropertyGroup.html
@@ -21,15 +21,15 @@
     <body>
         <wicket:panel>
             <fieldset class="memberGroup" wicket:id="memberGroup">
-                <div class="panel panel-default">
-                    <div class="panel-heading" wicket:id="panelHeading">
-                        <span wicket:id="memberGroupName" class="panel-title">[group name]</span>
-                        <div class="pull-right additionalLinks">
-                            <div class="pull-right" wicket:id="associatedActionLinksPanelDropDown"></div>
-                            <div class="pull-right" wicket:id="associatedActionLinksPanel"></div>
+                <div class="card panel-default">
+                    <div class="card-header" wicket:id="panelHeading">
+                        <span wicket:id="memberGroupName" class="card-title">[group name]</span>
+                        <div class="float-right additionalLinks">
+                            <div class="float-right" wicket:id="associatedActionLinksPanelDropDown"></div>
+                            <div class="float-right" wicket:id="associatedActionLinksPanel"></div>
                         </div>
                     </div>
-                    <div class="properties panel-body">
+                    <div class="properties card-body">
                         <div wicket:id="properties">
                             <div wicket:id="property" class="property">[property]</div>
                         </div>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/header/HeaderPanel.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/header/HeaderPanel.html
index e6cf8cd..7b1c938 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/header/HeaderPanel.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/header/HeaderPanel.html
@@ -20,11 +20,12 @@
 <html xmlns:wicket="http://wicket.apache.org">
     <body>
         <wicket:panel>
-            <header class="navbar navbar-default navbar-fixed-top" role="navigation">
+        	<header>
+            <nav class="navbar navbar-expand-sm navbar-fixed-top bg-dark navbar-dark" role="navigation">
 
             <div class="container-fluid">
                 <div class="navbar-header">
-                    <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target=".navbar-collapse.app-actions">
+                    <button type="button" class="navbar-toggler collapsed" data-toggle="collapse" data-target=".navbar-collapse.app-actions">
                         <span class="sr-only">Toggle navigation</span>
                         <span class="icon-bar"></span>
                         <span class="icon-bar"></span>
@@ -36,11 +37,11 @@
                     </a>
                 </div>
                 <div class="navbar-collapse app-actions collapse navbar-left">
-                    <ul class="nav navbar-nav" wicket:id="primaryMenuBar"></ul>
+                    <ul class="navbar-nav" wicket:id="primaryMenuBar"></ul>
                 </div>
                 <div class="navbar-collapse app-actions collapse navbar-right">
-                    <ul class="nav navbar-nav" wicket:id="secondaryMenuBar"></ul>
-                    <ul class="nav navbar-nav tertiary">
+                    <ul class="navbar-nav" wicket:id="secondaryMenuBar"></ul>
+                    <ul class="navbar-nav tertiary">
                         <li class="dropdown">
                             <a href="#" class="dropdown-toggle" data-toggle="dropdown" style="padding-bottom: 5px;">
                                 <span wicket:id="userIcon">
@@ -57,6 +58,7 @@
                 </div>
             </div>
 
+            </nav>
             </header>
         </wicket:panel>
     </body>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/property/PropertyEditFormPanel.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/property/PropertyEditFormPanel.html
index 352c214..db6aeed 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/property/PropertyEditFormPanel.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/property/PropertyEditFormPanel.html
@@ -29,7 +29,7 @@
                         <span wicket:id="feedback"></span>
                         <div class="buttons">
                             <input type="submit" wicket:id="okButton" value="OK" class="ok btn btn-sm btn-primary"/>
-                            <input type="submit" wicket:id="cancelButton" value="Cancel" class="cancel btn btn-sm btn-default"/>
+                            <input type="submit" wicket:id="cancelButton" value="Cancel" class="cancel btn btn-sm btn-secondary"/>
                         </div>
                     </fieldset>
                 </form>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/property/PropertyEditPanel.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/property/PropertyEditPanel.html
index 8eacbe3..4ba5cae 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/property/PropertyEditPanel.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/property/PropertyEditPanel.html
@@ -25,7 +25,7 @@
     <body>
         <wicket:panel>
             <div class="propertyEditPanel propertyEditComponentType">
-                <div wicket:id="header" class="iconAndTitle panel panel-default actionPanelHeaderNew">
+                <div wicket:id="header" class="iconAndTitle card panel-default actionPanelHeaderNew">
                      <wicket:container wicket:id="entityIconAndTitle">[icon and title]</wicket:container>
                 </div>
                 <div wicket:id="propertyEditForm"></div>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/ScalarPanelAbstract.java b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/ScalarPanelAbstract.java
index a4e5223..15cc4ed 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/ScalarPanelAbstract.java
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/ScalarPanelAbstract.java
@@ -697,7 +697,7 @@ implements ScalarModelSubscriber {
     }
 
     protected String obtainInlinePromptLinkCssIfAny() {
-        return "form-control input-sm";
+        return "form-control form-control-sm";
     }
 
     protected Component createInlinePromptComponent(
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/ScalarPanelTextFieldAbstract.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/ScalarPanelTextFieldAbstract.html
index f70efc3..3e4a3b6 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/ScalarPanelTextFieldAbstract.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/ScalarPanelTextFieldAbstract.html
@@ -30,7 +30,7 @@
         <div class="form-group"
              wicket:id="scalarIfRegular">
 
-            <label class="scalarName control-label"
+            <label class="scalarName col-form-label"
                    wicket:id="scalarName"
             >[Label text]</label>
 
@@ -59,7 +59,7 @@
                               wicket:id="associatedActionLinksRight"
                         >[drop down]</span>
                     </div>
-                    <span wicket:id="feedback" class="help-block"></span>
+                    <span wicket:id="feedback" class="form-text"></span>
                     <span wicket:id="associatedActionLinksBelow"></span>
                 </span>
             <div class="clearfix"></div>
@@ -77,7 +77,7 @@
         <input
                 type="text"
                 name="scalarValue"
-                class="form-control input-sm scalarValue"
+                class="form-control form-control-sm scalarValue"
                 wicket:id="scalarValue" />
     </wicket:fragment>
 
@@ -86,14 +86,14 @@
     </wicket:fragment>
 
     <wicket:fragment wicket:id="textareaInlinePrompt">
-        <textarea class="form-control input-sm" wicket:id="scalarValue"></textarea>
+        <textarea class="form-control form-control-sm" wicket:id="scalarValue"></textarea>
     </wicket:fragment>
 
 
     <wicket:fragment wicket:id="textarea">
                 <textarea
                         name="scalarValue"
-                        class="form-control input-sm scalarValue"
+                        class="form-control form-control-sm scalarValue"
                         wicket:id="scalarValue">
                 </textarea>
     </wicket:fragment>
@@ -103,7 +103,7 @@
             <input
                     type="text"
                     name="scalarValue"
-                    class="form-control input-sm scalarValue"
+                    class="form-control form-control-sm scalarValue"
                     wicket:id="scalarValue"/>
         </div>
     </wicket:fragment>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/XEditableBehaviorWkt.java b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/XEditableBehaviorWkt.java
deleted file mode 100644
index b319274..0000000
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/XEditableBehaviorWkt.java
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- *  Licensed to the Apache Software Foundation (ASF) under one
- *  or more contributor license agreements.  See the NOTICE file
- *  distributed with this work for additional information
- *  regarding copyright ownership.  The ASF licenses this file
- *  to you under the Apache License, Version 2.0 (the
- *  "License"); you may not use this file except in compliance
- *  with the License.  You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing,
- *  software distributed under the License is distributed on an
- *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- *  KIND, either express or implied.  See the License for the
- *  specific language governing permissions and limitations
- *  under the License.
- */
-
-package org.apache.isis.viewer.wicket.ui.components.scalars;
-
-import org.apache.wicket.Component;
-import org.apache.wicket.ajax.AjaxEventBehavior;
-import org.apache.wicket.ajax.AjaxRequestTarget;
-import org.apache.wicket.ajax.attributes.AjaxRequestAttributes;
-import org.apache.wicket.request.cycle.RequestCycle;
-import org.apache.wicket.util.string.StringValue;
-
-import de.agilecoders.wicket.extensions.markup.html.bootstrap.xeditable.XEditableBehavior;
-
-public class XEditableBehaviorWkt extends XEditableBehavior {
-
-    private static final long serialVersionUID = 1L;
-    private AjaxEventBehavior validateListener;
-
-    /**
-     * Fired when new value for validation.
-     */
-    protected void onValidate(AjaxRequestTarget target, String value) {
-
-    }
-
-    @Override
-    public void bind(Component component) {
-        super.bind(component);
-        validateListener = newSaveListener();
-        component.add(validateListener);
-    }
-
-    @Override
-    public void unbind(Component component) {
-        component.remove(validateListener);
-        validateListener = null;
-
-        super.unbind(component);
-    }
-
-    protected AjaxEventBehavior newValidateListener() {
-        return new AjaxEventBehavior("validate") {
-
-            private static final long serialVersionUID = 1L;
-
-            /**
-             * what's bound to "validate" event in JavaScript, and sent to the server
-             */
-            @Override
-            protected void updateAjaxAttributes(AjaxRequestAttributes attributes) {
-                super.updateAjaxAttributes(attributes);
-                attributes.getDynamicExtraParameters().add("return [{'name':'newValue', 'value': attrs.event.extraData.newValue}]");
-            }
-
-            /**
-             * What's received at the server
-             */
-            @Override
-            protected void onEvent(AjaxRequestTarget target) {
-                StringValue newValue = RequestCycle.get().getRequest().getRequestParameters().getParameterValue("newValue");
-                onValidate(target, newValue.toString());
-            }
-
-        };
-    }
-
-
-
-}
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/blobclob/IsisBlobOrClobPanelAbstract.html b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/blobclob/IsisBlobOrClobPanelAbstract.html
index 0aaadae..56f0556 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/blobclob/IsisBlobOrClobPanelAbstract.html
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/blobclob/IsisBlobOrClobPanelAbstract.html
@@ -28,7 +28,7 @@
                 <div class="form-group"
                      wicket:id="scalarIfRegular">
 
-                    <label class="scalarName control-label"
+                    <label class="scalarName col-form-label"
                            wicket:id="scalarName"
                     >[Label text]</label>
 
@@ -42,7 +42,7 @@
                                     <img class="scalarImage text-center" width="200px" wicket:id="scalarImage"/>
                                     <span class="scalarValue text-right">
 
-                                        <span class="uploadFile help-block">
+                                        <span class="uploadFile form-text">
                                             <input type="file" name="scalarValue" wicket:id="scalarValue" />
                                         </span>
                                         <a wicket:id="scalarIfRegularClear" class="btn btn-primary btn-sm"><span class="clearTitle">Clear</span></a>
@@ -61,7 +61,7 @@
                                   wicket:id="associatedActionLinksRight"
                             >[drop down]</span>
                         </div>
-                        <span wicket:id="feedback" class="help-block"></span>
+                        <span wicket:id="feedback" class="form-text"></span>
                         <span wicket:id="associatedActionLinksBelow"></span>
                     </span>
                     <div class="clearfix"/>
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/DateTimeConfig.java b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/DateTimeConfig.java
index 6bcb8dc..02f3e65 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/DateTimeConfig.java
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/DateTimeConfig.java
@@ -36,7 +36,7 @@ import de.agilecoders.wicket.jquery.IKey;
 
 /**
  * Configuration holder for all {@link TextFieldWithDateTimePicker} configurations.
- * Provides settings for <a href="https://github.com/Eonasdan/bootstrap-datetimepicker">Bootstrap Datetime picker</a>
+ * Provides settings for <a href="https://github.com/tempusdominus/bootstrap-4">Tempus Dominus Bootstrap 4 Datetime Picker</a>
  * JavaScript widget
  */
 public class DateTimeConfig extends AbstractConfig {
@@ -45,6 +45,11 @@ public class DateTimeConfig extends AbstractConfig {
     /**
      * The earliest date that may be selected; all earlier dates will be disabled.
      */
+    private static final IKey<Boolean> KeepOpen = newKey("keepOpen", false);    
+    
+    /**
+     * The earliest date that may be selected; all earlier dates will be disabled.
+     */
     private static final IKey<String> StartDate = newKey("startDate", null);
 
     /**
@@ -181,6 +186,17 @@ public class DateTimeConfig extends AbstractConfig {
     public boolean isDefaultLanguageSet() {
         return Language.isDefaultValue(getLanguage());
     }
+    
+    /**
+     * Will cause the date picker to stay open after selecting a date.
+     * 
+     * @param keepOpen whether to keep open
+     * @return this instance for chaining
+     */
+    public DateTimeConfig keepOpen(final boolean keepOpen) {
+        put(KeepOpen, keepOpen);
+        return this;
+    }
 
     /**
      * The earliest date that may be selected; all earlier dates will be disabled.
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/TextFieldWithDateTimePicker.java b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/TextFieldWithDateTimePicker.java
index cdb3b8b..371b1dd 100644
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/TextFieldWithDateTimePicker.java
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/TextFieldWithDateTimePicker.java
@@ -92,6 +92,8 @@ public class TextFieldWithDateTimePicker<T> extends TextField<T> implements ICon
         config.minDate(datePickerMinDate);
         config.maxDate(datePickerMaxDate);
 
+        config.keepOpen(true);
+        
         this.config = config;
     }
 
@@ -131,16 +133,21 @@ public class TextFieldWithDateTimePicker<T> extends TextField<T> implements ICon
 
         checkComponentTag(tag, "input");
         Attributes.set(tag, "type", "text");
+        
+        Attributes.addClass(tag, "datetimepicker-input");
+        Attributes.set(tag, "data-toggle", "datetimepicker");
+        Attributes.set(tag, "data-target", getMarkupId());
     }
 
     @Override
     public void renderHead(final IHeaderResponse response) {
         super.renderHead(response);
 
-        response.render(CssHeaderItem.forReference(new CssResourceReference(TextFieldWithDateTimePicker.class, "css/bootstrap-datetimepicker.css")));
+        response.render(CssHeaderItem.forReference(new CssResourceReference(TextFieldWithDateTimePicker.class, "css/fa-patch.css")));
+        response.render(CssHeaderItem.forReference(new CssResourceReference(TextFieldWithDateTimePicker.class, "css/tempusdominus-bootstrap-4.css")));
 
-        response.render(JavaScriptHeaderItem.forReference(new JavaScriptResourceReference(TextFieldWithDateTimePicker.class, "js/moment.js")));
-        response.render(JavaScriptHeaderItem.forReference(new JavaScriptResourceReference(TextFieldWithDateTimePicker.class, "js/bootstrap-datetimepicker.js")));
+        response.render(JavaScriptHeaderItem.forReference(new JavaScriptResourceReference(TextFieldWithDateTimePicker.class, "js/moment-with-locales.js")));
+        response.render(JavaScriptHeaderItem.forReference(new JavaScriptResourceReference(TextFieldWithDateTimePicker.class, "js/tempusdominus-bootstrap-4.js")));
 
         response.render(OnDomReadyHeaderItem.forScript(createScript(config)));
     }
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/bootstrap-datetimepicker.css b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/bootstrap-datetimepicker.css
deleted file mode 100644
index 590fca1..0000000
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/bootstrap-datetimepicker.css
+++ /dev/null
@@ -1,341 +0,0 @@
-/*!
- * Datetimepicker for Bootstrap 3
-//! version : 4.0.0-beta
- * https://github.com/Eonasdan/bootstrap-datetimepicker/
- */
-.bootstrap-datetimepicker-widget.dropdown-menu {
-  margin: 2px 0;
-  padding: 4px;
-  width: 19em;
-}
-@media (min-width: 768px) {
-  .bootstrap-datetimepicker-widget.dropdown-menu.timepicker-sbs {
-    width: 38em;
-  }
-}
-@media (min-width: 992px) {
-  .bootstrap-datetimepicker-widget.dropdown-menu.timepicker-sbs {
-    width: 38em;
-  }
-}
-@media (min-width: 1200px) {
-  .bootstrap-datetimepicker-widget.dropdown-menu.timepicker-sbs {
-    width: 38em;
-  }
-}
-.bootstrap-datetimepicker-widget.dropdown-menu:before,
-.bootstrap-datetimepicker-widget.dropdown-menu:after {
-  content: '';
-  display: inline-block;
-  position: absolute;
-}
-.bootstrap-datetimepicker-widget.dropdown-menu.bottom:before {
-  border-left: 7px solid transparent;
-  border-right: 7px solid transparent;
-  border-bottom: 7px solid #ccc;
-  border-bottom-color: rgba(0, 0, 0, 0.2);
-  top: -7px;
-  left: 7px;
-}
-.bootstrap-datetimepicker-widget.dropdown-menu.bottom:after {
-  border-left: 6px solid transparent;
-  border-right: 6px solid transparent;
-  border-bottom: 6px solid white;
-  top: -6px;
-  left: 8px;
-}
-.bootstrap-datetimepicker-widget.dropdown-menu.top:before {
-  border-left: 7px solid transparent;
-  border-right: 7px solid transparent;
-  border-top: 7px solid #ccc;
-  border-top-color: rgba(0, 0, 0, 0.2);
-  bottom: -7px;
-  left: 6px;
-}
-.bootstrap-datetimepicker-widget.dropdown-menu.top:after {
-  border-left: 6px solid transparent;
-  border-right: 6px solid transparent;
-  border-top: 6px solid white;
-  bottom: -6px;
-  left: 7px;
-}
-.bootstrap-datetimepicker-widget.dropdown-menu.pull-right:before {
-  left: auto;
-  right: 6px;
-}
-.bootstrap-datetimepicker-widget.dropdown-menu.pull-right:after {
-  left: auto;
-  right: 7px;
-}
-.bootstrap-datetimepicker-widget .list-unstyled {
-  margin: 0;
-}
-.bootstrap-datetimepicker-widget a[data-action] {
-  padding: 6px 0;
-}
-.bootstrap-datetimepicker-widget a[data-action]:active {
-  box-shadow: none;
-}
-.bootstrap-datetimepicker-widget .timepicker-hour,
-.bootstrap-datetimepicker-widget .timepicker-minute,
-.bootstrap-datetimepicker-widget .timepicker-second {
-  width: 54px;
-  font-weight: bold;
-  font-size: 1.2em;
-  margin: 0;
-}
-.bootstrap-datetimepicker-widget button[data-action] {
-  padding: 6px;
-}
-.bootstrap-datetimepicker-widget .btn[data-action="incrementHours"]::after {
-  position: absolute;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  padding: 0;
-  overflow: hidden;
-  clip: rect(0, 0, 0, 0);
-  border: 0;
-  content: "Increment Hours";
-}
-.bootstrap-datetimepicker-widget .btn[data-action="incrementMinutes"]::after {
-  position: absolute;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  padding: 0;
-  overflow: hidden;
-  clip: rect(0, 0, 0, 0);
-  border: 0;
-  content: "Increment Minutes";
-}
-.bootstrap-datetimepicker-widget .btn[data-action="decrementHours"]::after {
-  position: absolute;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  padding: 0;
-  overflow: hidden;
-  clip: rect(0, 0, 0, 0);
-  border: 0;
-  content: "Decrement Hours";
-}
-.bootstrap-datetimepicker-widget .btn[data-action="decrementMinutes"]::after {
-  position: absolute;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  padding: 0;
-  overflow: hidden;
-  clip: rect(0, 0, 0, 0);
-  border: 0;
-  content: "Decrement Minutes";
-}
-.bootstrap-datetimepicker-widget .btn[data-action="showHours"]::after {
-  position: absolute;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  padding: 0;
-  overflow: hidden;
-  clip: rect(0, 0, 0, 0);
-  border: 0;
-  content: "Show Hours";
-}
-.bootstrap-datetimepicker-widget .btn[data-action="showMinutes"]::after {
-  position: absolute;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  padding: 0;
-  overflow: hidden;
-  clip: rect(0, 0, 0, 0);
-  border: 0;
-  content: "Show Minutes";
-}
-.bootstrap-datetimepicker-widget .btn[data-action="togglePeriod"]::after {
-  position: absolute;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  padding: 0;
-  overflow: hidden;
-  clip: rect(0, 0, 0, 0);
-  border: 0;
-  content: "Toggle AM/PM";
-}
-.bootstrap-datetimepicker-widget .picker-switch {
-  text-align: center;
-}
-.bootstrap-datetimepicker-widget .picker-switch::after {
-  position: absolute;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  padding: 0;
-  overflow: hidden;
-  clip: rect(0, 0, 0, 0);
-  border: 0;
-  content: "Toggle Date and Time Screens";
-}
-.bootstrap-datetimepicker-widget .picker-switch td {
-  padding: 0;
-  margin: 0;
-  height: auto;
-  width: auto;
-  line-height: inherit;
-}
-.bootstrap-datetimepicker-widget .picker-switch td span {
-  line-height: 2.5;
-  height: 2.5em;
-  width: 100%;
-}
-.bootstrap-datetimepicker-widget table {
-  width: 100%;
-  margin: 0;
-}
-.bootstrap-datetimepicker-widget td,
-.bootstrap-datetimepicker-widget th {
-  text-align: center;
-  border-radius: 4px;
-}
-.bootstrap-datetimepicker-widget th {
-  height: 20px;
-  line-height: 20px;
-  width: 20px;
-}
-.bootstrap-datetimepicker-widget th.picker-switch {
-  width: 145px;
-}
-.bootstrap-datetimepicker-widget th.disabled,
-.bootstrap-datetimepicker-widget th.disabled:hover {
-  background: none;
-  color: #777777;
-  cursor: not-allowed;
-}
-.bootstrap-datetimepicker-widget th.prev::after {
-  position: absolute;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  padding: 0;
-  overflow: hidden;
-  clip: rect(0, 0, 0, 0);
-  border: 0;
-  content: "Previous Month";
-}
-.bootstrap-datetimepicker-widget th.next::after {
-  position: absolute;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  padding: 0;
-  overflow: hidden;
-  clip: rect(0, 0, 0, 0);
-  border: 0;
-  content: "Next Month";
-}
-.bootstrap-datetimepicker-widget thead tr:first-child th {
-  cursor: pointer;
-}
-.bootstrap-datetimepicker-widget thead tr:first-child th:hover {
-  background: #eeeeee;
-}
-.bootstrap-datetimepicker-widget td {
-  height: 54px;
-  line-height: 54px;
-  width: 54px;
-}
-.bootstrap-datetimepicker-widget td.cw {
-  font-size: .8em;
-  height: 20px;
-  line-height: 20px;
-  color: #777777;
-}
-.bootstrap-datetimepicker-widget td.day {
-  height: 20px;
-  line-height: 20px;
-  width: 20px;
-}
-.bootstrap-datetimepicker-widget td.day:hover,
-.bootstrap-datetimepicker-widget td.hour:hover,
-.bootstrap-datetimepicker-widget td.minute:hover,
-.bootstrap-datetimepicker-widget td.second:hover {
-  background: #eeeeee;
-  cursor: pointer;
-}
-.bootstrap-datetimepicker-widget td.old,
-.bootstrap-datetimepicker-widget td.new {
-  color: #777777;
-}
-.bootstrap-datetimepicker-widget td.today {
-  position: relative;
-}
-.bootstrap-datetimepicker-widget td.today:before {
-  content: '';
-  display: inline-block;
-  border-left: 7px solid transparent;
-  border-bottom: 7px solid #428bca;
-  border-top-color: rgba(0, 0, 0, 0.2);
-  position: absolute;
-  bottom: 4px;
-  right: 4px;
-}
-.bootstrap-datetimepicker-widget td.active,
-.bootstrap-datetimepicker-widget td.active:hover {
-  background-color: #428bca;
-  color: #ffffff;
-  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
-}
-.bootstrap-datetimepicker-widget td.active.today:before {
-  border-bottom-color: #fff;
-}
-.bootstrap-datetimepicker-widget td.disabled,
-.bootstrap-datetimepicker-widget td.disabled:hover {
-  background: none;
-  color: #777777;
-  cursor: not-allowed;
-}
-.bootstrap-datetimepicker-widget td span {
-  display: inline-block;
-  width: 54px;
-  height: 54px;
-  line-height: 54px;
-  margin: 2px 1.5px;
-  cursor: pointer;
-  border-radius: 4px;
-}
-.bootstrap-datetimepicker-widget td span:hover {
-  background: #eeeeee;
-}
-.bootstrap-datetimepicker-widget td span.active {
-  background-color: #428bca;
-  color: #ffffff;
-  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
-}
-.bootstrap-datetimepicker-widget td span.old {
-  color: #777777;
-}
-.bootstrap-datetimepicker-widget td span.disabled,
-.bootstrap-datetimepicker-widget td span.disabled:hover {
-  background: none;
-  color: #777777;
-  cursor: not-allowed;
-}
-.bootstrap-datetimepicker-widget.usetwentyfour td.hour {
-  height: 27px;
-  line-height: 27px;
-}
-.input-group.date .input-group-addon {
-  cursor: pointer;
-}
-.sr-only {
-  position: absolute;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  padding: 0;
-  overflow: hidden;
-  clip: rect(0, 0, 0, 0);
-  border: 0;
-}
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/bootstrap-datetimepicker.min.css b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/bootstrap-datetimepicker.min.css
deleted file mode 100644
index 13473f3..0000000
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/bootstrap-datetimepicker.min.css
+++ /dev/null
@@ -1,5 +0,0 @@
-/*!
- * Datetimepicker for Bootstrap 3
-//! version : 4.0.0-beta
- * https://github.com/Eonasdan/bootstrap-datetimepicker/
- */.bootstrap-datetimepicker-widget.dropdown-menu{margin:2px 0;padding:4px;width:19em}@media (min-width:768px){.bootstrap-datetimepicker-widget.dropdown-menu.timepicker-sbs{width:38em}}@media (min-width:992px){.bootstrap-datetimepicker-widget.dropdown-menu.timepicker-sbs{width:38em}}@media (min-width:1200px){.bootstrap-datetimepicker-widget.dropdown-menu.timepicker-sbs{width:38em}}.bootstrap-datetimepicker-widget.dropdown-menu:before,.bootstrap-datetimepicker-widget.dropdown-menu:after{c [...]
\ No newline at end of file
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/fa-patch.css b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/fa-patch.css
new file mode 100644
index 0000000..f74e847
--- /dev/null
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/fa-patch.css
@@ -0,0 +1,4 @@
+
+.bootstrap-datetimepicker-widget .fa-clock-o:before {
+	content: "\f017" 
+}
\ No newline at end of file
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/tempusdominus-bootstrap-4.css b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/tempusdominus-bootstrap-4.css
new file mode 100644
index 0000000..364ec90
--- /dev/null
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/tempusdominus-bootstrap-4.css
@@ -0,0 +1,332 @@
+/*!@preserve
+ * Tempus Dominus Bootstrap4 v5.39.0 (https://tempusdominus.github.io/bootstrap-4/)
+ * Copyright 2016-2020 Jonathan Peterson and contributors
+ * Licensed under MIT (https://github.com/tempusdominus/bootstrap-3/blob/master/LICENSE)
+ */
+
+.sr-only, .bootstrap-datetimepicker-widget table th.next::after, .bootstrap-datetimepicker-widget table th.prev::after, .bootstrap-datetimepicker-widget .picker-switch::after, .bootstrap-datetimepicker-widget .btn[data-action=today]::after, .bootstrap-datetimepicker-widget .btn[data-action=clear]::after, .bootstrap-datetimepicker-widget .btn[data-action=togglePeriod]::after, .bootstrap-datetimepicker-widget .btn[data-action=showMinutes]::after, .bootstrap-datetimepicker-widget .btn[data- [...]
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  margin: -1px;
+  padding: 0;
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  border: 0;
+}
+
+body.tempusdominus-bootstrap-datetimepicker-widget-day-click,
+body.tempusdominus-bootstrap-datetimepicker-widget-day-click * {
+  cursor: pointer !important;
+}
+
+body.tempusdominus-bootstrap-datetimepicker-widget-day-click {
+  position: relative !important;
+}
+
+.tempusdominus-bootstrap-datetimepicker-widget-day-click-glass-panel {
+  position: absolute;
+  z-index: 999999999999;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  cursor: pointer !important;
+}
+
+.bootstrap-datetimepicker-widget .datepicker-days tbody td {
+  cursor: pointer;
+}
+
+.bootstrap-datetimepicker-widget {
+  list-style: none;
+}
+.bootstrap-datetimepicker-widget.dropdown-menu {
+  display: block;
+  margin: 2px 0;
+  padding: 4px;
+  width: 14rem;
+}
+.bootstrap-datetimepicker-widget.dropdown-menu.tempusdominus-bootstrap-datetimepicker-widget-with-feather-icons {
+  width: 16rem;
+}
+.bootstrap-datetimepicker-widget.dropdown-menu.tempusdominus-bootstrap-datetimepicker-widget-with-calendar-weeks {
+  width: 16rem;
+}
+.bootstrap-datetimepicker-widget.dropdown-menu.tempusdominus-bootstrap-datetimepicker-widget-with-calendar-weeks.tempusdominus-bootstrap-datetimepicker-widget-with-feather-icons {
+  width: 17rem;
+}
+@media (min-width: 576px) {
+  .bootstrap-datetimepicker-widget.dropdown-menu.timepicker-sbs {
+    width: 38em;
+  }
+}
+@media (min-width: 768px) {
+  .bootstrap-datetimepicker-widget.dropdown-menu.timepicker-sbs {
+    width: 38em;
+  }
+}
+@media (min-width: 992px) {
+  .bootstrap-datetimepicker-widget.dropdown-menu.timepicker-sbs {
+    width: 38em;
+  }
+}
+.bootstrap-datetimepicker-widget.dropdown-menu:before, .bootstrap-datetimepicker-widget.dropdown-menu:after {
+  content: "";
+  display: inline-block;
+  position: absolute;
+}
+.bootstrap-datetimepicker-widget.dropdown-menu.bottom:before {
+  border-left: 7px solid transparent;
+  border-right: 7px solid transparent;
+  border-bottom: 7px solid #ccc;
+  border-bottom-color: rgba(0, 0, 0, 0.2);
+  top: -7px;
+  left: 7px;
+}
+.bootstrap-datetimepicker-widget.dropdown-menu.bottom:after {
+  border-left: 6px solid transparent;
+  border-right: 6px solid transparent;
+  border-bottom: 6px solid white;
+  top: -6px;
+  left: 8px;
+}
+.bootstrap-datetimepicker-widget.dropdown-menu.top:before {
+  border-left: 7px solid transparent;
+  border-right: 7px solid transparent;
+  border-top: 7px solid #ccc;
+  border-top-color: rgba(0, 0, 0, 0.2);
+  bottom: -7px;
+  left: 6px;
+}
+.bootstrap-datetimepicker-widget.dropdown-menu.top:after {
+  border-left: 6px solid transparent;
+  border-right: 6px solid transparent;
+  border-top: 6px solid white;
+  bottom: -6px;
+  left: 7px;
+}
+.bootstrap-datetimepicker-widget.dropdown-menu.float-right:before {
+  left: auto;
+  right: 6px;
+}
+.bootstrap-datetimepicker-widget.dropdown-menu.float-right:after {
+  left: auto;
+  right: 7px;
+}
+.bootstrap-datetimepicker-widget.dropdown-menu.wider {
+  width: 16rem;
+}
+.bootstrap-datetimepicker-widget .list-unstyled {
+  margin: 0;
+}
+.bootstrap-datetimepicker-widget a[data-action] {
+  padding: 6px 0;
+}
+.bootstrap-datetimepicker-widget a[data-action]:active {
+  box-shadow: none;
+}
+.bootstrap-datetimepicker-widget .timepicker-hour, .bootstrap-datetimepicker-widget .timepicker-minute, .bootstrap-datetimepicker-widget .timepicker-second {
+  width: 54px;
+  font-weight: bold;
+  font-size: 1.2em;
+  margin: 0;
+}
+.bootstrap-datetimepicker-widget button[data-action] {
+  padding: 6px;
+}
+.bootstrap-datetimepicker-widget .btn[data-action=togglePeriod] {
+  text-align: center;
+  font-family: Arial, sans-serif, -apple-system, system-ui, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
+  width: 38px;
+  height: 38px;
+}
+.bootstrap-datetimepicker-widget .btn[data-action=incrementHours]::after {
+  content: "Increment Hours";
+}
+.bootstrap-datetimepicker-widget .btn[data-action=incrementMinutes]::after {
+  content: "Increment Minutes";
+}
+.bootstrap-datetimepicker-widget .btn[data-action=decrementHours]::after {
+  content: "Decrement Hours";
+}
+.bootstrap-datetimepicker-widget .btn[data-action=decrementMinutes]::after {
+  content: "Decrement Minutes";
+}
+.bootstrap-datetimepicker-widget .btn[data-action=showHours]::after {
+  content: "Show Hours";
+}
+.bootstrap-datetimepicker-widget .btn[data-action=showMinutes]::after {
+  content: "Show Minutes";
+}
+.bootstrap-datetimepicker-widget .btn[data-action=togglePeriod]::after {
+  content: "Toggle AM/PM";
+}
+.bootstrap-datetimepicker-widget .btn[data-action=clear]::after {
+  content: "Clear the picker";
+}
+.bootstrap-datetimepicker-widget .btn[data-action=today]::after {
+  content: "Set the date to today";
+}
+.bootstrap-datetimepicker-widget .picker-switch {
+  text-align: center;
+}
+.bootstrap-datetimepicker-widget .picker-switch::after {
+  content: "Toggle Date and Time Screens";
+}
+.bootstrap-datetimepicker-widget .picker-switch td {
+  padding: 0;
+  margin: 0;
+  height: auto;
+  width: auto;
+  line-height: inherit;
+}
+.bootstrap-datetimepicker-widget .picker-switch td span {
+  line-height: 2.5;
+  height: 2.5em;
+  width: 100%;
+}
+.bootstrap-datetimepicker-widget .picker-switch.picker-switch-with-feathers-icons td span {
+  line-height: 2.8;
+  height: 2.8em;
+}
+.bootstrap-datetimepicker-widget table {
+  width: 100%;
+  margin: 0;
+}
+.bootstrap-datetimepicker-widget table td, .bootstrap-datetimepicker-widget table th {
+  text-align: center;
+  border-radius: 0.25rem;
+}
+.bootstrap-datetimepicker-widget table th {
+  height: 20px;
+  line-height: 20px;
+  width: 20px;
+}
+.bootstrap-datetimepicker-widget table th.picker-switch {
+  width: 145px;
+}
+.bootstrap-datetimepicker-widget table th.disabled, .bootstrap-datetimepicker-widget table th.disabled:hover {
+  background: none;
+  color: #6c757d;
+  cursor: not-allowed;
+}
+.bootstrap-datetimepicker-widget table th.prev::after {
+  content: "Previous Month";
+}
+.bootstrap-datetimepicker-widget table th.next::after {
+  content: "Next Month";
+}
+.bootstrap-datetimepicker-widget table thead tr:first-child th {
+  cursor: pointer;
+}
+.bootstrap-datetimepicker-widget table thead tr:first-child th:hover {
+  background: #e9ecef;
+}
+.bootstrap-datetimepicker-widget table td {
+  height: 54px;
+  line-height: 54px;
+  width: 54px;
+}
+.bootstrap-datetimepicker-widget table td.cw {
+  font-size: 0.8em;
+  height: 20px;
+  line-height: 20px;
+  color: #6c757d;
+  cursor: default;
+}
+.bootstrap-datetimepicker-widget table td.day {
+  height: 20px;
+  line-height: 20px;
+  width: 20px;
+}
+.bootstrap-datetimepicker-widget table td.day:hover, .bootstrap-datetimepicker-widget table td.hour:hover, .bootstrap-datetimepicker-widget table td.minute:hover, .bootstrap-datetimepicker-widget table td.second:hover {
+  background: #e9ecef;
+  cursor: pointer;
+}
+.bootstrap-datetimepicker-widget table td.old, .bootstrap-datetimepicker-widget table td.new {
+  color: #6c757d;
+}
+.bootstrap-datetimepicker-widget table td.today {
+  position: relative;
+}
+.bootstrap-datetimepicker-widget table td.today:before {
+  content: "";
+  display: inline-block;
+  border: solid transparent;
+  border-width: 0 0 7px 7px;
+  border-bottom-color: #007bff;
+  border-top-color: rgba(0, 0, 0, 0.2);
+  position: absolute;
+  bottom: 4px;
+  right: 4px;
+}
+.bootstrap-datetimepicker-widget table td.active, .bootstrap-datetimepicker-widget table td.active:hover {
+  background-color: #007bff;
+  color: #fff;
+  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
+}
+.bootstrap-datetimepicker-widget table td.active.today:before {
+  border-bottom-color: #fff;
+}
+.bootstrap-datetimepicker-widget table td.disabled, .bootstrap-datetimepicker-widget table td.disabled:hover {
+  background: none;
+  color: #6c757d;
+  cursor: not-allowed;
+}
+.bootstrap-datetimepicker-widget table td span {
+  display: inline-block;
+  width: 54px;
+  height: 54px;
+  line-height: 54px;
+  margin-top: 2px;
+  margin-bottom: 2px;
+  cursor: pointer;
+  border-radius: 0.25rem;
+}
+.bootstrap-datetimepicker-widget table td span:hover {
+  background: #e9ecef;
+}
+.bootstrap-datetimepicker-widget table td span.active {
+  background-color: #007bff;
+  color: #fff;
+  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
+}
+.bootstrap-datetimepicker-widget table td span.old {
+  color: #6c757d;
+}
+.bootstrap-datetimepicker-widget table td span.disabled, .bootstrap-datetimepicker-widget table td span.disabled:hover {
+  background: none;
+  color: #6c757d;
+  cursor: not-allowed;
+}
+.bootstrap-datetimepicker-widget.usetwentyfour td.hour {
+  height: 27px;
+  line-height: 27px;
+}
+.bootstrap-datetimepicker-widget .timepicker .timepicker-picker a.btn {
+  color: #007bff;
+  color: var(--blue, #007bff);
+}
+.bootstrap-datetimepicker-widget .timepicker .timepicker-picker a.btn:hover {
+  color: #0056b3;
+}
+.bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td.day, .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td.hour, .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td.minute, .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td.second,
+.bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=incrementHours], .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=incrementMinutes], .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=incrementSeconds],
+.bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=decrementHours], .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=decrementMinutes], .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=decrementSeconds],
+.bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=showHours], .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=showMinutes], .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=showSeconds],
+.bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=togglePeriod] {
+  pointer-events: none;
+  cursor: default;
+}
+.bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td.day:hover, .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td.hour:hover, .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td.minute:hover, .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td.second:hover,
+.bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=incrementHours]:hover, .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=incrementMinutes]:hover, .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=incrementSeconds]:hover,
+.bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=decrementHours]:hover, .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=decrementMinutes]:hover, .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=decrementSeconds]:hover,
+.bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=showHours]:hover, .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=showMinutes]:hover, .bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=showSeconds]:hover,
+.bootstrap-datetimepicker-widget.bootstrap-datetimepicker-widget-readonly table td [data-action=togglePeriod]:hover {
+  background: none;
+}
+
+.input-group [data-toggle=datetimepicker] {
+  cursor: pointer;
+}
\ No newline at end of file
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/tempusdominus-bootstrap-4.min.css b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/tempusdominus-bootstrap-4.min.css
new file mode 100644
index 0000000..3c54112
--- /dev/null
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/css/tempusdominus-bootstrap-4.min.css
@@ -0,0 +1,5 @@
+/*!@preserve
+ * Tempus Dominus Bootstrap4 v5.39.0 (https://tempusdominus.github.io/bootstrap-4/)
+ * Copyright 2016-2020 Jonathan Peterson and contributors
+ * Licensed under MIT (https://github.com/tempusdominus/bootstrap-3/blob/master/LICENSE)
+ */.bootstrap-datetimepicker-widget .btn[data-action=clear]::after,.bootstrap-datetimepicker-widget .btn[data-action=decrementHours]::after,.bootstrap-datetimepicker-widget .btn[data-action=decrementMinutes]::after,.bootstrap-datetimepicker-widget .btn[data-action=incrementHours]::after,.bootstrap-datetimepicker-widget .btn[data-action=incrementMinutes]::after,.bootstrap-datetimepicker-widget .btn[data-action=showHours]::after,.bootstrap-datetimepicker-widget .btn[data-action=showMinutes [...]
\ No newline at end of file
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/js/bootstrap-datetimepicker.js b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/js/bootstrap-datetimepicker.js
deleted file mode 100644
index edd9c53..0000000
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/js/bootstrap-datetimepicker.js
+++ /dev/null
@@ -1,1703 +0,0 @@
-/*
- //! version : 4.0.0
- =========================================================
- bootstrap-datetimejs
- https://github.com/Eonasdan/bootstrap-datetimepicker
- =========================================================
- The MIT License (MIT)
-
- Copyright (c) 2015 Jonathan Peterson
-
- Permission is hereby granted, free of charge, to any person obtaining a copy
- of this software and associated documentation files (the "Software"), to deal
- in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
-
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- THE SOFTWARE.
- */
-(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // AMD is used - Register as an anonymous module.
-        define(['jquery', 'moment'], factory);
-    } else if (typeof exports === 'object') {
-        factory(require('jquery'), require('moment'));
-    } else {
-        // Neither AMD nor CommonJS used. Use global variables.
-        if (!jQuery) {
-            throw 'bootstrap-datetimepicker requires jQuery to be loaded first';
-        }
-        if (!moment) {
-            throw 'bootstrap-datetimepicker requires Moment.js to be loaded first';
-        }
-        factory(jQuery, moment);
-    }
-}(function ($, moment) {
-    'use strict';
-    if (!moment) {
-        throw new Error('bootstrap-datetimepicker requires Moment.js to be loaded first');
-    }
-
-    var dateTimePicker = function (element, options) {
-        var picker = {},
-            date = moment(),
-            viewDate = date.clone(),
-            unset = true,
-            input,
-            component = false,
-            widget = false,
-            use24Hours,
-            minViewModeNumber = 0,
-            actualFormat,
-            parseFormats,
-            currentViewMode,
-            datePickerModes = [
-                {
-                    clsName: 'days',
-                    navFnc: 'M',
-                    navStep: 1
-                },
-                {
-                    clsName: 'months',
-                    navFnc: 'y',
-                    navStep: 1
-                },
-                {
-                    clsName: 'years',
-                    navFnc: 'y',
-                    navStep: 10
-                }
-            ],
-            viewModes = ['days', 'months', 'years'],
-            verticalModes = ['top', 'bottom', 'auto'],
-            horizontalModes = ['left', 'right', 'auto'],
-            toolbarPlacements = ['default', 'top', 'bottom'],
-
-            /********************************************************************************
-             *
-             * Private functions
-             *
-             ********************************************************************************/
-            isEnabled = function (granularity) {
-                if (typeof granularity !== 'string' || granularity.length > 1) {
-                    throw new TypeError('isEnabled expects a single character string parameter');
-                }
-                switch (granularity) {
-                    case 'y':
-                        return actualFormat.indexOf('Y') !== -1;
-                    case 'M':
-                        return actualFormat.indexOf('M') !== -1;
-                    case 'd':
-                        return actualFormat.toLowerCase().indexOf('d') !== -1;
-                    case 'h':
-                    case 'H':
-                        return actualFormat.toLowerCase().indexOf('h') !== -1;
-                    case 'm':
-                        return actualFormat.indexOf('m') !== -1;
-                    case 's':
-                        return actualFormat.indexOf('s') !== -1;
-                    default:
-                        return false;
-                }
-            },
-
-            hasTime = function () {
-                return (isEnabled('h') || isEnabled('m') || isEnabled('s'));
-            },
-
-            hasDate = function () {
-                return (isEnabled('y') || isEnabled('M') || isEnabled('d'));
-            },
-
-            getDatePickerTemplate = function () {
-                var headTemplate = $('<thead>')
-                        .append($('<tr>')
-                            .append($('<th>').addClass('prev').attr('data-action', 'previous')
-                                .append($('<span>').addClass(options.icons.previous))
-                                )
-                            .append($('<th>').addClass('picker-switch').attr('data-action', 'pickerSwitch').attr('colspan', (options.calendarWeeks ? '6' : '5')))
-                            .append($('<th>').addClass('next').attr('data-action', 'next')
-                                .append($('<span>').addClass(options.icons.next))
-                                )
-                            ),
-                    contTemplate = $('<tbody>')
-                        .append($('<tr>')
-                            .append($('<td>').attr('colspan', (options.calendarWeeks ? '8' : '7')))
-                            );
-
-                return [
-                    $('<div>').addClass('datepicker-days')
-                        .append($('<table>').addClass('table-condensed')
-                            .append(headTemplate)
-                            .append($('<tbody>'))
-                            ),
-                    $('<div>').addClass('datepicker-months')
-                        .append($('<table>').addClass('table-condensed')
-                            .append(headTemplate.clone())
-                            .append(contTemplate.clone())
-                            ),
-                    $('<div>').addClass('datepicker-years')
-                        .append($('<table>').addClass('table-condensed')
-                            .append(headTemplate.clone())
-                            .append(contTemplate.clone())
-                            )
-                ];
-            },
-
-            getTimePickerMainTemplate = function () {
-                var topRow = $('<tr>'),
-                    middleRow = $('<tr>'),
-                    bottomRow = $('<tr>');
-
-                if (isEnabled('h')) {
-                    topRow.append($('<td>')
-                        .append($('<a>').attr('href', '#').addClass('btn').attr('data-action', 'incrementHours')
-                            .append($('<span>').addClass(options.icons.up))));
-                    middleRow.append($('<td>')
-                        .append($('<span>').addClass('timepicker-hour').attr('data-time-component', 'hours').attr('data-action', 'showHours')));
-                    bottomRow.append($('<td>')
-                        .append($('<a>').attr('href', '#').addClass('btn').attr('data-action', 'decrementHours')
-                            .append($('<span>').addClass(options.icons.down))));
-                }
-                if (isEnabled('m')) {
-                    if (isEnabled('h')) {
-                        topRow.append($('<td>').addClass('separator'));
-                        middleRow.append($('<td>').addClass('separator').html(':'));
-                        bottomRow.append($('<td>').addClass('separator'));
-                    }
-                    topRow.append($('<td>')
-                        .append($('<a>').attr('href', '#').addClass('btn').attr('data-action', 'incrementMinutes')
-                            .append($('<span>').addClass(options.icons.up))));
-                    middleRow.append($('<td>')
-                        .append($('<span>').addClass('timepicker-minute').attr('data-time-component', 'minutes').attr('data-action', 'showMinutes')));
-                    bottomRow.append($('<td>')
-                        .append($('<a>').attr('href', '#').addClass('btn').attr('data-action', 'decrementMinutes')
-                            .append($('<span>').addClass(options.icons.down))));
-                }
-                if (isEnabled('s')) {
-                    if (isEnabled('m')) {
-                        topRow.append($('<td>').addClass('separator'));
-                        middleRow.append($('<td>').addClass('separator').html(':'));
-                        bottomRow.append($('<td>').addClass('separator'));
-                    }
-                    topRow.append($('<td>')
-                        .append($('<a>').attr('href', '#').addClass('btn').attr('data-action', 'incrementSeconds')
-                            .append($('<span>').addClass(options.icons.up))));
-                    middleRow.append($('<td>')
-                        .append($('<span>').addClass('timepicker-second').attr('data-time-component', 'seconds').attr('data-action', 'showSeconds')));
-                    bottomRow.append($('<td>')
-                        .append($('<a>').attr('href', '#').addClass('btn').attr('data-action', 'decrementSeconds')
-                            .append($('<span>').addClass(options.icons.down))));
-                }
-
-                if (!use24Hours) {
-                    topRow.append($('<td>').addClass('separator'));
-                    middleRow.append($('<td>')
-                        .append($('<button>').addClass('btn btn-primary').attr('data-action', 'togglePeriod')));
-                    bottomRow.append($('<td>').addClass('separator'));
-                }
-
-                return $('<div>').addClass('timepicker-picker')
-                    .append($('<table>').addClass('table-condensed')
-                        .append([topRow, middleRow, bottomRow]));
-            },
-
-            getTimePickerTemplate = function () {
-                var hoursView = $('<div>').addClass('timepicker-hours')
-                        .append($('<table>').addClass('table-condensed')),
-                    minutesView = $('<div>').addClass('timepicker-minutes')
-                        .append($('<table>').addClass('table-condensed')),
-                    secondsView = $('<div>').addClass('timepicker-seconds')
-                        .append($('<table>').addClass('table-condensed')),
-                    ret = [getTimePickerMainTemplate()];
-
-                if (isEnabled('h')) {
-                    ret.push(hoursView);
-                }
-                if (isEnabled('m')) {
-                    ret.push(minutesView);
-                }
-                if (isEnabled('s')) {
-                    ret.push(secondsView);
-                }
-
-                return ret;
-            },
-
-            getToolbar = function () {
-                var row = [];
-                if (options.showTodayButton) {
-                    row.push($('<td>').append($('<a>').attr('data-action', 'today').append($('<span>').addClass(options.icons.today))));
-                }
-                if (!options.sideBySide && hasDate() && hasTime()) {
-                    row.push($('<td>').append($('<a>').attr('data-action', 'togglePicker').append($('<span>').addClass(options.icons.time))));
-                }
-                if (options.showClear) {
-                    row.push($('<td>').append($('<a>').attr('data-action', 'clear').append($('<span>').addClass(options.icons.clear))));
-                }
-                return $('<table>').addClass('table-condensed').append($('<tbody>').append($('<tr>').append(row)));
-            },
-
-            getTemplate = function () {
-                var template = $('<div>').addClass('bootstrap-datetimepicker-widget dropdown-menu'),
-                    dateView = $('<div>').addClass('datepicker').append(getDatePickerTemplate()),
-                    timeView = $('<div>').addClass('timepicker').append(getTimePickerTemplate()),
-                    content = $('<ul>').addClass('list-unstyled'),
-                    toolbar = $('<li>').addClass('picker-switch' + (options.collapse ? ' accordion-toggle' : '')).append(getToolbar());
-
-                if (use24Hours) {
-                    template.addClass('usetwentyfour');
-                }
-                if (options.sideBySide && hasDate() && hasTime()) {
-                    template.addClass('timepicker-sbs');
-                    template.append(
-                        $('<div>').addClass('row')
-                            .append(dateView.addClass('col-sm-6'))
-                            .append(timeView.addClass('col-sm-6'))
-                    );
-                    template.append(toolbar);
-                    return template;
-                }
-
-                if (options.toolbarPlacement === 'top') {
-                    content.append(toolbar);
-                }
-                if (hasDate()) {
-                    content.append($('<li>').addClass((options.collapse && hasTime() ? 'collapse in' : '')).append(dateView));
-                }
-                if (options.toolbarPlacement === 'default') {
-                    content.append(toolbar);
-                }
-                if (hasTime()) {
-                    content.append($('<li>').addClass((options.collapse && hasDate() ? 'collapse' : '')).append(timeView));
-                }
-                if (options.toolbarPlacement === 'bottom') {
-                    content.append(toolbar);
-                }
-                return template.append(content);
-            },
-
-            dataToOptions = function () {
-                var eData = element.data(),
-                    dataOptions = {};
-
-                if (eData.dateOptions && eData.dateOptions instanceof Object) {
-                    dataOptions = $.extend(true, dataOptions, eData.dateOptions);
-                }
-
-                $.each(options, function (key) {
-                    var attributeName = 'date' + key.charAt(0).toUpperCase() + key.slice(1);
-                    if (eData[attributeName] !== undefined) {
-                        dataOptions[key] = eData[attributeName];
-                    }
-                });
-                return dataOptions;
-            },
-
-            place = function () {
-                var offset = (component || element).position(),
-                    vertical = options.widgetPositioning.vertical,
-                    horizontal = options.widgetPositioning.horizontal,
-                    parent;
-
-                if (options.widgetParent) {
-                    parent = options.widgetParent.append(widget);
-                } else if (element.is('input')) {
-                    parent = element.parent().append(widget);
-                } else {
-                    parent = element;
-                    element.children().first().after(widget);
-                }
-
-                // Top and bottom logic
-                if (vertical === 'auto') {
-                    if ((component || element).offset().top + widget.height() > $(window).height() + $(window).scrollTop() &&
-                            widget.height() + element.outerHeight() < (component || element).offset().top) {
-                        vertical = 'top';
-                    } else {
-                        vertical = 'bottom';
-                    }
-                }
-
-                // Left and right logic
-                if (horizontal === 'auto') {
-                    if (parent.width() < offset.left + widget.outerWidth()) {
-                        horizontal = 'right';
-                    } else {
-                        horizontal = 'left';
-                    }
-                }
-
-                if (vertical === 'top') {
-                    widget.addClass('top').removeClass('bottom');
-                } else {
-                    widget.addClass('bottom').removeClass('top');
-                }
-
-                if (horizontal === 'right') {
-                    widget.addClass('pull-right');
-                } else {
-                    widget.removeClass('pull-right');
-                }
-
-                // find the first parent element that has a relative css positioning
-                if (parent.css('position') !== 'relative') {
-                    parent = parent.parents().filter(function () {
-                        return $(this).css('position') === 'relative';
-                    }).first();
-                }
-
-                if (parent.length === 0) {
-                    throw new Error('datetimepicker component should be placed within a relative positioned container');
-                }
-
-                widget.css({
-                    top: vertical === 'top' ? 'auto' : offset.top + element.outerHeight(),
-                    bottom: vertical === 'top' ? offset.top + element.outerHeight() : 'auto',
-                    left: horizontal === 'left' ? parent.css('padding-left') : 'auto',
-                    right: horizontal === 'left' ? 'auto' : parent.css('padding-right')
-                });
-            },
-
-            notifyEvent = function (e) {
-                if (e.type === 'dp.change' && ((e.date && e.date.isSame(e.oldDate)) || (!e.date && !e.oldDate))) {
-                    return;
-                }
-                element.trigger(e);
-            },
-
-            showMode = function (dir) {
-                if (!widget) {
-                    return;
-                }
-                if (dir) {
-                    currentViewMode = Math.max(minViewModeNumber, Math.min(2, currentViewMode + dir));
-                }
-                widget.find('.datepicker > div').hide().filter('.datepicker-' + datePickerModes[currentViewMode].clsName).show();
-            },
-
-            fillDow = function () {
-                var row = $('<tr>'),
-                    currentDate = viewDate.clone().startOf('w');
-
-                if (options.calendarWeeks === true) {
-                    row.append($('<th>').addClass('cw').text('#'));
-                }
-
-                while (currentDate.isBefore(viewDate.clone().endOf('w'))) {
-                    row.append($('<th>').addClass('dow').text(currentDate.format('dd')));
-                    currentDate.add(1, 'd');
-                }
-                widget.find('.datepicker-days thead').append(row);
-            },
-
-            isInDisabledDates = function (date) {
-                if (!options.disabledDates) {
-                    return false;
-                }
-                return options.disabledDates[date.format('YYYY-MM-DD')] === true;
-            },
-
-            isInEnabledDates = function (date) {
-                if (!options.enabledDates) {
-                    return false;
-                }
-                return options.enabledDates[date.format('YYYY-MM-DD')] === true;
-            },
-
-            isValid = function (targetMoment, granularity) {
-                if (!targetMoment.isValid()) {
-                    return false;
-                }
-                if (options.disabledDates && isInDisabledDates(targetMoment)) {
-                    return false;
-                }
-                if (options.enabledDates && isInEnabledDates(targetMoment)) {
-                    return true;
-                }
-                if (options.minDate && targetMoment.isBefore(options.minDate, granularity)) {
-                    return false;
-                }
-                if (options.maxDate && targetMoment.isAfter(options.maxDate, granularity)) {
-                    return false;
-                }
-                if (granularity === 'd' && options.daysOfWeekDisabled.indexOf(targetMoment.day()) !== -1) {
-                    return false;
-                }
-                return true;
-            },
-
-            fillMonths = function () {
-                var spans = [],
-                    monthsShort = viewDate.clone().startOf('y').hour(12); // hour is changed to avoid DST issues in some browsers
-                while (monthsShort.isSame(viewDate, 'y')) {
-                    spans.push($('<span>').attr('data-action', 'selectMonth').addClass('month').text(monthsShort.format('MMM')));
-                    monthsShort.add(1, 'M');
-                }
-                widget.find('.datepicker-months td').empty().append(spans);
-            },
-
-            updateMonths = function () {
-                var monthsView = widget.find('.datepicker-months'),
-                    monthsViewHeader = monthsView.find('th'),
-                    months = monthsView.find('tbody').find('span');
-
-                monthsView.find('.disabled').removeClass('disabled');
-
-                if (!isValid(viewDate.clone().subtract(1, 'y'), 'y')) {
-                    monthsViewHeader.eq(0).addClass('disabled');
-                }
-
-                monthsViewHeader.eq(1).text(viewDate.year());
-
-                if (!isValid(viewDate.clone().add(1, 'y'), 'y')) {
-                    monthsViewHeader.eq(2).addClass('disabled');
-                }
-
-                months.removeClass('active');
-                if (date.isSame(viewDate, 'y')) {
-                    months.eq(date.month()).addClass('active');
-                }
-
-                months.each(function (index) {
-                    if (!isValid(viewDate.clone().month(index), 'M')) {
-                        $(this).addClass('disabled');
-                    }
-                });
-            },
-
-            updateYears = function () {
-                var yearsView = widget.find('.datepicker-years'),
-                    yearsViewHeader = yearsView.find('th'),
-                    startYear = viewDate.clone().subtract(5, 'y'),
-                    endYear = viewDate.clone().add(6, 'y'),
-                    html = '';
-
-                yearsView.find('.disabled').removeClass('disabled');
-
-                if (options.minDate && options.minDate.isAfter(startYear, 'y')) {
-                    yearsViewHeader.eq(0).addClass('disabled');
-                }
-
-                yearsViewHeader.eq(1).text(startYear.year() + '-' + endYear.year());
-
-                if (options.maxDate && options.maxDate.isBefore(endYear, 'y')) {
-                    yearsViewHeader.eq(2).addClass('disabled');
-                }
-
-                while (!startYear.isAfter(endYear, 'y')) {
-                    html += '<span data-action="selectYear" class="year' + (startYear.isSame(date, 'y') ? ' active' : '') + (!isValid(startYear, 'y') ? ' disabled' : '') + '">' + startYear.year() + '</span>';
-                    startYear.add(1, 'y');
-                }
-
-                yearsView.find('td').html(html);
-            },
-
-            fillDate = function () {
-                var daysView = widget.find('.datepicker-days'),
-                    daysViewHeader = daysView.find('th'),
-                    currentDate,
-                    html = [],
-                    row,
-                    clsName;
-
-                if (!hasDate()) {
-                    return;
-                }
-
-                daysView.find('.disabled').removeClass('disabled');
-                daysViewHeader.eq(1).text(viewDate.format(options.dayViewHeaderFormat));
-
-                if (!isValid(viewDate.clone().subtract(1, 'M'), 'M')) {
-                    daysViewHeader.eq(0).addClass('disabled');
-                }
-                if (!isValid(viewDate.clone().add(1, 'M'), 'M')) {
-                    daysViewHeader.eq(2).addClass('disabled');
-                }
-
-                currentDate = viewDate.clone().startOf('M').startOf('week');
-
-                while (!viewDate.clone().endOf('M').endOf('w').isBefore(currentDate, 'd')) {
-                    if (currentDate.weekday() === 0) {
-                        row = $('<tr>');
-                        if (options.calendarWeeks) {
-                            row.append('<td class="cw">' + currentDate.week() + '</td>');
-                        }
-                        html.push(row);
-                    }
-                    clsName = '';
-                    if (currentDate.isBefore(viewDate, 'M')) {
-                        clsName += ' old';
-                    }
-                    if (currentDate.isAfter(viewDate, 'M')) {
-                        clsName += ' new';
-                    }
-                    if (currentDate.isSame(date, 'd') && !unset) {
-                        clsName += ' active';
-                    }
-                    if (!isValid(currentDate, 'd')) {
-                        clsName += ' disabled';
-                    }
-                    if (currentDate.isSame(moment(), 'd')) {
-                        clsName += ' today';
-                    }
-                    if (currentDate.day() === 0 || currentDate.day() === 6) {
-                        clsName += ' weekend';
-                    }
-                    if (row) {
-                    	row.append('<td data-action="selectDay" class="day' + clsName + '">' + currentDate.date() + '</td>');	
-                    }
-                    
-                    currentDate.add(1, 'd');
-                }
-
-                daysView.find('tbody').empty().append(html);
-
-                updateMonths();
-
-                updateYears();
-            },
-
-            fillHours = function () {
-                var table = widget.find('.timepicker-hours table'),
-                    currentHour = viewDate.clone().startOf('d'),
-                    html = [],
-                    row = $('<tr>');
-
-                if (viewDate.hour() > 11 && !use24Hours) {
-                    currentHour.hour(12);
-                }
-                while (currentHour.isSame(viewDate, 'd') && (use24Hours || (viewDate.hour() < 12 && currentHour.hour() < 12) || viewDate.hour() > 11)) {
-                    if (currentHour.hour() % 4 === 0) {
-                        row = $('<tr>');
-                        html.push(row);
-                    }
-                    row.append('<td data-action="selectHour" class="hour' + (!isValid(currentHour, 'h') ? ' disabled' : '') + '">' + currentHour.format(use24Hours ? 'HH' : 'hh') + '</td>');
-                    currentHour.add(1, 'h');
-                }
-                table.empty().append(html);
-            },
-
-            fillMinutes = function () {
-                var table = widget.find('.timepicker-minutes table'),
-                    currentMinute = viewDate.clone().startOf('h'),
-                    html = [],
-                    row = $('<tr>'),
-                    step = options.stepping === 1 ? 5 : options.stepping;
-
-                while (viewDate.isSame(currentMinute, 'h')) {
-                    if (currentMinute.minute() % (step * 4) === 0) {
-                        row = $('<tr>');
-                        html.push(row);
-                    }
-                    row.append('<td data-action="selectMinute" class="minute' + (!isValid(currentMinute, 'm') ? ' disabled' : '') + '">' + currentMinute.format('mm') + '</td>');
-                    currentMinute.add(step, 'm');
-                }
-                table.empty().append(html);
-            },
-
-            fillSeconds = function () {
-                var table = widget.find('.timepicker-seconds table'),
-                    currentSecond = viewDate.clone().startOf('m'),
-                    html = [],
-                    row = $('<tr>');
-
-                while (viewDate.isSame(currentSecond, 'm')) {
-                    if (currentSecond.second() % 20 === 0) {
-                        row = $('<tr>');
-                        html.push(row);
-                    }
-                    row.append('<td data-action="selectSecond" class="second' + (!isValid(currentSecond, 's') ? ' disabled' : '') + '">' + currentSecond.format('ss') + '</td>');
-                    currentSecond.add(5, 's');
-                }
-
-                table.empty().append(html);
-            },
-
-            fillTime = function () {
-                var timeComponents = widget.find('.timepicker span[data-time-component]');
-                if (!use24Hours) {
-                    widget.find('.timepicker [data-action=togglePeriod]').text(date.format('A'));
-                }
-                timeComponents.filter('[data-time-component=hours]').text(date.format(use24Hours ? 'HH' : 'hh'));
-                timeComponents.filter('[data-time-component=minutes]').text(date.format('mm'));
-                timeComponents.filter('[data-time-component=seconds]').text(date.format('ss'));
-
-                fillHours();
-                fillMinutes();
-                fillSeconds();
-            },
-
-            update = function () {
-                if (!widget) {
-                    return;
-                }
-                fillDate();
-                fillTime();
-            },
-
-            setValue = function (targetMoment) {
-                var oldDate = unset ? null : date;
-
-                // case of calling setValue(null or false)
-                if (!targetMoment) {
-                    unset = true;
-                    input.val('');
-                    element.data('date', '');
-                    notifyEvent({
-                        type: 'dp.change',
-                        date: null,
-                        oldDate: oldDate
-                    });
-                    update();
-                    return;
-                }
-
-                targetMoment = targetMoment.clone().locale(options.locale);
-
-                if (options.stepping !== 1) {
-                    targetMoment.minutes((Math.round(targetMoment.minutes() / options.stepping) * options.stepping) % 60).seconds(0);
-                }
-
-                if (isValid(targetMoment)) {
-                    date = targetMoment;
-                    viewDate = date.clone();
-                    input.val(date.format(actualFormat));
-                    element.data('date', date.format(actualFormat));
-                    update();
-                    unset = false;
-                    notifyEvent({
-                        type: 'dp.change',
-                        date: date.clone(),
-                        oldDate: oldDate
-                    });
-                } else {
-                    input.val(unset ? '' : date.format(actualFormat));
-                    notifyEvent({
-                        type: 'dp.error',
-                        date: targetMoment
-                    });
-                }
-            },
-
-            hide = function () {
-                var transitioning = false;
-                if (!widget) {
-                    return picker;
-                }
-                // Ignore event if in the middle of a picker transition
-                widget.find('.collapse').each(function () {
-                    var collapseData = $(this).data('collapse');
-                    if (collapseData && collapseData.transitioning) {
-                        transitioning = true;
-                        return false;
-                    }
-                });
-                if (transitioning) {
-                    return picker;
-                }
-                if (component && component.hasClass('btn')) {
-                    component.toggleClass('active');
-                }
-                widget.hide();
-
-                $(window).off('resize', place);
-                widget.off('click', '[data-action]');
-                widget.off('mousedown', false);
-
-                widget.remove();
-                widget = false;
-
-                notifyEvent({
-                    type: 'dp.hide',
-                    date: date.clone()
-                });
-                return picker;
-            },
-
-            /********************************************************************************
-             *
-             * Widget UI interaction functions
-             *
-             ********************************************************************************/
-            actions = {
-                next: function () {
-                    viewDate.add(datePickerModes[currentViewMode].navStep, datePickerModes[currentViewMode].navFnc);
-                    fillDate();
-                },
-
-                previous: function () {
-                    viewDate.subtract(datePickerModes[currentViewMode].navStep, datePickerModes[currentViewMode].navFnc);
-                    fillDate();
-                },
-
-                pickerSwitch: function () {
-                    showMode(1);
-                },
-
-                selectMonth: function (e) {
-                    var month = $(e.target).closest('tbody').find('span').index($(e.target));
-                    viewDate.month(month);
-                    if (currentViewMode === minViewModeNumber) {
-                        setValue(date.clone().year(viewDate.year()).month(viewDate.month()));
-                        hide();
-                    }
-                    showMode(-1);
-                    fillDate();
-                },
-
-                selectYear: function (e) {
-                    var year = parseInt($(e.target).text(), 10) || 0;
-                    viewDate.year(year);
-                    if (currentViewMode === minViewModeNumber) {
-                        setValue(date.clone().year(viewDate.year()));
-                        hide();
-                    }
-                    showMode(-1);
-                    fillDate();
-                },
-
-                selectDay: function (e) {
-                    var day = viewDate.clone();
-                    if ($(e.target).is('.old')) {
-                        day.subtract(1, 'M');
-                    }
-                    if ($(e.target).is('.new')) {
-                        day.add(1, 'M');
-                    }
-                    setValue(day.date(parseInt($(e.target).text(), 10)));
-                    if (!hasTime() && !options.keepOpen) {
-                        hide();
-                    }
-                },
-
-                incrementHours: function () {
-                    setValue(date.clone().add(1, 'h'));
-                },
-
-                incrementMinutes: function () {
-                    setValue(date.clone().add(options.stepping, 'm'));
-                },
-
-                incrementSeconds: function () {
-                    setValue(date.clone().add(1, 's'));
-                },
-
-                decrementHours: function () {
-                    setValue(date.clone().subtract(1, 'h'));
-                },
-
-                decrementMinutes: function () {
-                    setValue(date.clone().subtract(options.stepping, 'm'));
-                },
-
-                decrementSeconds: function () {
-                    setValue(date.clone().subtract(1, 's'));
-                },
-
-                togglePeriod: function () {
-                    setValue(date.clone().add((date.hours() >= 12) ? -12 : 12, 'h'));
-                },
-
-                togglePicker: function (e) {
-                    var $this = $(e.target),
-                        $parent = $this.closest('ul'),
-                        expanded = $parent.find('.in'),
-                        closed = $parent.find('.collapse:not(.in)'),
-                        collapseData;
-
-                    if (expanded && expanded.length) {
-                        collapseData = expanded.data('collapse');
-                        if (collapseData && collapseData.transitioning) {
-                            return;
-                        }
-                        expanded.collapse('hide');
-                        closed.collapse('show');
-                        if ($this.is('span')) {
-                            $this.toggleClass(options.icons.time + ' ' + options.icons.date);
-                        } else {
-                            $this.find('span').toggleClass(options.icons.time + ' ' + options.icons.date);
-                        }
-
-                        // NOTE: uncomment if toggled state will be restored in show()
-                        //if (component) {
-                        //    component.find('span').toggleClass(options.icons.time + ' ' + options.icons.date);
-                        //}
-                    }
-                },
-
-                showPicker: function () {
-                    widget.find('.timepicker > div:not(.timepicker-picker)').hide();
-                    widget.find('.timepicker .timepicker-picker').show();
-                },
-
-                showHours: function () {
-                    widget.find('.timepicker .timepicker-picker').hide();
-                    widget.find('.timepicker .timepicker-hours').show();
-                },
-
-                showMinutes: function () {
-                    widget.find('.timepicker .timepicker-picker').hide();
-                    widget.find('.timepicker .timepicker-minutes').show();
-                },
-
-                showSeconds: function () {
-                    widget.find('.timepicker .timepicker-picker').hide();
-                    widget.find('.timepicker .timepicker-seconds').show();
-                },
-
-                selectHour: function (e) {
-                    var hour = parseInt($(e.target).text(), 10);
-
-                    if (!use24Hours) {
-                        if (date.hours() >= 12) {
-                            if (hour !== 12) {
-                                hour += 12;
-                            }
-                        } else {
-                            if (hour === 12) {
-                                hour = 0;
-                            }
-                        }
-                    }
-                    setValue(date.clone().hours(hour));
-                    actions.showPicker.call(picker);
-                },
-
-                selectMinute: function (e) {
-                    setValue(date.clone().minutes(parseInt($(e.target).text(), 10)));
-                    actions.showPicker.call(picker);
-                },
-
-                selectSecond: function (e) {
-                    setValue(date.clone().seconds(parseInt($(e.target).text(), 10)));
-                    actions.showPicker.call(picker);
-                },
-
-                clear: function () {
-                    setValue(null);
-                },
-
-                today: function () {
-                    setValue(moment());
-                }
-            },
-
-            doAction = function (e) {
-                if ($(e.currentTarget).is('.disabled')) {
-                    return false;
-                }
-                actions[$(e.currentTarget).data('action')].apply(picker, arguments);
-                return false;
-            },
-
-            show = function () {
-                var currentMoment,
-                    useCurrentGranularity = {
-                        'year': function (m) {
-                            return m.month(0).date(1).hours(0).seconds(0).minutes(0);
-                        },
-                        'month': function (m) {
-                            return m.date(1).hours(0).seconds(0).minutes(0);
-                        },
-                        'day': function (m) {
-                            return m.hours(0).seconds(0).minutes(0);
-                        },
-                        'hour': function (m) {
-                            return m.seconds(0).minutes(0);
-                        },
-                        'minute': function (m) {
-                            return m.seconds(0);
-                        }
-                    };
-
-                if (input.prop('disabled') || input.prop('readonly') || widget) {
-                    return picker;
-                }
-                if (options.useCurrent && unset) { // && input.val().trim().length !== 0) { this broke the jasmine test
-                    currentMoment = moment();
-                    if (typeof options.useCurrent === 'string') {
-                        currentMoment = useCurrentGranularity[options.useCurrent](currentMoment);
-                    }
-                    setValue(currentMoment);
-                }
-
-                widget = getTemplate();
-
-                fillDow();
-                fillMonths();
-
-                widget.find('.timepicker-hours').hide();
-                widget.find('.timepicker-minutes').hide();
-                widget.find('.timepicker-seconds').hide();
-
-                update();
-                showMode();
-
-                $(window).on('resize', place);
-                widget.on('click', '[data-action]', doAction); // this handles clicks on the widget
-                widget.on('mousedown', false);
-
-                if (component && component.hasClass('btn')) {
-                    component.toggleClass('active');
-                }
-                widget.show();
-                place();
-
-                if (!input.is(':focus')) {
-                    input.focus();
-                }
-
-                notifyEvent({
-                    type: 'dp.show'
-                });
-                return picker;
-            },
-
-            toggle = function () {
-                return (widget ? hide() : show());
-            },
-
-            parseInputDate = function (date) {
-                if (moment.isMoment(date) || date instanceof Date) {
-                    date = moment(date);
-                } else {
-                    date = moment(date, parseFormats, options.useStrict);
-                }
-                date.locale(options.locale);
-                return date;
-            },
-
-            keydown = function (e) {
-                if (e.keyCode === 27) { // allow escape to hide picker
-                    hide();
-                }
-            },
-
-            change = function (e) {
-                var val = $(e.target).val().trim(),
-                    parsedDate = val ? parseInputDate(val) : null;
-                setValue(parsedDate);
-                e.stopImmediatePropagation();
-                return false;
-            },
-
-            attachDatePickerElementEvents = function () {
-                input.on({
-                    'change': change,
-                    'blur': hide,
-                    'keydown': keydown
-                });
-
-                if (element.is('input')) {
-                    input.on({
-                        'focus': show
-                    });
-                } else if (component) {
-                    component.on('click', toggle);
-                    component.on('mousedown', false);
-                }
-            },
-
-            detachDatePickerElementEvents = function () {
-                input.off({
-                    'change': change,
-                    'blur': hide,
-                    'keydown': keydown
-                });
-
-                if (element.is('input')) {
-                    input.off({
-                        'focus': show
-                    });
-                } else if (component) {
-                    component.off('click', toggle);
-                    component.off('mousedown', false);
-                }
-            },
-
-            indexGivenDates = function (givenDatesArray) {
-                // Store given enabledDates and disabledDates as keys.
-                // This way we can check their existence in O(1) time instead of looping through whole array.
-                // (for example: options.enabledDates['2014-02-27'] === true)
-                var givenDatesIndexed = {};
-                $.each(givenDatesArray, function () {
-                    var dDate = parseInputDate(this);
-                    if (dDate.isValid()) {
-                        givenDatesIndexed[dDate.format('YYYY-MM-DD')] = true;
-                    }
-                });
-                return (Object.keys(givenDatesIndexed).length) ? givenDatesIndexed : false;
-            },
-
-            initFormatting = function () {
-                var format = options.format || 'L LT';
-
-                actualFormat = format.replace(/(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g, function (input) {
-                    return date.localeData().longDateFormat(input) || input;
-                });
-
-                parseFormats = options.extraFormats ? options.extraFormats.slice() : [];
-                if (parseFormats.indexOf(format) < 0 && parseFormats.indexOf(actualFormat) < 0) {
-                    parseFormats.push(actualFormat);
-                }
-
-                use24Hours = (actualFormat.toLowerCase().indexOf('a') < 1 && actualFormat.indexOf('h') < 1);
-
-                if (isEnabled('y')) {
-                    minViewModeNumber = 2;
-                }
-                if (isEnabled('M')) {
-                    minViewModeNumber = 1;
-                }
-                if (isEnabled('d')) {
-                    minViewModeNumber = 0;
-                }
-
-                currentViewMode = Math.max(minViewModeNumber, currentViewMode);
-
-                if (!unset) {
-                    setValue(date);
-                }
-            };
-
-        /********************************************************************************
-         *
-         * Public API functions
-         * =====================
-         *
-         * Important: Do not expose direct references to private objects or the options
-         * object to the outer world. Always return a clone when returning values or make
-         * a clone when setting a private variable.
-         *
-         ********************************************************************************/
-        picker.destroy = function () {
-            hide();
-            detachDatePickerElementEvents();
-            element.removeData('DateTimePicker');
-            element.removeData('date');
-        };
-
-        picker.toggle = toggle;
-
-        picker.show = show;
-
-        picker.hide = hide;
-
-        picker.disable = function () {
-            hide();
-            if (component && component.hasClass('btn')) {
-                component.addClass('disabled');
-            }
-            input.prop('disabled', true);
-            return picker;
-        };
-
-        picker.enable = function () {
-            if (component && component.hasClass('btn')) {
-                component.removeClass('disabled');
-            }
-            input.prop('disabled', false);
-            return picker;
-        };
-
-        picker.options = function (newOptions) {
-            if (arguments.length === 0) {
-                return $.extend(true, {}, options);
-            }
-
-            if (!(newOptions instanceof Object)) {
-                throw new TypeError('options() options parameter should be an object');
-            }
-            $.extend(true, options, newOptions);
-            $.each(options, function (key, value) {
-                if (picker[key] !== undefined) {
-                    picker[key](value);
-                } else {
-                    throw new TypeError('option ' + key + ' is not recognized!');
-                }
-            });
-            return picker;
-        };
-
-        picker.date = function (newDate) {
-            if (arguments.length === 0) {
-                if (unset) {
-                    return null;
-                }
-                return date.clone();
-            }
-
-            if (newDate !== null && typeof newDate !== 'string' && !moment.isMoment(newDate) && !(newDate instanceof Date)) {
-                throw new TypeError('date() parameter must be one of [null, string, moment or Date]');
-            }
-
-            setValue(newDate === null ? null : parseInputDate(newDate));
-            return picker;
-        };
-
-        picker.format = function (newFormat) {
-            if (arguments.length === 0) {
-                return options.format;
-            }
-
-            if ((typeof newFormat !== 'string') && ((typeof newFormat !== 'boolean') || (newFormat !== false))) {
-                throw new TypeError('format() expects a sting or boolean:false parameter ' + newFormat);
-            }
-
-            options.format = newFormat;
-            if (actualFormat) {
-                initFormatting(); // reinit formatting
-            }
-            return picker;
-        };
-
-        picker.dayViewHeaderFormat = function (newFormat) {
-            if (arguments.length === 0) {
-                return options.dayViewHeaderFormat;
-            }
-
-            if (typeof newFormat !== 'string') {
-                throw new TypeError('dayViewHeaderFormat() expects a string parameter');
-            }
-
-            options.dayViewHeaderFormat = newFormat;
-            return picker;
-        };
-
-        picker.extraFormats = function (formats) {
-            if (arguments.length === 0) {
-                return options.extraFormats;
-            }
-
-            if (formats !== false && !(formats instanceof Array)) {
-                throw new TypeError('extraFormats() expects an array or false parameter');
-            }
-
-            options.extraFormats = formats;
-            if (parseFormats) {
-                initFormatting(); // reinit formatting
-            }
-            return picker;
-        };
-
-        picker.disabledDates = function (dates) {
-            if (arguments.length === 0) {
-                return (options.disabledDates ? $.extend({}, options.disabledDates) : options.disabledDates);
-            }
-
-            if (!dates) {
-                options.disabledDates = false;
-                update();
-                return picker;
-            }
-            if (!(dates instanceof Array)) {
-                throw new TypeError('disabledDates() expects an array parameter');
-            }
-            options.disabledDates = indexGivenDates(dates);
-            options.enabledDates = false;
-            update();
-            return picker;
-        };
-
-        picker.enabledDates = function (dates) {
-            if (arguments.length === 0) {
-                return (options.enabledDates ? $.extend({}, options.enabledDates) : options.enabledDates);
-            }
-
-            if (!dates) {
-                options.enabledDates = false;
-                update();
-                return picker;
-            }
-            if (!(dates instanceof Array)) {
-                throw new TypeError('enabledDates() expects an array parameter');
-            }
-            options.enabledDates = indexGivenDates(dates);
-            options.disabledDates = false;
-            update();
-            return picker;
-        };
-
-        picker.daysOfWeekDisabled = function (daysOfWeekDisabled) {
-            if (arguments.length === 0) {
-                return options.daysOfWeekDisabled.splice(0);
-            }
-
-            if (!(daysOfWeekDisabled instanceof Array)) {
-                throw new TypeError('daysOfWeekDisabled() expects an array parameter');
-            }
-            options.daysOfWeekDisabled = daysOfWeekDisabled.reduce(function (previousValue, currentValue) {
-                currentValue = parseInt(currentValue, 10);
-                if (currentValue > 6 || currentValue < 0 || isNaN(currentValue)) {
-                    return previousValue;
-                }
-                if (previousValue.indexOf(currentValue) === -1) {
-                    previousValue.push(currentValue);
-                }
-                return previousValue;
-            }, []).sort();
-            update();
-            return picker;
-        };
-
-        picker.maxDate = function (date) {
-            if (arguments.length === 0) {
-                return options.maxDate ? options.maxDate.clone() : options.maxDate;
-            }
-
-            if ((typeof date === 'boolean') && date === false) {
-                options.maxDate = false;
-                update();
-                return picker;
-            }
-
-            var parsedDate = parseInputDate(date);
-
-            if (!parsedDate.isValid()) {
-                throw new TypeError('maxDate() Could not parse date parameter: ' + date);
-            }
-            if (options.minDate && parsedDate.isBefore(options.minDate)) {
-                throw new TypeError('maxDate() date parameter is before options.minDate: ' + parsedDate.format(actualFormat));
-            }
-            options.maxDate = parsedDate;
-            if (options.maxDate.isBefore(date)) {
-                setValue(options.maxDate);
-            }
-            update();
-            return picker;
-        };
-
-        picker.minDate = function (date) {
-            if (arguments.length === 0) {
-                return options.minDate ? options.minDate.clone() : options.minDate;
-            }
-
-            if ((typeof date === 'boolean') && date === false) {
-                options.minDate = false;
-                update();
-                return picker;
-            }
-
-            var parsedDate = parseInputDate(date);
-
-            if (!parsedDate.isValid()) {
-                throw new TypeError('minDate() Could not parse date parameter: ' + date);
-            }
-            if (options.maxDate && parsedDate.isAfter(options.maxDate)) {
-                throw new TypeError('minDate() date parameter is after options.maxDate: ' + parsedDate.format(actualFormat));
-            }
-            options.minDate = parsedDate;
-            if (options.minDate.isAfter(date)) {
-                setValue(options.minDate);
-            }
-            update();
-            return picker;
-        };
-
-        picker.defaultDate = function (defaultDate) {
-            if (arguments.length === 0) {
-                return options.defaultDate ? options.defaultDate.clone() : options.defaultDate;
-            }
-            if (!defaultDate) {
-                options.defaultDate = false;
-                return picker;
-            }
-            var parsedDate = parseInputDate(defaultDate);
-            if (!parsedDate.isValid()) {
-                throw new TypeError('defaultDate() Could not parse date parameter: ' + defaultDate);
-            }
-            if (!isValid(parsedDate)) {
-                throw new TypeError('defaultDate() date passed is invalid according to component setup validations');
-            }
-
-            options.defaultDate = parsedDate;
-
-            if (options.defaultDate && input.val().trim() === '') {
-                setValue(options.defaultDate);
-            }
-            return picker;
-        };
-
-        picker.locale = function (locale) {
-            if (arguments.length === 0) {
-                return options.locale;
-            }
-
-            if (!moment.localeData(locale)) {
-                throw new TypeError('locale() locale ' + locale + ' is not loaded from moment locales!');
-            }
-
-            options.locale = locale;
-            date.locale(options.locale);
-            viewDate.locale(options.locale);
-
-            if (actualFormat) {
-                initFormatting(); // reinit formatting
-            }
-            if (widget) {
-                hide();
-                show();
-            }
-            return picker;
-        };
-
-        picker.stepping = function (stepping) {
-            if (arguments.length === 0) {
-                return options.stepping;
-            }
-
-            stepping = parseInt(stepping, 10);
-            if (isNaN(stepping) || stepping < 1) {
-                stepping = 1;
-            }
-            options.stepping = stepping;
-            return picker;
-        };
-
-        picker.useCurrent = function (useCurrent) {
-            var useCurrentOptions = ['year', 'month', 'day', 'hour', 'minute'];
-            if (arguments.length === 0) {
-                return options.useCurrent;
-            }
-
-            if ((typeof useCurrent !== 'boolean') && (typeof useCurrent !== 'string')) {
-                throw new TypeError('useCurrent() expects a boolean or string parameter');
-            }
-            if (typeof useCurrent === 'string' && useCurrentOptions.indexOf(useCurrent.toLowerCase()) === -1) {
-                throw new TypeError('useCurrent() expects a string parameter of ' + useCurrentOptions.join(', '));
-            }
-            options.useCurrent = useCurrent;
-            return picker;
-        };
-
-        picker.collapse = function (collapse) {
-            if (arguments.length === 0) {
-                return options.collapse;
-            }
-
-            if (typeof collapse !== 'boolean') {
-                throw new TypeError('collapse() expects a boolean parameter');
-            }
-            if (options.collapse === collapse) {
-                return picker;
-            }
-            options.collapse = collapse;
-            if (widget) {
-                hide();
-                show();
-            }
-            return picker;
-        };
-
-        picker.icons = function (icons) {
-            if (arguments.length === 0) {
-                return $.extend({}, options.icons);
-            }
-
-            if (!(icons instanceof Object)) {
-                throw new TypeError('icons() expects parameter to be an Object');
-            }
-            $.extend(options.icons, icons);
-            if (widget) {
-                hide();
-                show();
-            }
-            return picker;
-        };
-
-        picker.useStrict = function (useStrict) {
-            if (arguments.length === 0) {
-                return options.useStrict;
-            }
-
-            if (typeof useStrict !== 'boolean') {
-                throw new TypeError('useStrict() expects a boolean parameter');
-            }
-            options.useStrict = useStrict;
-            return picker;
-        };
-
-        picker.sideBySide = function (sideBySide) {
-            if (arguments.length === 0) {
-                return options.sideBySide;
-            }
-
-            if (typeof sideBySide !== 'boolean') {
-                throw new TypeError('sideBySide() expects a boolean parameter');
-            }
-            options.sideBySide = sideBySide;
-            if (widget) {
-                hide();
-                show();
-            }
-            return picker;
-        };
-
-        picker.viewMode = function (newViewMode) {
-            if (arguments.length === 0) {
-                return options.viewMode;
-            }
-
-            if (typeof newViewMode !== 'string') {
-                throw new TypeError('viewMode() expects a string parameter');
-            }
-
-            if (viewModes.indexOf(newViewMode) === -1) {
-                throw new TypeError('viewMode() parameter must be one of (' + viewModes.join(', ') + ') value');
-            }
-
-            options.viewMode = newViewMode;
-            currentViewMode = Math.max(viewModes.indexOf(newViewMode), minViewModeNumber);
-
-            showMode();
-            return picker;
-        };
-
-        picker.toolbarPlacement = function (toolbarPlacement) {
-            if (arguments.length === 0) {
-                return options.toolbarPlacement;
-            }
-
-            if (typeof toolbarPlacement !== 'string') {
-                throw new TypeError('toolbarPlacement() expects a string parameter');
-            }
-            if (toolbarPlacements.indexOf(toolbarPlacement) === -1) {
-                throw new TypeError('toolbarPlacement() parameter must be one of (' + toolbarPlacements.join(', ') + ') value');
-            }
-            options.toolbarPlacement = toolbarPlacement;
-
-            if (widget) {
-                hide();
-                show();
-            }
-            return picker;
-        };
-
-        picker.widgetPositioning = function (widgetPositioning) {
-            if (arguments.length === 0) {
-                return $.extend({}, options.widgetPositioning);
-            }
-
-            if (({}).toString.call(widgetPositioning) !== '[object Object]') {
-                throw new TypeError('widgetPositioning() expects an object variable');
-            }
-            if (widgetPositioning.horizontal) {
-                if (typeof widgetPositioning.horizontal !== 'string') {
-                    throw new TypeError('widgetPositioning() horizontal variable must be a string');
-                }
-                widgetPositioning.horizontal = widgetPositioning.horizontal.toLowerCase();
-                if (horizontalModes.indexOf(widgetPositioning.horizontal) === -1) {
-                    throw new TypeError('widgetPositioning() expects horizontal parameter to be one of (' + horizontalModes.join(', ') + ')');
-                }
-                options.widgetPositioning.horizontal = widgetPositioning.horizontal;
-            }
-            if (widgetPositioning.vertical) {
-                if (typeof widgetPositioning.vertical !== 'string') {
-                    throw new TypeError('widgetPositioning() vertical variable must be a string');
-                }
-                widgetPositioning.vertical = widgetPositioning.vertical.toLowerCase();
-                if (verticalModes.indexOf(widgetPositioning.vertical) === -1) {
-                    throw new TypeError('widgetPositioning() expects vertical parameter to be one of (' + verticalModes.join(', ') + ')');
-                }
-                options.widgetPositioning.vertical = widgetPositioning.vertical;
-            }
-            update();
-            return picker;
-        };
-
-        picker.calendarWeeks = function (showCalendarWeeks) {
-            if (arguments.length === 0) {
-                return options.calendarWeeks;
-            }
-
-            if (typeof showCalendarWeeks !== 'boolean') {
-                throw new TypeError('calendarWeeks() expects parameter to be a boolean value');
-            }
-
-            options.calendarWeeks = showCalendarWeeks;
-            update();
-            return picker;
-        };
-
-        picker.showTodayButton = function (showTodayButton) {
-            if (arguments.length === 0) {
-                return options.showTodayButton;
-            }
-
-            if (typeof showTodayButton !== 'boolean') {
-                throw new TypeError('showTodayButton() expects a boolean parameter');
-            }
-
-            options.showTodayButton = showTodayButton;
-            if (widget) {
-                hide();
-                show();
-            }
-            return picker;
-        };
-
-        picker.showClear = function (showClear) {
-            if (arguments.length === 0) {
-                return options.showClear;
-            }
-
-            if (typeof showClear !== 'boolean') {
-                throw new TypeError('showClear() expects a boolean parameter');
-            }
-
-            options.showClear = showClear;
-            if (widget) {
-                hide();
-                show();
-            }
-            return picker;
-        };
-
-        picker.widgetParent = function (widgetParent) {
-            if (arguments.length === 0) {
-                return options.widgetParent;
-            }
-
-            if (typeof widgetParent === 'string') {
-                widgetParent = $(widgetParent);
-            }
-
-            if (widgetParent !== null && (typeof widgetParent !== 'string' && !(widgetParent instanceof jQuery))) {
-                throw new TypeError('widgetParent() expects a string or a jQuery object parameter');
-            }
-
-            options.widgetParent = widgetParent;
-            if (widget) {
-                hide();
-                show();
-            }
-            return picker;
-        };
-
-        picker.keepOpen = function (keepOpen) {
-            if (arguments.length === 0) {
-                return options.format;
-            }
-
-            if (typeof keepOpen !== 'boolean') {
-                throw new TypeError('keepOpen() expects a boolean parameter');
-            }
-
-            options.keepOpen = keepOpen;
-            return picker;
-        };
-
-        // initializing element and component attributes
-        if (element.is('input')) {
-            input = element;
-        } else {
-            input = element.find('.datepickerinput');
-            if (input.size() === 0) {
-                input = element.find('input');
-            } else if (!input.is('input')) {
-                throw new Error('CSS class "datepickerinput" cannot be applied to non input element');
-            }
-        }
-
-        if (element.hasClass('input-group')) {
-            // in case there is more then one 'input-group-addon' Issue #48
-            if (element.find('.datepickerbutton').size() === 0) {
-                component = element.find('[class^="input-group-"]');
-            } else {
-                component = element.find('.datepickerbutton');
-            }
-        }
-
-        if (!input.is('input')) {
-            throw new Error('Could not initialize DateTimePicker without an input element');
-        }
-
-        $.extend(true, options, dataToOptions());
-
-        picker.options(options);
-
-        initFormatting();
-
-        attachDatePickerElementEvents();
-
-        if (input.prop('disabled')) {
-            picker.disable();
-        }
-
-        if (input.val().trim().length !== 0) {
-            setValue(parseInputDate(input.val().trim()));
-        } else if (options.defaultDate) {
-            setValue(options.defaultDate);
-        }
-
-        return picker;
-    };
-
-    /********************************************************************************
-     *
-     * jQuery plugin constructor and defaults object
-     *
-     ********************************************************************************/
-
-    $.fn.datetimepicker = function (options) {
-        return this.each(function () {
-            var $this = $(this);
-            if (!$this.data('DateTimePicker')) {
-                // create a private copy of the defaults object
-                options = $.extend(true, {}, $.fn.datetimepicker.defaults, options);
-                $this.data('DateTimePicker', dateTimePicker($this, options));
-            }
-        });
-    };
-
-    $.fn.datetimepicker.defaults = {
-        format: false,
-        dayViewHeaderFormat: 'MMMM YYYY',
-        extraFormats: false,
-        stepping: 1,
-        minDate: false,
-        maxDate: false,
-        useCurrent: true,
-        collapse: true,
-        locale: moment.locale(),
-        defaultDate: false,
-        disabledDates: false,
-        enabledDates: false,
-        icons: {
-            time: 'glyphicon glyphicon-time',
-            date: 'glyphicon glyphicon-calendar',
-            up: 'glyphicon glyphicon-chevron-up',
-            down: 'glyphicon glyphicon-chevron-down',
-            previous: 'glyphicon glyphicon-chevron-left',
-            next: 'glyphicon glyphicon-chevron-right',
-            today: 'glyphicon glyphicon-screenshot',
-            clear: 'glyphicon glyphicon-trash'
-        },
-        useStrict: false,
-        sideBySide: false,
-        daysOfWeekDisabled: [],
-        calendarWeeks: false,
-        viewMode: 'days',
-        toolbarPlacement: 'default',
-        showTodayButton: false,
-        showClear: false,
-        widgetPositioning: {
-            horizontal: 'auto',
-            vertical: 'auto'
-        },
-        widgetParent: null,
-        keepOpen: false
-    };
-}));
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/js/bootstrap-datetimepicker.min.js b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/js/bootstrap-datetimepicker.min.js
deleted file mode 100644
index 5fdddb3..0000000
--- a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/js/bootstrap-datetimepicker.min.js
+++ /dev/null
@@ -1 +0,0 @@
-!function(a){"use strict";if("function"==typeof define&&define.amd)define(["jquery","moment"],a);else if("object"==typeof exports)a(require("jquery"),require("moment"));else{if(!jQuery)throw"bootstrap-datetimepicker requires jQuery to be loaded first";if(!moment)throw"bootstrap-datetimepicker requires Moment.js to be loaded first";a(jQuery,moment)}}(function(a,b){"use strict";if(!b)throw new Error("bootstrap-datetimepicker requires Moment.js to be loaded first");var c=function(c,d){var e [...]
\ No newline at end of file
diff --git a/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/js/moment-with-locales.js b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/js/moment-with-locales.js
new file mode 100644
index 0000000..5ebab76
--- /dev/null
+++ b/viewers/wicket/ui/src/main/java/org/apache/isis/viewer/wicket/ui/components/scalars/datepicker/js/moment-with-locales.js
@@ -0,0 +1,18083 @@
+;(function (global, factory) {
+    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+    typeof define === 'function' && define.amd ? define(factory) :
+    global.moment = factory()
+}(this, (function () { 'use strict';
+
+    var hookCallback;
+
+    function hooks() {
+        return hookCallback.apply(null, arguments);
+    }
+
+    // This is done to register the method called with moment()
+    // without creating circular dependencies.
+    function setHookCallback(callback) {
+        hookCallback = callback;
+    }
+
+    function isArray(input) {
+        return (
+            input instanceof Array ||
+            Object.prototype.toString.call(input) === '[object Array]'
+        );
+    }
+
+    function isObject(input) {
+        // IE8 will treat undefined and null as object if it wasn't for
+        // input != null
+        return (
+            input != null &&
+            Object.prototype.toString.call(input) === '[object Object]'
+        );
+    }
+
+    function hasOwnProp(a, b) {
+        return Object.prototype.hasOwnProperty.call(a, b);
+    }
+
+    function isObjectEmpty(obj) {
+        if (Object.getOwnPropertyNames) {
+            return Object.getOwnPropertyNames(obj).length === 0;
+        } else {
+            var k;
+            for (k in obj) {
+                if (hasOwnProp(obj, k)) {
+                    return false;
+                }
+            }
+            return true;
+        }
+    }
+
+    function isUndefined(input) {
+        return input === void 0;
+    }
+
+    function isNumber(input) {
+        return (
+            typeof input === 'number' ||
+            Object.prototype.toString.call(input) === '[object Number]'
+        );
+    }
+
+    function isDate(input) {
+        return (
+            input instanceof Date ||
+            Object.prototype.toString.call(input) === '[object Date]'
+        );
+    }
+
+    function map(arr, fn) {
+        var res = [],
+            i;
+        for (i = 0; i < arr.length; ++i) {
+            res.push(fn(arr[i], i));
+        }
+        return res;
+    }
+
+    function extend(a, b) {
+        for (var i in b) {
+            if (hasOwnProp(b, i)) {
+                a[i] = b[i];
+            }
+        }
+
+        if (hasOwnProp(b, 'toString')) {
+            a.toString = b.toString;
+        }
+
+        if (hasOwnProp(b, 'valueOf')) {
+            a.valueOf = b.valueOf;
+        }
+
+        return a;
+    }
+
+    function createUTC(input, format, locale, strict) {
+        return createLocalOrUTC(input, format, locale, strict, true).utc();
+    }
+
+    function defaultParsingFlags() {
+        // We need to deep clone this object.
+        return {
+            empty: false,
+            unusedTokens: [],
+            unusedInput: [],
+            overflow: -2,
+            charsLeftOver: 0,
+            nullInput: false,
+            invalidEra: null,
+            invalidMonth: null,
+            invalidFormat: false,
+            userInvalidated: false,
+            iso: false,
+            parsedDateParts: [],
+            era: null,
+            meridiem: null,
+            rfc2822: false,
+            weekdayMismatch: false,
+        };
+    }
+
+    function getParsingFlags(m) {
+        if (m._pf == null) {
+            m._pf = defaultParsingFlags();
+        }
+        return m._pf;
+    }
+
+    var some;
+    if (Array.prototype.some) {
+        some = Array.prototype.some;
+    } else {
+        some = function (fun) {
+            var t = Object(this),
+                len = t.length >>> 0,
+                i;
+
+            for (i = 0; i < len; i++) {
+                if (i in t && fun.call(this, t[i], i, t)) {
+                    return true;
+                }
+            }
+
+            return false;
+        };
+    }
+
+    function isValid(m) {
+        if (m._isValid == null) {
+            var flags = getParsingFlags(m),
+                parsedParts = some.call(flags.parsedDateParts, function (i) {
+                    return i != null;
+                }),
+                isNowValid =
+                    !isNaN(m._d.getTime()) &&
+                    flags.overflow < 0 &&
+                    !flags.empty &&
+                    !flags.invalidEra &&
+                    !flags.invalidMonth &&
+                    !flags.invalidWeekday &&
+                    !flags.weekdayMismatch &&
+                    !flags.nullInput &&
+                    !flags.invalidFormat &&
+                    !flags.userInvalidated &&
+                    (!flags.meridiem || (flags.meridiem && parsedParts));
+
+            if (m._strict) {
+                isNowValid =
+                    isNowValid &&
+                    flags.charsLeftOver === 0 &&
+                    flags.unusedTokens.length === 0 &&
+                    flags.bigHour === undefined;
+            }
+
+            if (Object.isFrozen == null || !Object.isFrozen(m)) {
+                m._isValid = isNowValid;
+            } else {
+                return isNowValid;
+            }
+        }
+        return m._isValid;
+    }
+
+    function createInvalid(flags) {
+        var m = createUTC(NaN);
+        if (flags != null) {
+            extend(getParsingFlags(m), flags);
+        } else {
+            getParsingFlags(m).userInvalidated = true;
+        }
+
+        return m;
+    }
+
+    // Plugins that add properties should also add the key here (null value),
+    // so we can properly clone ourselves.
+    var momentProperties = (hooks.momentProperties = []),
+        updateInProgress = false;
+
+    function copyConfig(to, from) {
+        var i, prop, val;
+
+        if (!isUndefined(from._isAMomentObject)) {
+            to._isAMomentObject = from._isAMomentObject;
+        }
+        if (!isUndefined(from._i)) {
+            to._i = from._i;
+        }
+        if (!isUndefined(from._f)) {
+            to._f = from._f;
+        }
+        if (!isUndefined(from._l)) {
+            to._l = from._l;
+        }
+        if (!isUndefined(from._strict)) {
+            to._strict = from._strict;
+        }
+        if (!isUndefined(from._tzm)) {
+            to._tzm = from._tzm;
+        }
+        if (!isUndefined(from._isUTC)) {
+            to._isUTC = from._isUTC;
+        }
+        if (!isUndefined(from._offset)) {
+            to._offset = from._offset;
+        }
+        if (!isUndefined(from._pf)) {
+            to._pf = getParsingFlags(from);
+        }
+        if (!isUndefined(from._locale)) {
+            to._locale = from._locale;
+        }
+
+        if (momentProperties.length > 0) {
+            for (i = 0; i < momentProperties.length; i++) {
+                prop = momentProperties[i];
+                val = from[prop];
+                if (!isUndefined(val)) {
+                    to[prop] = val;
+                }
+            }
+        }
+
+        return to;
+    }
+
+    // Moment prototype object
+    function Moment(config) {
+        copyConfig(this, config);
+        this._d = new Date(config._d != null ? config._d.getTime() : NaN);
+        if (!this.isValid()) {
+            this._d = new Date(NaN);
+        }
+        // Prevent infinite loop in case updateOffset creates new moment
+        // objects.
+        if (updateInProgress === false) {
+            updateInProgress = true;
+            hooks.updateOffset(this);
+            updateInProgress = false;
+        }
+    }
+
+    function isMoment(obj) {
+        return (
+            obj instanceof Moment || (obj != null && obj._isAMomentObject != null)
+        );
+    }
+
+    function warn(msg) {
+        if (
+            hooks.suppressDeprecationWarnings === false &&
+            typeof console !== 'undefined' &&
+            console.warn
+        ) {
+            console.warn('Deprecation warning: ' + msg);
+        }
+    }
+
+    function deprecate(msg, fn) {
+        var firstTime = true;
+
+        return extend(function () {
+            if (hooks.deprecationHandler != null) {
+                hooks.deprecationHandler(null, msg);
+            }
+            if (firstTime) {
+                var args = [],
+                    arg,
+                    i,
+                    key;
+                for (i = 0; i < arguments.length; i++) {
+                    arg = '';
+                    if (typeof arguments[i] === 'object') {
+                        arg += '\n[' + i + '] ';
+                        for (key in arguments[0]) {
+                            if (hasOwnProp(arguments[0], key)) {
+                                arg += key + ': ' + arguments[0][key] + ', ';
+                            }
+                        }
+                        arg = arg.slice(0, -2); // Remove trailing comma and space
+                    } else {
+                        arg = arguments[i];
+                    }
+                    args.push(arg);
+                }
+                warn(
+                    msg +
+                        '\nArguments: ' +
+                        Array.prototype.slice.call(args).join('') +
+                        '\n' +
+                        new Error().stack
+                );
+                firstTime = false;
+            }
+            return fn.apply(this, arguments);
+        }, fn);
+    }
+
+    var deprecations = {};
+
+    function deprecateSimple(name, msg) {
+        if (hooks.deprecationHandler != null) {
+            hooks.deprecationHandler(name, msg);
+        }
+        if (!deprecations[name]) {
+            warn(msg);
+            deprecations[name] = true;
+        }
+    }
+
+    hooks.suppressDeprecationWarnings = false;
+    hooks.deprecationHandler = null;
+
+    function isFunction(input) {
+        return (
+            (typeof Function !== 'undefined' && input instanceof Function) ||
+            Object.prototype.toString.call(input) === '[object Function]'
+        );
+    }
+
+    function set(config) {
+        var prop, i;
+        for (i in config) {
+            if (hasOwnProp(config, i)) {
+                prop = config[i];
+                if (isFunction(prop)) {
+                    this[i] = prop;
+                } else {
+                    this['_' + i] = prop;
+                }
+            }
+        }
+        this._config = config;
+        // Lenient ordinal parsing accepts just a number in addition to
+        // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
+        // TODO: Remove "ordinalParse" fallback in next major release.
+        this._dayOfMonthOrdinalParseLenient = new RegExp(
+            (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
+                '|' +
+                /\d{1,2}/.source
+        );
+    }
+
+    function mergeConfigs(parentConfig, childConfig) {
+        var res = extend({}, parentConfig),
+            prop;
+        for (prop in childConfig) {
+            if (hasOwnProp(childConfig, prop)) {
+                if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
+                    res[prop] = {};
+                    extend(res[prop], parentConfig[prop]);
+                    extend(res[prop], childConfig[prop]);
+                } else if (childConfig[prop] != null) {
+                    res[prop] = childConfig[prop];
+                } else {
+                    delete res[prop];
+                }
+            }
+        }
+        for (prop in parentConfig) {
+            if (
+                hasOwnProp(parentConfig, prop) &&
+                !hasOwnProp(childConfig, prop) &&
+                isObject(parentConfig[prop])
+            ) {
+                // make sure changes to properties don't modify parent config
+                res[prop] = extend({}, res[prop]);
+            }
+        }
+        return res;
+    }
+
+    function Locale(config) {
+        if (config != null) {
+            this.set(config);
+        }
+    }
+
+    var keys;
+
+    if (Object.keys) {
+        keys = Object.keys;
+    } else {
+        keys = function (obj) {
+            var i,
+                res = [];
+            for (i in obj) {
+                if (hasOwnProp(obj, i)) {
+                    res.push(i);
+                }
+            }
+            return res;
+        };
+    }
+
+    var defaultCalendar = {
+        sameDay: '[Today at] LT',
+        nextDay: '[Tomorrow at] LT',
+        nextWeek: 'dddd [at] LT',
+        lastDay: '[Yesterday at] LT',
+        lastWeek: '[Last] dddd [at] LT',
+        sameElse: 'L',
+    };
+
+    function calendar(key, mom, now) {
+        var output = this._calendar[key] || this._calendar['sameElse'];
+        return isFunction(output) ? output.call(mom, now) : output;
+    }
+
+    function zeroFill(number, targetLength, forceSign) {
+        var absNumber = '' + Math.abs(number),
+            zerosToFill = targetLength - absNumber.length,
+            sign = number >= 0;
+        return (
+            (sign ? (forceSign ? '+' : '') : '-') +
+            Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) +
+            absNumber
+        );
+    }
+
+    var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|N{1,5}|YYYYYY|YYYYY|YYYY|YY|y{2,4}|yo?|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g,
+        localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g,
+        formatFunctions = {},
+        formatTokenFunctions = {};
+
+    // token:    'M'
+    // padded:   ['MM', 2]
+    // ordinal:  'Mo'
+    // callback: function () { this.month() + 1 }
+    function addFormatToken(token, padded, ordinal, callback) {
+        var func = callback;
+        if (typeof callback === 'string') {
+            func = function () {
+                return this[callback]();
+            };
+        }
+        if (token) {
+            formatTokenFunctions[token] = func;
+        }
+        if (padded) {
+            formatTokenFunctions[padded[0]] = function () {
+                return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
+            };
+        }
+        if (ordinal) {
+            formatTokenFunctions[ordinal] = function () {
+                return this.localeData().ordinal(
+                    func.apply(this, arguments),
+                    token
+                );
+            };
+        }
+    }
+
+    function removeFormattingTokens(input) {
+        if (input.match(/\[[\s\S]/)) {
+            return input.replace(/^\[|\]$/g, '');
+        }
+        return input.replace(/\\/g, '');
+    }
+
+    function makeFormatFunction(format) {
+        var array = format.match(formattingTokens),
+            i,
+            length;
+
+        for (i = 0, length = array.length; i < length; i++) {
+            if (formatTokenFunctions[array[i]]) {
+                array[i] = formatTokenFunctions[array[i]];
+            } else {
+                array[i] = removeFormattingTokens(array[i]);
+            }
+        }
+
+        return function (mom) {
+            var output = '',
+                i;
+            for (i = 0; i < length; i++) {
+                output += isFunction(array[i])
+                    ? array[i].call(mom, format)
+                    : array[i];
+            }
+            return output;
+        };
+    }
+
+    // format date using native date object
+    function formatMoment(m, format) {
+        if (!m.isValid()) {
+            return m.localeData().invalidDate();
+        }
+
+        format = expandFormat(format, m.localeData());
+        formatFunctions[format] =
+            formatFunctions[format] || makeFormatFunction(format);
+
+        return formatFunctions[format](m);
+    }
+
+    function expandFormat(format, locale) {
+        var i = 5;
+
+        function replaceLongDateFormatTokens(input) {
+            return locale.longDateFormat(input) || input;
+        }
+
+        localFormattingTokens.lastIndex = 0;
+        while (i >= 0 && localFormattingTokens.test(format)) {
+            format = format.replace(
+                localFormattingTokens,
+                replaceLongDateFormatTokens
+            );
+            localFormattingTokens.lastIndex = 0;
+            i -= 1;
+        }
+
+        return format;
+    }
+
+    var defaultLongDateFormat = {
+        LTS: 'h:mm:ss A',
+        LT: 'h:mm A',
+        L: 'MM/DD/YYYY',
+        LL: 'MMMM D, YYYY',
+        LLL: 'MMMM D, YYYY h:mm A',
+        LLLL: 'dddd, MMMM D, YYYY h:mm A',
+    };
+
+    function longDateFormat(key) {
+        var format = this._longDateFormat[key],
+            formatUpper = this._longDateFormat[key.toUpperCase()];
+
+        if (format || !formatUpper) {
+            return format;
+        }
+
+        this._longDateFormat[key] = formatUpper
+            .match(formattingTokens)
+            .map(function (tok) {
+                if (
+                    tok === 'MMMM' ||
+                    tok === 'MM' ||
+                    tok === 'DD' ||
+                    tok === 'dddd'
+                ) {
+                    return tok.slice(1);
+                }
+                return tok;
+            })
+            .join('');
+
+        return this._longDateFormat[key];
+    }
+
+    var defaultInvalidDate = 'Invalid date';
+
+    function invalidDate() {
+        return this._invalidDate;
+    }
+
+    var defaultOrdinal = '%d',
+        defaultDayOfMonthOrdinalParse = /\d{1,2}/;
+
+    function ordinal(number) {
+        return this._ordinal.replace('%d', number);
+    }
+
+    var defaultRelativeTime = {
+        future: 'in %s',
+        past: '%s ago',
+        s: 'a few seconds',
+        ss: '%d seconds',
+        m: 'a minute',
+        mm: '%d minutes',
+        h: 'an hour',
+        hh: '%d hours',
+        d: 'a day',
+        dd: '%d days',
+        w: 'a week',
+        ww: '%d weeks',
+        M: 'a month',
+        MM: '%d months',
+        y: 'a year',
+        yy: '%d years',
+    };
+
+    function relativeTime(number, withoutSuffix, string, isFuture) {
+        var output = this._relativeTime[string];
+        return isFunction(output)
+            ? output(number, withoutSuffix, string, isFuture)
+            : output.replace(/%d/i, number);
+    }
+
+    function pastFuture(diff, output) {
+        var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
+        return isFunction(format) ? format(output) : format.replace(/%s/i, output);
+    }
+
+    var aliases = {};
+
+    function addUnitAlias(unit, shorthand) {
+        var lowerCase = unit.toLowerCase();
+        aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
+    }
+
+    function normalizeUnits(units) {
+        return typeof units === 'string'
+            ? aliases[units] || aliases[units.toLowerCase()]
+            : undefined;
+    }
+
+    function normalizeObjectUnits(inputObject) {
+        var normalizedInput = {},
+            normalizedProp,
+            prop;
+
+        for (prop in inputObject) {
+            if (hasOwnProp(inputObject, prop)) {
+                normalizedProp = normalizeUnits(prop);
+                if (normalizedProp) {
+                    normalizedInput[normalizedProp] = inputObject[prop];
+                }
+            }
+        }
+
+        return normalizedInput;
+    }
+
+    var priorities = {};
+
+    function addUnitPriority(unit, priority) {
+        priorities[unit] = priority;
+    }
+
+    function getPrioritizedUnits(unitsObj) {
+        var units = [],
+            u;
+        for (u in unitsObj) {
+            if (hasOwnProp(unitsObj, u)) {
+                units.push({ unit: u, priority: priorities[u] });
+            }
+        }
+        units.sort(function (a, b) {
+            return a.priority - b.priority;
+        });
+        return units;
+    }
+
+    function isLeapYear(year) {
+        return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
+    }
+
+    function absFloor(number) {
+        if (number < 0) {
+            // -0 -> 0
+            return Math.ceil(number) || 0;
+        } else {
+            return Math.floor(number);
+        }
+    }
+
+    function toInt(argumentForCoercion) {
+        var coercedNumber = +argumentForCoercion,
+            value = 0;
+
+        if (coercedNumber !== 0 && isFinite(coercedNumber)) {
+            value = absFloor(coercedNumber);
+        }
+
+        return value;
+    }
+
+    function makeGetSet(unit, keepTime) {
+        return function (value) {
+            if (value != null) {
+                set$1(this, unit, value);
+                hooks.updateOffset(this, keepTime);
+                return this;
+            } else {
+                return get(this, unit);
+            }
+        };
+    }
+
+    function get(mom, unit) {
+        return mom.isValid()
+            ? mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]()
+            : NaN;
+    }
+
+    function set$1(mom, unit, value) {
+        if (mom.isValid() && !isNaN(value)) {
+            if (
+                unit === 'FullYear' &&
+                isLeapYear(mom.year()) &&
+                mom.month() === 1 &&
+                mom.date() === 29
+            ) {
+                value = toInt(value);
+                mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](
+                    value,
+                    mom.month(),
+                    daysInMonth(value, mom.month())
+                );
+            } else {
+                mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
+            }
+        }
+    }
+
+    // MOMENTS
+
+    function stringGet(units) {
+        units = normalizeUnits(units);
+        if (isFunction(this[units])) {
+            return this[units]();
+        }
+        return this;
+    }
+
+    function stringSet(units, value) {
+        if (typeof units === 'object') {
+            units = normalizeObjectUnits(units);
+            var prioritized = getPrioritizedUnits(units),
+                i;
+            for (i = 0; i < prioritized.length; i++) {
+                this[prioritized[i].unit](units[prioritized[i].unit]);
+            }
+        } else {
+            units = normalizeUnits(units);
+            if (isFunction(this[units])) {
+                return this[units](value);
+            }
+        }
+        return this;
+    }
+
+    var match1 = /\d/, //       0 - 9
+        match2 = /\d\d/, //      00 - 99
+        match3 = /\d{3}/, //     000 - 999
+        match4 = /\d{4}/, //    0000 - 9999
+        match6 = /[+-]?\d{6}/, // -999999 - 999999
+        match1to2 = /\d\d?/, //       0 - 99
+        match3to4 = /\d\d\d\d?/, //     999 - 9999
+        match5to6 = /\d\d\d\d\d\d?/, //   99999 - 999999
+        match1to3 = /\d{1,3}/, //       0 - 999
+        match1to4 = /\d{1,4}/, //       0 - 9999
+        match1to6 = /[+-]?\d{1,6}/, // -999999 - 999999
+        matchUnsigned = /\d+/, //       0 - inf
+        matchSigned = /[+-]?\d+/, //    -inf - inf
+        matchOffset = /Z|[+-]\d\d:?\d\d/gi, // +00:00 -00:00 +0000 -0000 or Z
+        matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi, // +00 -00 +00:00 -00:00 +0000 -0000 or Z
+        matchTimestamp = /[+-]?\d+(\.\d{1,3})?/, // 123456789 123456789.123
+        // any word (or two) characters or numbers including two/three word month in arabic.
+        // includes scottish gaelic two word and hyphenated months
+        matchWord = /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i,
+        regexes;
+
+    regexes = {};
+
+    function addRegexToken(token, regex, strictRegex) {
+        regexes[token] = isFunction(regex)
+            ? regex
+            : function (isStrict, localeData) {
+                  return isStrict && strictRegex ? strictRegex : regex;
+              };
+    }
+
+    function getParseRegexForToken(token, config) {
+        if (!hasOwnProp(regexes, token)) {
+            return new RegExp(unescapeFormat(token));
+        }
+
+        return regexes[token](config._strict, config._locale);
+    }
+
+    // Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
+    function unescapeFormat(s) {
+        return regexEscape(
+            s
+                .replace('\\', '')
+                .replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (
+                    matched,
+                    p1,
+                    p2,
+                    p3,
+                    p4
+                ) {
+                    return p1 || p2 || p3 || p4;
+                })
+        );
+    }
+
+    function regexEscape(s) {
+        return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
+    }
+
+    var tokens = {};
+
+    function addParseToken(token, callback) {
+        var i,
+            func = callback;
+        if (typeof token === 'string') {
+            token = [token];
+        }
+        if (isNumber(callback)) {
+            func = function (input, array) {
+                array[callback] = toInt(input);
+            };
+        }
+        for (i = 0; i < token.length; i++) {
+            tokens[token[i]] = func;
+        }
+    }
+
+    function addWeekParseToken(token, callback) {
+        addParseToken(token, function (input, array, config, token) {
+            config._w = config._w || {};
+            callback(input, config._w, config, token);
+        });
+    }
+
+    function addTimeToArrayFromToken(token, input, config) {
+        if (input != null && hasOwnProp(tokens, token)) {
+            tokens[token](input, config._a, config, token);
+        }
+    }
+
+    var YEAR = 0,
+        MONTH = 1,
+        DATE = 2,
+        HOUR = 3,
+        MINUTE = 4,
+        SECOND = 5,
+        MILLISECOND = 6,
+        WEEK = 7,
+        WEEKDAY = 8;
+
+    function mod(n, x) {
+        return ((n % x) + x) % x;
+    }
+
+    var indexOf;
+
+    if (Array.prototype.indexOf) {
+        indexOf = Array.prototype.indexOf;
+    } else {
+        indexOf = function (o) {
+            // I know
+            var i;
+            for (i = 0; i < this.length; ++i) {
+                if (this[i] === o) {
+                    return i;
+                }
+            }
+            return -1;
+        };
+    }
+
+    function daysInMonth(year, month) {
+        if (isNaN(year) || isNaN(month)) {
+            return NaN;
+        }
+        var modMonth = mod(month, 12);
+        year += (month - modMonth) / 12;
+        return modMonth === 1
+            ? isLeapYear(year)
+                ? 29
+                : 28
+            : 31 - ((modMonth % 7) % 2);
+    }
+
+    // FORMATTING
+
+    addFormatToken('M', ['MM', 2], 'Mo', function () {
+        return this.month() + 1;
+    });
+
+    addFormatToken('MMM', 0, 0, function (format) {
+        return this.localeData().monthsShort(this, format);
+    });
+
+    addFormatToken('MMMM', 0, 0, function (format) {
+        return this.localeData().months(this, format);
+    });
+
+    // ALIASES
+
+    addUnitAlias('month', 'M');
+
+    // PRIORITY
+
+    addUnitPriority('month', 8);
+
+    // PARSING
+
+    addRegexToken('M', match1to2);
+    addRegexToken('MM', match1to2, match2);
+    addRegexToken('MMM', function (isStrict, locale) {
+        return locale.monthsShortRegex(isStrict);
+    });
+    addRegexToken('MMMM', function (isStrict, locale) {
+        return locale.monthsRegex(isStrict);
+    });
+
+    addParseToken(['M', 'MM'], function (input, array) {
+        array[MONTH] = toInt(input) - 1;
+    });
+
+    addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
+        var month = config._locale.monthsParse(input, token, config._strict);
+        // if we didn't find a month name, mark the date as invalid.
+        if (month != null) {
+            array[MONTH] = month;
+        } else {
+            getParsingFlags(config).invalidMonth = input;
+        }
+    });
+
+    // LOCALES
+
+    var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
+            '_'
+        ),
+        defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split(
+            '_'
+        ),
+        MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/,
+        defaultMonthsShortRegex = matchWord,
+        defaultMonthsRegex = matchWord;
+
+    function localeMonths(m, format) {
+        if (!m) {
+            return isArray(this._months)
+                ? this._months
+                : this._months['standalone'];
+        }
+        return isArray(this._months)
+            ? this._months[m.month()]
+            : this._months[
+                  (this._months.isFormat || MONTHS_IN_FORMAT).test(format)
+                      ? 'format'
+                      : 'standalone'
+              ][m.month()];
+    }
+
+    function localeMonthsShort(m, format) {
+        if (!m) {
+            return isArray(this._monthsShort)
+                ? this._monthsShort
+                : this._monthsShort['standalone'];
+        }
+        return isArray(this._monthsShort)
+            ? this._monthsShort[m.month()]
+            : this._monthsShort[
+                  MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'
+              ][m.month()];
+    }
+
+    function handleStrictParse(monthName, format, strict) {
+        var i,
+            ii,
+            mom,
+            llc = monthName.toLocaleLowerCase();
+        if (!this._monthsParse) {
+            // this is not used
+            this._monthsParse = [];
+            this._longMonthsParse = [];
+            this._shortMonthsParse = [];
+            for (i = 0; i < 12; ++i) {
+                mom = createUTC([2000, i]);
+                this._shortMonthsParse[i] = this.monthsShort(
+                    mom,
+                    ''
+                ).toLocaleLowerCase();
+                this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
+            }
+        }
+
+        if (strict) {
+            if (format === 'MMM') {
+                ii = indexOf.call(this._shortMonthsParse, llc);
+                return ii !== -1 ? ii : null;
+            } else {
+                ii = indexOf.call(this._longMonthsParse, llc);
+                return ii !== -1 ? ii : null;
+            }
+        } else {
+            if (format === 'MMM') {
+                ii = indexOf.call(this._shortMonthsParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._longMonthsParse, llc);
+                return ii !== -1 ? ii : null;
+            } else {
+                ii = indexOf.call(this._longMonthsParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._shortMonthsParse, llc);
+                return ii !== -1 ? ii : null;
+            }
+        }
+    }
+
+    function localeMonthsParse(monthName, format, strict) {
+        var i, mom, regex;
+
+        if (this._monthsParseExact) {
+            return handleStrictParse.call(this, monthName, format, strict);
+        }
+
+        if (!this._monthsParse) {
+            this._monthsParse = [];
+            this._longMonthsParse = [];
+            this._shortMonthsParse = [];
+        }
+
+        // TODO: add sorting
+        // Sorting makes sure if one month (or abbr) is a prefix of another
+        // see sorting in computeMonthsParse
+        for (i = 0; i < 12; i++) {
+            // make the regex if we don't have it already
+            mom = createUTC([2000, i]);
+            if (strict && !this._longMonthsParse[i]) {
+                this._longMonthsParse[i] = new RegExp(
+                    '^' + this.months(mom, '').replace('.', '') + '$',
+                    'i'
+                );
+                this._shortMonthsParse[i] = new RegExp(
+                    '^' + this.monthsShort(mom, '').replace('.', '') + '$',
+                    'i'
+                );
+            }
+            if (!strict && !this._monthsParse[i]) {
+                regex =
+                    '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
+                this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
+            }
+            // test the regex
+            if (
+                strict &&
+                format === 'MMMM' &&
+                this._longMonthsParse[i].test(monthName)
+            ) {
+                return i;
+            } else if (
+                strict &&
+                format === 'MMM' &&
+                this._shortMonthsParse[i].test(monthName)
+            ) {
+                return i;
+            } else if (!strict && this._monthsParse[i].test(monthName)) {
+                return i;
+            }
+        }
+    }
+
+    // MOMENTS
+
+    function setMonth(mom, value) {
+        var dayOfMonth;
+
+        if (!mom.isValid()) {
+            // No op
+            return mom;
+        }
+
+        if (typeof value === 'string') {
+            if (/^\d+$/.test(value)) {
+                value = toInt(value);
+            } else {
+                value = mom.localeData().monthsParse(value);
+                // TODO: Another silent failure?
+                if (!isNumber(value)) {
+                    return mom;
+                }
+            }
+        }
+
+        dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
+        mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
+        return mom;
+    }
+
+    function getSetMonth(value) {
+        if (value != null) {
+            setMonth(this, value);
+            hooks.updateOffset(this, true);
+            return this;
+        } else {
+            return get(this, 'Month');
+        }
+    }
+
+    function getDaysInMonth() {
+        return daysInMonth(this.year(), this.month());
+    }
+
+    function monthsShortRegex(isStrict) {
+        if (this._monthsParseExact) {
+            if (!hasOwnProp(this, '_monthsRegex')) {
+                computeMonthsParse.call(this);
+            }
+            if (isStrict) {
+                return this._monthsShortStrictRegex;
+            } else {
+                return this._monthsShortRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_monthsShortRegex')) {
+                this._monthsShortRegex = defaultMonthsShortRegex;
+            }
+            return this._monthsShortStrictRegex && isStrict
+                ? this._monthsShortStrictRegex
+                : this._monthsShortRegex;
+        }
+    }
+
+    function monthsRegex(isStrict) {
+        if (this._monthsParseExact) {
+            if (!hasOwnProp(this, '_monthsRegex')) {
+                computeMonthsParse.call(this);
+            }
+            if (isStrict) {
+                return this._monthsStrictRegex;
+            } else {
+                return this._monthsRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_monthsRegex')) {
+                this._monthsRegex = defaultMonthsRegex;
+            }
+            return this._monthsStrictRegex && isStrict
+                ? this._monthsStrictRegex
+                : this._monthsRegex;
+        }
+    }
+
+    function computeMonthsParse() {
+        function cmpLenRev(a, b) {
+            return b.length - a.length;
+        }
+
+        var shortPieces = [],
+            longPieces = [],
+            mixedPieces = [],
+            i,
+            mom;
+        for (i = 0; i < 12; i++) {
+            // make the regex if we don't have it already
+            mom = createUTC([2000, i]);
+            shortPieces.push(this.monthsShort(mom, ''));
+            longPieces.push(this.months(mom, ''));
+            mixedPieces.push(this.months(mom, ''));
+            mixedPieces.push(this.monthsShort(mom, ''));
+        }
+        // Sorting makes sure if one month (or abbr) is a prefix of another it
+        // will match the longer piece.
+        shortPieces.sort(cmpLenRev);
+        longPieces.sort(cmpLenRev);
+        mixedPieces.sort(cmpLenRev);
+        for (i = 0; i < 12; i++) {
+            shortPieces[i] = regexEscape(shortPieces[i]);
+            longPieces[i] = regexEscape(longPieces[i]);
+        }
+        for (i = 0; i < 24; i++) {
+            mixedPieces[i] = regexEscape(mixedPieces[i]);
+        }
+
+        this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+        this._monthsShortRegex = this._monthsRegex;
+        this._monthsStrictRegex = new RegExp(
+            '^(' + longPieces.join('|') + ')',
+            'i'
+        );
+        this._monthsShortStrictRegex = new RegExp(
+            '^(' + shortPieces.join('|') + ')',
+            'i'
+        );
+    }
+
+    // FORMATTING
+
+    addFormatToken('Y', 0, 0, function () {
+        var y = this.year();
+        return y <= 9999 ? zeroFill(y, 4) : '+' + y;
+    });
+
+    addFormatToken(0, ['YY', 2], 0, function () {
+        return this.year() % 100;
+    });
+
+    addFormatToken(0, ['YYYY', 4], 0, 'year');
+    addFormatToken(0, ['YYYYY', 5], 0, 'year');
+    addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');
+
+    // ALIASES
+
+    addUnitAlias('year', 'y');
+
+    // PRIORITIES
+
+    addUnitPriority('year', 1);
+
+    // PARSING
+
+    addRegexToken('Y', matchSigned);
+    addRegexToken('YY', match1to2, match2);
+    addRegexToken('YYYY', match1to4, match4);
+    addRegexToken('YYYYY', match1to6, match6);
+    addRegexToken('YYYYYY', match1to6, match6);
+
+    addParseToken(['YYYYY', 'YYYYYY'], YEAR);
+    addParseToken('YYYY', function (input, array) {
+        array[YEAR] =
+            input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
+    });
+    addParseToken('YY', function (input, array) {
+        array[YEAR] = hooks.parseTwoDigitYear(input);
+    });
+    addParseToken('Y', function (input, array) {
+        array[YEAR] = parseInt(input, 10);
+    });
+
+    // HELPERS
+
+    function daysInYear(year) {
+        return isLeapYear(year) ? 366 : 365;
+    }
+
+    // HOOKS
+
+    hooks.parseTwoDigitYear = function (input) {
+        return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
+    };
+
+    // MOMENTS
+
+    var getSetYear = makeGetSet('FullYear', true);
+
+    function getIsLeapYear() {
+        return isLeapYear(this.year());
+    }
+
+    function createDate(y, m, d, h, M, s, ms) {
+        // can't just apply() to create a date:
+        // https://stackoverflow.com/q/181348
+        var date;
+        // the date constructor remaps years 0-99 to 1900-1999
+        if (y < 100 && y >= 0) {
+            // preserve leap years using a full 400 year cycle, then reset
+            date = new Date(y + 400, m, d, h, M, s, ms);
+            if (isFinite(date.getFullYear())) {
+                date.setFullYear(y);
+            }
+        } else {
+            date = new Date(y, m, d, h, M, s, ms);
+        }
+
+        return date;
+    }
+
+    function createUTCDate(y) {
+        var date, args;
+        // the Date.UTC function remaps years 0-99 to 1900-1999
+        if (y < 100 && y >= 0) {
+            args = Array.prototype.slice.call(arguments);
+            // preserve leap years using a full 400 year cycle, then reset
+            args[0] = y + 400;
+            date = new Date(Date.UTC.apply(null, args));
+            if (isFinite(date.getUTCFullYear())) {
+                date.setUTCFullYear(y);
+            }
+        } else {
+            date = new Date(Date.UTC.apply(null, arguments));
+        }
+
+        return date;
+    }
+
+    // start-of-first-week - start-of-year
+    function firstWeekOffset(year, dow, doy) {
+        var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
+            fwd = 7 + dow - doy,
+            // first-week day local weekday -- which local weekday is fwd
+            fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;
+
+        return -fwdlw + fwd - 1;
+    }
+
+    // https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
+    function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
+        var localWeekday = (7 + weekday - dow) % 7,
+            weekOffset = firstWeekOffset(year, dow, doy),
+            dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
+            resYear,
+            resDayOfYear;
+
+        if (dayOfYear <= 0) {
+            resYear = year - 1;
+            resDayOfYear = daysInYear(resYear) + dayOfYear;
+        } else if (dayOfYear > daysInYear(year)) {
+            resYear = year + 1;
+            resDayOfYear = dayOfYear - daysInYear(year);
+        } else {
+            resYear = year;
+            resDayOfYear = dayOfYear;
+        }
+
+        return {
+            year: resYear,
+            dayOfYear: resDayOfYear,
+        };
+    }
+
+    function weekOfYear(mom, dow, doy) {
+        var weekOffset = firstWeekOffset(mom.year(), dow, doy),
+            week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
+            resWeek,
+            resYear;
+
+        if (week < 1) {
+            resYear = mom.year() - 1;
+            resWeek = week + weeksInYear(resYear, dow, doy);
+        } else if (week > weeksInYear(mom.year(), dow, doy)) {
+            resWeek = week - weeksInYear(mom.year(), dow, doy);
+            resYear = mom.year() + 1;
+        } else {
+            resYear = mom.year();
+            resWeek = week;
+        }
+
+        return {
+            week: resWeek,
+            year: resYear,
+        };
+    }
+
+    function weeksInYear(year, dow, doy) {
+        var weekOffset = firstWeekOffset(year, dow, doy),
+            weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
+        return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
+    }
+
+    // FORMATTING
+
+    addFormatToken('w', ['ww', 2], 'wo', 'week');
+    addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');
+
+    // ALIASES
+
+    addUnitAlias('week', 'w');
+    addUnitAlias('isoWeek', 'W');
+
+    // PRIORITIES
+
+    addUnitPriority('week', 5);
+    addUnitPriority('isoWeek', 5);
+
+    // PARSING
+
+    addRegexToken('w', match1to2);
+    addRegexToken('ww', match1to2, match2);
+    addRegexToken('W', match1to2);
+    addRegexToken('WW', match1to2, match2);
+
+    addWeekParseToken(['w', 'ww', 'W', 'WW'], function (
+        input,
+        week,
+        config,
+        token
+    ) {
+        week[token.substr(0, 1)] = toInt(input);
+    });
+
+    // HELPERS
+
+    // LOCALES
+
+    function localeWeek(mom) {
+        return weekOfYear(mom, this._week.dow, this._week.doy).week;
+    }
+
+    var defaultLocaleWeek = {
+        dow: 0, // Sunday is the first day of the week.
+        doy: 6, // The week that contains Jan 6th is the first week of the year.
+    };
+
+    function localeFirstDayOfWeek() {
+        return this._week.dow;
+    }
+
+    function localeFirstDayOfYear() {
+        return this._week.doy;
+    }
+
+    // MOMENTS
+
+    function getSetWeek(input) {
+        var week = this.localeData().week(this);
+        return input == null ? week : this.add((input - week) * 7, 'd');
+    }
+
+    function getSetISOWeek(input) {
+        var week = weekOfYear(this, 1, 4).week;
+        return input == null ? week : this.add((input - week) * 7, 'd');
+    }
+
+    // FORMATTING
+
+    addFormatToken('d', 0, 'do', 'day');
+
+    addFormatToken('dd', 0, 0, function (format) {
+        return this.localeData().weekdaysMin(this, format);
+    });
+
+    addFormatToken('ddd', 0, 0, function (format) {
+        return this.localeData().weekdaysShort(this, format);
+    });
+
+    addFormatToken('dddd', 0, 0, function (format) {
+        return this.localeData().weekdays(this, format);
+    });
+
+    addFormatToken('e', 0, 0, 'weekday');
+    addFormatToken('E', 0, 0, 'isoWeekday');
+
+    // ALIASES
+
+    addUnitAlias('day', 'd');
+    addUnitAlias('weekday', 'e');
+    addUnitAlias('isoWeekday', 'E');
+
+    // PRIORITY
+    addUnitPriority('day', 11);
+    addUnitPriority('weekday', 11);
+    addUnitPriority('isoWeekday', 11);
+
+    // PARSING
+
+    addRegexToken('d', match1to2);
+    addRegexToken('e', match1to2);
+    addRegexToken('E', match1to2);
+    addRegexToken('dd', function (isStrict, locale) {
+        return locale.weekdaysMinRegex(isStrict);
+    });
+    addRegexToken('ddd', function (isStrict, locale) {
+        return locale.weekdaysShortRegex(isStrict);
+    });
+    addRegexToken('dddd', function (isStrict, locale) {
+        return locale.weekdaysRegex(isStrict);
+    });
+
+    addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
+        var weekday = config._locale.weekdaysParse(input, token, config._strict);
+        // if we didn't get a weekday name, mark the date as invalid
+        if (weekday != null) {
+            week.d = weekday;
+        } else {
+            getParsingFlags(config).invalidWeekday = input;
+        }
+    });
+
+    addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
+        week[token] = toInt(input);
+    });
+
+    // HELPERS
+
+    function parseWeekday(input, locale) {
+        if (typeof input !== 'string') {
+            return input;
+        }
+
+        if (!isNaN(input)) {
+            return parseInt(input, 10);
+        }
+
+        input = locale.weekdaysParse(input);
+        if (typeof input === 'number') {
+            return input;
+        }
+
+        return null;
+    }
+
+    function parseIsoWeekday(input, locale) {
+        if (typeof input === 'string') {
+            return locale.weekdaysParse(input) % 7 || 7;
+        }
+        return isNaN(input) ? null : input;
+    }
+
+    // LOCALES
+    function shiftWeekdays(ws, n) {
+        return ws.slice(n, 7).concat(ws.slice(0, n));
+    }
+
+    var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
+            '_'
+        ),
+        defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
+        defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
+        defaultWeekdaysRegex = matchWord,
+        defaultWeekdaysShortRegex = matchWord,
+        defaultWeekdaysMinRegex = matchWord;
+
+    function localeWeekdays(m, format) {
+        var weekdays = isArray(this._weekdays)
+            ? this._weekdays
+            : this._weekdays[
+                  m && m !== true && this._weekdays.isFormat.test(format)
+                      ? 'format'
+                      : 'standalone'
+              ];
+        return m === true
+            ? shiftWeekdays(weekdays, this._week.dow)
+            : m
+            ? weekdays[m.day()]
+            : weekdays;
+    }
+
+    function localeWeekdaysShort(m) {
+        return m === true
+            ? shiftWeekdays(this._weekdaysShort, this._week.dow)
+            : m
+            ? this._weekdaysShort[m.day()]
+            : this._weekdaysShort;
+    }
+
+    function localeWeekdaysMin(m) {
+        return m === true
+            ? shiftWeekdays(this._weekdaysMin, this._week.dow)
+            : m
+            ? this._weekdaysMin[m.day()]
+            : this._weekdaysMin;
+    }
+
+    function handleStrictParse$1(weekdayName, format, strict) {
+        var i,
+            ii,
+            mom,
+            llc = weekdayName.toLocaleLowerCase();
+        if (!this._weekdaysParse) {
+            this._weekdaysParse = [];
+            this._shortWeekdaysParse = [];
+            this._minWeekdaysParse = [];
+
+            for (i = 0; i < 7; ++i) {
+                mom = createUTC([2000, 1]).day(i);
+                this._minWeekdaysParse[i] = this.weekdaysMin(
+                    mom,
+                    ''
+                ).toLocaleLowerCase();
+                this._shortWeekdaysParse[i] = this.weekdaysShort(
+                    mom,
+                    ''
+                ).toLocaleLowerCase();
+                this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
+            }
+        }
+
+        if (strict) {
+            if (format === 'dddd') {
+                ii = indexOf.call(this._weekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            } else if (format === 'ddd') {
+                ii = indexOf.call(this._shortWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            } else {
+                ii = indexOf.call(this._minWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            }
+        } else {
+            if (format === 'dddd') {
+                ii = indexOf.call(this._weekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._shortWeekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._minWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            } else if (format === 'ddd') {
+                ii = indexOf.call(this._shortWeekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._weekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._minWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            } else {
+                ii = indexOf.call(this._minWeekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._weekdaysParse, llc);
+                if (ii !== -1) {
+                    return ii;
+                }
+                ii = indexOf.call(this._shortWeekdaysParse, llc);
+                return ii !== -1 ? ii : null;
+            }
+        }
+    }
+
+    function localeWeekdaysParse(weekdayName, format, strict) {
+        var i, mom, regex;
+
+        if (this._weekdaysParseExact) {
+            return handleStrictParse$1.call(this, weekdayName, format, strict);
+        }
+
+        if (!this._weekdaysParse) {
+            this._weekdaysParse = [];
+            this._minWeekdaysParse = [];
+            this._shortWeekdaysParse = [];
+            this._fullWeekdaysParse = [];
+        }
+
+        for (i = 0; i < 7; i++) {
+            // make the regex if we don't have it already
+
+            mom = createUTC([2000, 1]).day(i);
+            if (strict && !this._fullWeekdaysParse[i]) {
+                this._fullWeekdaysParse[i] = new RegExp(
+                    '^' + this.weekdays(mom, '').replace('.', '\\.?') + '$',
+                    'i'
+                );
+                this._shortWeekdaysParse[i] = new RegExp(
+                    '^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$',
+                    'i'
+                );
+                this._minWeekdaysParse[i] = new RegExp(
+                    '^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$',
+                    'i'
+                );
+            }
+            if (!this._weekdaysParse[i]) {
+                regex =
+                    '^' +
+                    this.weekdays(mom, '') +
+                    '|^' +
+                    this.weekdaysShort(mom, '') +
+                    '|^' +
+                    this.weekdaysMin(mom, '');
+                this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
+            }
+            // test the regex
+            if (
+                strict &&
+                format === 'dddd' &&
+                this._fullWeekdaysParse[i].test(weekdayName)
+            ) {
+                return i;
+            } else if (
+                strict &&
+                format === 'ddd' &&
+                this._shortWeekdaysParse[i].test(weekdayName)
+            ) {
+                return i;
+            } else if (
+                strict &&
+                format === 'dd' &&
+                this._minWeekdaysParse[i].test(weekdayName)
+            ) {
+                return i;
+            } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
+                return i;
+            }
+        }
+    }
+
+    // MOMENTS
+
+    function getSetDayOfWeek(input) {
+        if (!this.isValid()) {
+            return input != null ? this : NaN;
+        }
+        var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
+        if (input != null) {
+            input = parseWeekday(input, this.localeData());
+            return this.add(input - day, 'd');
+        } else {
+            return day;
+        }
+    }
+
+    function getSetLocaleDayOfWeek(input) {
+        if (!this.isValid()) {
+            return input != null ? this : NaN;
+        }
+        var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
+        return input == null ? weekday : this.add(input - weekday, 'd');
+    }
+
+    function getSetISODayOfWeek(input) {
+        if (!this.isValid()) {
+            return input != null ? this : NaN;
+        }
+
+        // behaves the same as moment#day except
+        // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
+        // as a setter, sunday should belong to the previous week.
+
+        if (input != null) {
+            var weekday = parseIsoWeekday(input, this.localeData());
+            return this.day(this.day() % 7 ? weekday : weekday - 7);
+        } else {
+            return this.day() || 7;
+        }
+    }
+
+    function weekdaysRegex(isStrict) {
+        if (this._weekdaysParseExact) {
+            if (!hasOwnProp(this, '_weekdaysRegex')) {
+                computeWeekdaysParse.call(this);
+            }
+            if (isStrict) {
+                return this._weekdaysStrictRegex;
+            } else {
+                return this._weekdaysRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_weekdaysRegex')) {
+                this._weekdaysRegex = defaultWeekdaysRegex;
+            }
+            return this._weekdaysStrictRegex && isStrict
+                ? this._weekdaysStrictRegex
+                : this._weekdaysRegex;
+        }
+    }
+
+    function weekdaysShortRegex(isStrict) {
+        if (this._weekdaysParseExact) {
+            if (!hasOwnProp(this, '_weekdaysRegex')) {
+                computeWeekdaysParse.call(this);
+            }
+            if (isStrict) {
+                return this._weekdaysShortStrictRegex;
+            } else {
+                return this._weekdaysShortRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_weekdaysShortRegex')) {
+                this._weekdaysShortRegex = defaultWeekdaysShortRegex;
+            }
+            return this._weekdaysShortStrictRegex && isStrict
+                ? this._weekdaysShortStrictRegex
+                : this._weekdaysShortRegex;
+        }
+    }
+
+    function weekdaysMinRegex(isStrict) {
+        if (this._weekdaysParseExact) {
+            if (!hasOwnProp(this, '_weekdaysRegex')) {
+                computeWeekdaysParse.call(this);
+            }
+            if (isStrict) {
+                return this._weekdaysMinStrictRegex;
+            } else {
+                return this._weekdaysMinRegex;
+            }
+        } else {
+            if (!hasOwnProp(this, '_weekdaysMinRegex')) {
+                this._weekdaysMinRegex = defaultWeekdaysMinRegex;
+            }
+            return this._weekdaysMinStrictRegex && isStrict
+                ? this._weekdaysMinStrictRegex
+                : this._weekdaysMinRegex;
+        }
+    }
+
+    function computeWeekdaysParse() {
+        function cmpLenRev(a, b) {
+            return b.length - a.length;
+        }
+
+        var minPieces = [],
+            shortPieces = [],
+            longPieces = [],
+            mixedPieces = [],
+            i,
+            mom,
+            minp,
+            shortp,
+            longp;
+        for (i = 0; i < 7; i++) {
+            // make the regex if we don't have it already
+            mom = createUTC([2000, 1]).day(i);
+            minp = regexEscape(this.weekdaysMin(mom, ''));
+            shortp = regexEscape(this.weekdaysShort(mom, ''));
+            longp = regexEscape(this.weekdays(mom, ''));
+            minPieces.push(minp);
+            shortPieces.push(shortp);
+            longPieces.push(longp);
+            mixedPieces.push(minp);
+            mixedPieces.push(shortp);
+            mixedPieces.push(longp);
+        }
+        // Sorting makes sure if one weekday (or abbr) is a prefix of another it
+        // will match the longer piece.
+        minPieces.sort(cmpLenRev);
+        shortPieces.sort(cmpLenRev);
+        longPieces.sort(cmpLenRev);
+        mixedPieces.sort(cmpLenRev);
+
+        this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+        this._weekdaysShortRegex = this._weekdaysRegex;
+        this._weekdaysMinRegex = this._weekdaysRegex;
+
+        this._weekdaysStrictRegex = new RegExp(
+            '^(' + longPieces.join('|') + ')',
+            'i'
+        );
+        this._weekdaysShortStrictRegex = new RegExp(
+            '^(' + shortPieces.join('|') + ')',
+            'i'
+        );
+        this._weekdaysMinStrictRegex = new RegExp(
+            '^(' + minPieces.join('|') + ')',
+            'i'
+        );
+    }
+
+    // FORMATTING
+
+    function hFormat() {
+        return this.hours() % 12 || 12;
+    }
+
+    function kFormat() {
+        return this.hours() || 24;
+    }
+
+    addFormatToken('H', ['HH', 2], 0, 'hour');
+    addFormatToken('h', ['hh', 2], 0, hFormat);
+    addFormatToken('k', ['kk', 2], 0, kFormat);
+
+    addFormatToken('hmm', 0, 0, function () {
+        return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
+    });
+
+    addFormatToken('hmmss', 0, 0, function () {
+        return (
+            '' +
+            hFormat.apply(this) +
+            zeroFill(this.minutes(), 2) +
+            zeroFill(this.seconds(), 2)
+        );
+    });
+
+    addFormatToken('Hmm', 0, 0, function () {
+        return '' + this.hours() + zeroFill(this.minutes(), 2);
+    });
+
+    addFormatToken('Hmmss', 0, 0, function () {
+        return (
+            '' +
+            this.hours() +
+            zeroFill(this.minutes(), 2) +
+            zeroFill(this.seconds(), 2)
+        );
+    });
+
+    function meridiem(token, lowercase) {
+        addFormatToken(token, 0, 0, function () {
+            return this.localeData().meridiem(
+                this.hours(),
+                this.minutes(),
+                lowercase
+            );
+        });
+    }
+
+    meridiem('a', true);
+    meridiem('A', false);
+
+    // ALIASES
+
+    addUnitAlias('hour', 'h');
+
+    // PRIORITY
+    addUnitPriority('hour', 13);
+
+    // PARSING
+
+    function matchMeridiem(isStrict, locale) {
+        return locale._meridiemParse;
+    }
+
+    addRegexToken('a', matchMeridiem);
+    addRegexToken('A', matchMeridiem);
+    addRegexToken('H', match1to2);
+    addRegexToken('h', match1to2);
+    addRegexToken('k', match1to2);
+    addRegexToken('HH', match1to2, match2);
+    addRegexToken('hh', match1to2, match2);
+    addRegexToken('kk', match1to2, match2);
+
+    addRegexToken('hmm', match3to4);
+    addRegexToken('hmmss', match5to6);
+    addRegexToken('Hmm', match3to4);
+    addRegexToken('Hmmss', match5to6);
+
+    addParseToken(['H', 'HH'], HOUR);
+    addParseToken(['k', 'kk'], function (input, array, config) {
+        var kInput = toInt(input);
+        array[HOUR] = kInput === 24 ? 0 : kInput;
+    });
+    addParseToken(['a', 'A'], function (input, array, config) {
+        config._isPm = config._locale.isPM(input);
+        config._meridiem = input;
+    });
+    addParseToken(['h', 'hh'], function (input, array, config) {
+        array[HOUR] = toInt(input);
+        getParsingFlags(config).bigHour = true;
+    });
+    addParseToken('hmm', function (input, array, config) {
+        var pos = input.length - 2;
+        array[HOUR] = toInt(input.substr(0, pos));
+        array[MINUTE] = toInt(input.substr(pos));
+        getParsingFlags(config).bigHour = true;
+    });
+    addParseToken('hmmss', function (input, array, config) {
+        var pos1 = input.length - 4,
+            pos2 = input.length - 2;
+        array[HOUR] = toInt(input.substr(0, pos1));
+        array[MINUTE] = toInt(input.substr(pos1, 2));
+        array[SECOND] = toInt(input.substr(pos2));
+        getParsingFlags(config).bigHour = true;
+    });
+    addParseToken('Hmm', function (input, array, config) {
+        var pos = input.length - 2;
+        array[HOUR] = toInt(input.substr(0, pos));
+        array[MINUTE] = toInt(input.substr(pos));
+    });
+    addParseToken('Hmmss', function (input, array, config) {
+        var pos1 = input.length - 4,
+            pos2 = input.length - 2;
+        array[HOUR] = toInt(input.substr(0, pos1));
+        array[MINUTE] = toInt(input.substr(pos1, 2));
+        array[SECOND] = toInt(input.substr(pos2));
+    });
+
+    // LOCALES
+
+    function localeIsPM(input) {
+        // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
+        // Using charAt should be more compatible.
+        return (input + '').toLowerCase().charAt(0) === 'p';
+    }
+
+    var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i,
+        // Setting the hour should keep the time, because the user explicitly
+        // specified which hour they want. So trying to maintain the same hour (in
+        // a new timezone) makes sense. Adding/subtracting hours does not follow
+        // this rule.
+        getSetHour = makeGetSet('Hours', true);
+
+    function localeMeridiem(hours, minutes, isLower) {
+        if (hours > 11) {
+            return isLower ? 'pm' : 'PM';
+        } else {
+            return isLower ? 'am' : 'AM';
+        }
+    }
+
+    var baseConfig = {
+        calendar: defaultCalendar,
+        longDateFormat: defaultLongDateFormat,
+        invalidDate: defaultInvalidDate,
+        ordinal: defaultOrdinal,
+        dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
+        relativeTime: defaultRelativeTime,
+
+        months: defaultLocaleMonths,
+        monthsShort: defaultLocaleMonthsShort,
+
+        week: defaultLocaleWeek,
+
+        weekdays: defaultLocaleWeekdays,
+        weekdaysMin: defaultLocaleWeekdaysMin,
+        weekdaysShort: defaultLocaleWeekdaysShort,
+
+        meridiemParse: defaultLocaleMeridiemParse,
+    };
+
+    // internal storage for locale config files
+    var locales = {},
+        localeFamilies = {},
+        globalLocale;
+
+    function commonPrefix(arr1, arr2) {
+        var i,
+            minl = Math.min(arr1.length, arr2.length);
+        for (i = 0; i < minl; i += 1) {
+            if (arr1[i] !== arr2[i]) {
+                return i;
+            }
+        }
+        return minl;
+    }
+
+    function normalizeLocale(key) {
+        return key ? key.toLowerCase().replace('_', '-') : key;
+    }
+
+    // pick the locale from the array
+    // try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
+    // substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
+    function chooseLocale(names) {
+        var i = 0,
+            j,
+            next,
+            locale,
+            split;
+
+        while (i < names.length) {
+            split = normalizeLocale(names[i]).split('-');
+            j = split.length;
+            next = normalizeLocale(names[i + 1]);
+            next = next ? next.split('-') : null;
+            while (j > 0) {
+                locale = loadLocale(split.slice(0, j).join('-'));
+                if (locale) {
+                    return locale;
+                }
+                if (
+                    next &&
+                    next.length >= j &&
+                    commonPrefix(split, next) >= j - 1
+                ) {
+                    //the next array item is better than a shallower substring of this one
+                    break;
+                }
+                j--;
+            }
+            i++;
+        }
+        return globalLocale;
+    }
+
+    function loadLocale(name) {
+        var oldLocale = null,
+            aliasedRequire;
+        // TODO: Find a better way to register and load all the locales in Node
+        if (
+            locales[name] === undefined &&
+            typeof module !== 'undefined' &&
+            module &&
+            module.exports
+        ) {
+            try {
+                oldLocale = globalLocale._abbr;
+                aliasedRequire = require;
+                aliasedRequire('./locale/' + name);
+                getSetGlobalLocale(oldLocale);
+            } catch (e) {
+                // mark as not found to avoid repeating expensive file require call causing high CPU
+                // when trying to find en-US, en_US, en-us for every format call
+                locales[name] = null; // null means not found
+            }
+        }
+        return locales[name];
+    }
+
+    // This function will load locale and then set the global locale.  If
+    // no arguments are passed in, it will simply return the current global
+    // locale key.
+    function getSetGlobalLocale(key, values) {
+        var data;
+        if (key) {
+            if (isUndefined(values)) {
+                data = getLocale(key);
+            } else {
+                data = defineLocale(key, values);
+            }
+
+            if (data) {
+                // moment.duration._locale = moment._locale = data;
+                globalLocale = data;
+            } else {
+                if (typeof console !== 'undefined' && console.warn) {
+                    //warn user if arguments are passed but the locale could not be set
+                    console.warn(
+                        'Locale ' + key + ' not found. Did you forget to load it?'
+                    );
+                }
+            }
+        }
+
+        return globalLocale._abbr;
+    }
+
+    function defineLocale(name, config) {
+        if (config !== null) {
+            var locale,
+                parentConfig = baseConfig;
+            config.abbr = name;
+            if (locales[name] != null) {
+                deprecateSimple(
+                    'defineLocaleOverride',
+                    'use moment.updateLocale(localeName, config) to change ' +
+                        'an existing locale. moment.defineLocale(localeName, ' +
+                        'config) should only be used for creating a new locale ' +
+                        'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.'
+                );
+                parentConfig = locales[name]._config;
+            } else if (config.parentLocale != null) {
+                if (locales[config.parentLocale] != null) {
+                    parentConfig = locales[config.parentLocale]._config;
+                } else {
+                    locale = loadLocale(config.parentLocale);
+                    if (locale != null) {
+                        parentConfig = locale._config;
+                    } else {
+                        if (!localeFamilies[config.parentLocale]) {
+                            localeFamilies[config.parentLocale] = [];
+                        }
+                        localeFamilies[config.parentLocale].push({
+                            name: name,
+                            config: config,
+                        });
+                        return null;
+                    }
+                }
+            }
+            locales[name] = new Locale(mergeConfigs(parentConfig, config));
+
+            if (localeFamilies[name]) {
+                localeFamilies[name].forEach(function (x) {
+                    defineLocale(x.name, x.config);
+                });
+            }
+
+            // backwards compat for now: also set the locale
+            // make sure we set the locale AFTER all child locales have been
+            // created, so we won't end up with the child locale set.
+            getSetGlobalLocale(name);
+
+            return locales[name];
+        } else {
+            // useful for testing
+            delete locales[name];
+            return null;
+        }
+    }
+
+    function updateLocale(name, config) {
+        if (config != null) {
+            var locale,
+                tmpLocale,
+                parentConfig = baseConfig;
+
+            if (locales[name] != null && locales[name].parentLocale != null) {
+                // Update existing child locale in-place to avoid memory-leaks
+                locales[name].set(mergeConfigs(locales[name]._config, config));
+            } else {
+                // MERGE
+                tmpLocale = loadLocale(name);
+                if (tmpLocale != null) {
+                    parentConfig = tmpLocale._config;
+                }
+                config = mergeConfigs(parentConfig, config);
+                if (tmpLocale == null) {
+                    // updateLocale is called for creating a new locale
+                    // Set abbr so it will have a name (getters return
+                    // undefined otherwise).
+                    config.abbr = name;
+                }
+                locale = new Locale(config);
+                locale.parentLocale = locales[name];
+                locales[name] = locale;
+            }
+
+            // backwards compat for now: also set the locale
+            getSetGlobalLocale(name);
+        } else {
+            // pass null for config to unupdate, useful for tests
+            if (locales[name] != null) {
+                if (locales[name].parentLocale != null) {
+                    locales[name] = locales[name].parentLocale;
+                    if (name === getSetGlobalLocale()) {
+                        getSetGlobalLocale(name);
+                    }
+                } else if (locales[name] != null) {
+                    delete locales[name];
+                }
+            }
+        }
+        return locales[name];
+    }
+
+    // returns locale data
+    function getLocale(key) {
+        var locale;
+
+        if (key && key._locale && key._locale._abbr) {
+            key = key._locale._abbr;
+        }
+
+        if (!key) {
+            return globalLocale;
+        }
+
+        if (!isArray(key)) {
+            //short-circuit everything else
+            locale = loadLocale(key);
+            if (locale) {
+                return locale;
+            }
+            key = [key];
+        }
+
+        return chooseLocale(key);
+    }
+
+    function listLocales() {
+        return keys(locales);
+    }
+
+    function checkOverflow(m) {
+        var overflow,
+            a = m._a;
+
+        if (a && getParsingFlags(m).overflow === -2) {
+            overflow =
+                a[MONTH] < 0 || a[MONTH] > 11
+                    ? MONTH
+                    : a[DATE] < 1 || a[DATE] > daysInMonth(a[YEAR], a[MONTH])
+                    ? DATE
+                    : a[HOUR] < 0 ||
+                      a[HOUR] > 24 ||
+                      (a[HOUR] === 24 &&
+                          (a[MINUTE] !== 0 ||
+                              a[SECOND] !== 0 ||
+                              a[MILLISECOND] !== 0))
+                    ? HOUR
+                    : a[MINUTE] < 0 || a[MINUTE] > 59
+                    ? MINUTE
+                    : a[SECOND] < 0 || a[SECOND] > 59
+                    ? SECOND
+                    : a[MILLISECOND] < 0 || a[MILLISECOND] > 999
+                    ? MILLISECOND
+                    : -1;
+
+            if (
+                getParsingFlags(m)._overflowDayOfYear &&
+                (overflow < YEAR || overflow > DATE)
+            ) {
+                overflow = DATE;
+            }
+            if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
+                overflow = WEEK;
+            }
+            if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
+                overflow = WEEKDAY;
+            }
+
+            getParsingFlags(m).overflow = overflow;
+        }
+
+        return m;
+    }
+
+    // iso 8601 regex
+    // 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
+    var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
+        basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d|))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
+        tzRegex = /Z|[+-]\d\d(?::?\d\d)?/,
+        isoDates = [
+            ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
+            ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
+            ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
+            ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
+            ['YYYY-DDD', /\d{4}-\d{3}/],
+            ['YYYY-MM', /\d{4}-\d\d/, false],
+            ['YYYYYYMMDD', /[+-]\d{10}/],
+            ['YYYYMMDD', /\d{8}/],
+            ['GGGG[W]WWE', /\d{4}W\d{3}/],
+            ['GGGG[W]WW', /\d{4}W\d{2}/, false],
+            ['YYYYDDD', /\d{7}/],
+            ['YYYYMM', /\d{6}/, false],
+            ['YYYY', /\d{4}/, false],
+        ],
+        // iso time formats and regexes
+        isoTimes = [
+            ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
+            ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
+            ['HH:mm:ss', /\d\d:\d\d:\d\d/],
+            ['HH:mm', /\d\d:\d\d/],
+            ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
+            ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
+            ['HHmmss', /\d\d\d\d\d\d/],
+            ['HHmm', /\d\d\d\d/],
+            ['HH', /\d\d/],
+        ],
+        aspNetJsonRegex = /^\/?Date\((-?\d+)/i,
+        // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
+        rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/,
+        obsOffsets = {
+            UT: 0,
+            GMT: 0,
+            EDT: -4 * 60,
+            EST: -5 * 60,
+            CDT: -5 * 60,
+            CST: -6 * 60,
+            MDT: -6 * 60,
+            MST: -7 * 60,
+            PDT: -7 * 60,
+            PST: -8 * 60,
+        };
+
+    // date from iso format
+    function configFromISO(config) {
+        var i,
+            l,
+            string = config._i,
+            match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
+            allowTime,
+            dateFormat,
+            timeFormat,
+            tzFormat;
+
+        if (match) {
+            getParsingFlags(config).iso = true;
+
+            for (i = 0, l = isoDates.length; i < l; i++) {
+                if (isoDates[i][1].exec(match[1])) {
+                    dateFormat = isoDates[i][0];
+                    allowTime = isoDates[i][2] !== false;
+                    break;
+                }
+            }
+            if (dateFormat == null) {
+                config._isValid = false;
+                return;
+            }
+            if (match[3]) {
+                for (i = 0, l = isoTimes.length; i < l; i++) {
+                    if (isoTimes[i][1].exec(match[3])) {
+                        // match[2] should be 'T' or space
+                        timeFormat = (match[2] || ' ') + isoTimes[i][0];
+                        break;
+                    }
+                }
+                if (timeFormat == null) {
+                    config._isValid = false;
+                    return;
+                }
+            }
+            if (!allowTime && timeFormat != null) {
+                config._isValid = false;
+                return;
+            }
+            if (match[4]) {
+                if (tzRegex.exec(match[4])) {
+                    tzFormat = 'Z';
+                } else {
+                    config._isValid = false;
+                    return;
+                }
+            }
+            config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
+            configFromStringAndFormat(config);
+        } else {
+            config._isValid = false;
+        }
+    }
+
+    function extractFromRFC2822Strings(
+        yearStr,
+        monthStr,
+        dayStr,
+        hourStr,
+        minuteStr,
+        secondStr
+    ) {
+        var result = [
+            untruncateYear(yearStr),
+            defaultLocaleMonthsShort.indexOf(monthStr),
+            parseInt(dayStr, 10),
+            parseInt(hourStr, 10),
+            parseInt(minuteStr, 10),
+        ];
+
+        if (secondStr) {
+            result.push(parseInt(secondStr, 10));
+        }
+
+        return result;
+    }
+
+    function untruncateYear(yearStr) {
+        var year = parseInt(yearStr, 10);
+        if (year <= 49) {
+            return 2000 + year;
+        } else if (year <= 999) {
+            return 1900 + year;
+        }
+        return year;
+    }
+
+    function preprocessRFC2822(s) {
+        // Remove comments and folding whitespace and replace multiple-spaces with a single space
+        return s
+            .replace(/\([^)]*\)|[\n\t]/g, ' ')
+            .replace(/(\s\s+)/g, ' ')
+            .replace(/^\s\s*/, '')
+            .replace(/\s\s*$/, '');
+    }
+
+    function checkWeekday(weekdayStr, parsedInput, config) {
+        if (weekdayStr) {
+            // TODO: Replace the vanilla JS Date object with an independent day-of-week check.
+            var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
+                weekdayActual = new Date(
+                    parsedInput[0],
+                    parsedInput[1],
+                    parsedInput[2]
+                ).getDay();
+            if (weekdayProvided !== weekdayActual) {
+                getParsingFlags(config).weekdayMismatch = true;
+                config._isValid = false;
+                return false;
+            }
+        }
+        return true;
+    }
+
+    function calculateOffset(obsOffset, militaryOffset, numOffset) {
+        if (obsOffset) {
+            return obsOffsets[obsOffset];
+        } else if (militaryOffset) {
+            // the only allowed military tz is Z
+            return 0;
+        } else {
+            var hm = parseInt(numOffset, 10),
+                m = hm % 100,
+                h = (hm - m) / 100;
+            return h * 60 + m;
+        }
+    }
+
+    // date and time from ref 2822 format
+    function configFromRFC2822(config) {
+        var match = rfc2822.exec(preprocessRFC2822(config._i)),
+            parsedArray;
+        if (match) {
+            parsedArray = extractFromRFC2822Strings(
+                match[4],
+                match[3],
+                match[2],
+                match[5],
+                match[6],
+                match[7]
+            );
+            if (!checkWeekday(match[1], parsedArray, config)) {
+                return;
+            }
+
+            config._a = parsedArray;
+            config._tzm = calculateOffset(match[8], match[9], match[10]);
+
+            config._d = createUTCDate.apply(null, config._a);
+            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
+
+            getParsingFlags(config).rfc2822 = true;
+        } else {
+            config._isValid = false;
+        }
+    }
+
+    // date from 1) ASP.NET, 2) ISO, 3) RFC 2822 formats, or 4) optional fallback if parsing isn't strict
+    function configFromString(config) {
+        var matched = aspNetJsonRegex.exec(config._i);
+        if (matched !== null) {
+            config._d = new Date(+matched[1]);
+            return;
+        }
+
+        configFromISO(config);
+        if (config._isValid === false) {
+            delete config._isValid;
+        } else {
+            return;
+        }
+
+        configFromRFC2822(config);
+        if (config._isValid === false) {
+            delete config._isValid;
+        } else {
+            return;
+        }
+
+        if (config._strict) {
+            config._isValid = false;
+        } else {
+            // Final attempt, use Input Fallback
+            hooks.createFromInputFallback(config);
+        }
+    }
+
+    hooks.createFromInputFallback = deprecate(
+        'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
+            'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
+            'discouraged. Please refer to http://momentjs.com/guides/#/warnings/js-date/ for more info.',
+        function (config) {
+            config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
+        }
+    );
+
+    // Pick the first defined of two or three arguments.
+    function defaults(a, b, c) {
+        if (a != null) {
+            return a;
+        }
+        if (b != null) {
+            return b;
+        }
+        return c;
+    }
+
+    function currentDateArray(config) {
+        // hooks is actually the exported moment object
+        var nowValue = new Date(hooks.now());
+        if (config._useUTC) {
+            return [
+                nowValue.getUTCFullYear(),
+                nowValue.getUTCMonth(),
+                nowValue.getUTCDate(),
+            ];
+        }
+        return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
+    }
+
+    // convert an array to a date.
+    // the array should mirror the parameters below
+    // note: all values past the year are optional and will default to the lowest possible value.
+    // [year, month, day , hour, minute, second, millisecond]
+    function configFromArray(config) {
+        var i,
+            date,
+            input = [],
+            currentDate,
+            expectedWeekday,
+            yearToUse;
+
+        if (config._d) {
+            return;
+        }
+
+        currentDate = currentDateArray(config);
+
+        //compute day of the year from weeks and weekdays
+        if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
+            dayOfYearFromWeekInfo(config);
+        }
+
+        //if the day of the year is set, figure out what it is
+        if (config._dayOfYear != null) {
+            yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);
+
+            if (
+                config._dayOfYear > daysInYear(yearToUse) ||
+                config._dayOfYear === 0
+            ) {
+                getParsingFlags(config)._overflowDayOfYear = true;
+            }
+
+            date = createUTCDate(yearToUse, 0, config._dayOfYear);
+            config._a[MONTH] = date.getUTCMonth();
+            config._a[DATE] = date.getUTCDate();
+        }
+
+        // Default to current date.
+        // * if no year, month, day of month are given, default to today
+        // * if day of month is given, default month and year
+        // * if month is given, default only year
+        // * if year is given, don't default anything
+        for (i = 0; i < 3 && config._a[i] == null; ++i) {
+            config._a[i] = input[i] = currentDate[i];
+        }
+
+        // Zero out whatever was not defaulted, including time
+        for (; i < 7; i++) {
+            config._a[i] = input[i] =
+                config._a[i] == null ? (i === 2 ? 1 : 0) : config._a[i];
+        }
+
+        // Check for 24:00:00.000
+        if (
+            config._a[HOUR] === 24 &&
+            config._a[MINUTE] === 0 &&
+            config._a[SECOND] === 0 &&
+            config._a[MILLISECOND] === 0
+        ) {
+            config._nextDay = true;
+            config._a[HOUR] = 0;
+        }
+
+        config._d = (config._useUTC ? createUTCDate : createDate).apply(
+            null,
+            input
+        );
+        expectedWeekday = config._useUTC
+            ? config._d.getUTCDay()
+            : config._d.getDay();
+
+        // Apply timezone offset from input. The actual utcOffset can be changed
+        // with parseZone.
+        if (config._tzm != null) {
+            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
+        }
+
+        if (config._nextDay) {
+            config._a[HOUR] = 24;
+        }
+
+        // check for mismatching day of week
+        if (
+            config._w &&
+            typeof config._w.d !== 'undefined' &&
+            config._w.d !== expectedWeekday
+        ) {
+            getParsingFlags(config).weekdayMismatch = true;
+        }
+    }
+
+    function dayOfYearFromWeekInfo(config) {
+        var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow, curWeek;
+
+        w = config._w;
+        if (w.GG != null || w.W != null || w.E != null) {
+            dow = 1;
+            doy = 4;
+
+            // TODO: We need to take the current isoWeekYear, but that depends on
+            // how we interpret now (local, utc, fixed offset). So create
+            // a now version of current config (take local/utc/offset flags, and
+            // create now).
+            weekYear = defaults(
+                w.GG,
+                config._a[YEAR],
+                weekOfYear(createLocal(), 1, 4).year
+            );
+            week = defaults(w.W, 1);
+            weekday = defaults(w.E, 1);
+            if (weekday < 1 || weekday > 7) {
+                weekdayOverflow = true;
+            }
+        } else {
+            dow = config._locale._week.dow;
+            doy = config._locale._week.doy;
+
+            curWeek = weekOfYear(createLocal(), dow, doy);
+
+            weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);
+
+            // Default to current week.
+            week = defaults(w.w, curWeek.week);
+
+            if (w.d != null) {
+                // weekday -- low day numbers are considered next week
+                weekday = w.d;
+                if (weekday < 0 || weekday > 6) {
+                    weekdayOverflow = true;
+                }
+            } else if (w.e != null) {
+                // local weekday -- counting starts from beginning of week
+                weekday = w.e + dow;
+                if (w.e < 0 || w.e > 6) {
+                    weekdayOverflow = true;
+                }
+            } else {
+                // default to beginning of week
+                weekday = dow;
+            }
+        }
+        if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
+            getParsingFlags(config)._overflowWeeks = true;
+        } else if (weekdayOverflow != null) {
+            getParsingFlags(config)._overflowWeekday = true;
+        } else {
+            temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
+            config._a[YEAR] = temp.year;
+            config._dayOfYear = temp.dayOfYear;
+        }
+    }
+
+    // constant that refers to the ISO standard
+    hooks.ISO_8601 = function () {};
+
+    // constant that refers to the RFC 2822 form
+    hooks.RFC_2822 = function () {};
+
+    // date from string and format string
+    function configFromStringAndFormat(config) {
+        // TODO: Move this to another part of the creation flow to prevent circular deps
+        if (config._f === hooks.ISO_8601) {
+            configFromISO(config);
+            return;
+        }
+        if (config._f === hooks.RFC_2822) {
+            configFromRFC2822(config);
+            return;
+        }
+        config._a = [];
+        getParsingFlags(config).empty = true;
+
+        // This array is used to make a Date, either with `new Date` or `Date.UTC`
+        var string = '' + config._i,
+            i,
+            parsedInput,
+            tokens,
+            token,
+            skipped,
+            stringLength = string.length,
+            totalParsedInputLength = 0,
+            era;
+
+        tokens =
+            expandFormat(config._f, config._locale).match(formattingTokens) || [];
+
+        for (i = 0; i < tokens.length; i++) {
+            token = tokens[i];
+            parsedInput = (string.match(getParseRegexForToken(token, config)) ||
+                [])[0];
+            if (parsedInput) {
+                skipped = string.substr(0, string.indexOf(parsedInput));
+                if (skipped.length > 0) {
+                    getParsingFlags(config).unusedInput.push(skipped);
+                }
+                string = string.slice(
+                    string.indexOf(parsedInput) + parsedInput.length
+                );
+                totalParsedInputLength += parsedInput.length;
+            }
+            // don't parse if it's not a known token
+            if (formatTokenFunctions[token]) {
+                if (parsedInput) {
+                    getParsingFlags(config).empty = false;
+                } else {
+                    getParsingFlags(config).unusedTokens.push(token);
+                }
+                addTimeToArrayFromToken(token, parsedInput, config);
+            } else if (config._strict && !parsedInput) {
+                getParsingFlags(config).unusedTokens.push(token);
+            }
+        }
+
+        // add remaining unparsed input length to the string
+        getParsingFlags(config).charsLeftOver =
+            stringLength - totalParsedInputLength;
+        if (string.length > 0) {
+            getParsingFlags(config).unusedInput.push(string);
+        }
+
+        // clear _12h flag if hour is <= 12
+        if (
+            config._a[HOUR] <= 12 &&
+            getParsingFlags(config).bigHour === true &&
+            config._a[HOUR] > 0
+        ) {
+            getParsingFlags(config).bigHour = undefined;
+        }
+
+        getParsingFlags(config).parsedDateParts = config._a.slice(0);
+        getParsingFlags(config).meridiem = config._meridiem;
+        // handle meridiem
+        config._a[HOUR] = meridiemFixWrap(
+            config._locale,
+            config._a[HOUR],
+            config._meridiem
+        );
+
+        // handle era
+        era = getParsingFlags(config).era;
+        if (era !== null) {
+            config._a[YEAR] = config._locale.erasConvertYear(era, config._a[YEAR]);
+        }
+
+        configFromArray(config);
+        checkOverflow(config);
+    }
+
+    function meridiemFixWrap(locale, hour, meridiem) {
+        var isPm;
+
+        if (meridiem == null) {
+            // nothing to do
+            return hour;
+        }
+        if (locale.meridiemHour != null) {
+            return locale.meridiemHour(hour, meridiem);
+        } else if (locale.isPM != null) {
+            // Fallback
+            isPm = locale.isPM(meridiem);
+            if (isPm && hour < 12) {
+                hour += 12;
+            }
+            if (!isPm && hour === 12) {
+                hour = 0;
+            }
+            return hour;
+        } else {
+            // this is not supposed to happen
+            return hour;
+        }
+    }
+
+    // date from string and array of format strings
+    function configFromStringAndArray(config) {
+        var tempConfig,
+            bestMoment,
+            scoreToBeat,
+            i,
+            currentScore,
+            validFormatFound,
+            bestFormatIsValid = false;
+
+        if (config._f.length === 0) {
+            getParsingFlags(config).invalidFormat = true;
+            config._d = new Date(NaN);
+            return;
+        }
+
+        for (i = 0; i < config._f.length; i++) {
+            currentScore = 0;
+            validFormatFound = false;
+            tempConfig = copyConfig({}, config);
+            if (config._useUTC != null) {
+                tempConfig._useUTC = config._useUTC;
+            }
+            tempConfig._f = config._f[i];
+            configFromStringAndFormat(tempConfig);
+
+            if (isValid(tempConfig)) {
+                validFormatFound = true;
+            }
+
+            // if there is any input that was not parsed add a penalty for that format
+            currentScore += getParsingFlags(tempConfig).charsLeftOver;
+
+            //or tokens
+            currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;
+
+            getParsingFlags(tempConfig).score = currentScore;
+
+            if (!bestFormatIsValid) {
+                if (
+                    scoreToBeat == null ||
+                    currentScore < scoreToBeat ||
+                    validFormatFound
+                ) {
+                    scoreToBeat = currentScore;
+                    bestMoment = tempConfig;
+                    if (validFormatFound) {
+                        bestFormatIsValid = true;
+                    }
+                }
+            } else {
+                if (currentScore < scoreToBeat) {
+                    scoreToBeat = currentScore;
+                    bestMoment = tempConfig;
+                }
+            }
+        }
+
+        extend(config, bestMoment || tempConfig);
+    }
+
+    function configFromObject(config) {
+        if (config._d) {
+            return;
+        }
+
+        var i = normalizeObjectUnits(config._i),
+            dayOrDate = i.day === undefined ? i.date : i.day;
+        config._a = map(
+            [i.year, i.month, dayOrDate, i.hour, i.minute, i.second, i.millisecond],
+            function (obj) {
+                return obj && parseInt(obj, 10);
+            }
+        );
+
+        configFromArray(config);
+    }
+
+    function createFromConfig(config) {
+        var res = new Moment(checkOverflow(prepareConfig(config)));
+        if (res._nextDay) {
+            // Adding is smart enough around DST
+            res.add(1, 'd');
+            res._nextDay = undefined;
+        }
+
+        return res;
+    }
+
+    function prepareConfig(config) {
+        var input = config._i,
+            format = config._f;
+
+        config._locale = config._locale || getLocale(config._l);
+
+        if (input === null || (format === undefined && input === '')) {
+            return createInvalid({ nullInput: true });
+        }
+
+        if (typeof input === 'string') {
+            config._i = input = config._locale.preparse(input);
+        }
+
+        if (isMoment(input)) {
+            return new Moment(checkOverflow(input));
+        } else if (isDate(input)) {
+            config._d = input;
+        } else if (isArray(format)) {
+            configFromStringAndArray(config);
+        } else if (format) {
+            configFromStringAndFormat(config);
+        } else {
+            configFromInput(config);
+        }
+
+        if (!isValid(config)) {
+            config._d = null;
+        }
+
+        return config;
+    }
+
+    function configFromInput(config) {
+        var input = config._i;
+        if (isUndefined(input)) {
+            config._d = new Date(hooks.now());
+        } else if (isDate(input)) {
+            config._d = new Date(input.valueOf());
+        } else if (typeof input === 'string') {
+            configFromString(config);
+        } else if (isArray(input)) {
+            config._a = map(input.slice(0), function (obj) {
+                return parseInt(obj, 10);
+            });
+            configFromArray(config);
+        } else if (isObject(input)) {
+            configFromObject(config);
+        } else if (isNumber(input)) {
+            // from milliseconds
+            config._d = new Date(input);
+        } else {
+            hooks.createFromInputFallback(config);
+        }
+    }
+
+    function createLocalOrUTC(input, format, locale, strict, isUTC) {
+        var c = {};
+
+        if (format === true || format === false) {
+            strict = format;
+            format = undefined;
+        }
+
+        if (locale === true || locale === false) {
+            strict = locale;
+            locale = undefined;
+        }
+
+        if (
+            (isObject(input) && isObjectEmpty(input)) ||
+            (isArray(input) && input.length === 0)
+        ) {
+            input = undefined;
+        }
+        // object construction must be done this way.
+        // https://github.com/moment/moment/issues/1423
+        c._isAMomentObject = true;
+        c._useUTC = c._isUTC = isUTC;
+        c._l = locale;
+        c._i = input;
+        c._f = format;
+        c._strict = strict;
+
+        return createFromConfig(c);
+    }
+
+    function createLocal(input, format, locale, strict) {
+        return createLocalOrUTC(input, format, locale, strict, false);
+    }
+
+    var prototypeMin = deprecate(
+            'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
+            function () {
+                var other = createLocal.apply(null, arguments);
+                if (this.isValid() && other.isValid()) {
+                    return other < this ? this : other;
+                } else {
+                    return createInvalid();
+                }
+            }
+        ),
+        prototypeMax = deprecate(
+            'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
+            function () {
+                var other = createLocal.apply(null, arguments);
+                if (this.isValid() && other.isValid()) {
+                    return other > this ? this : other;
+                } else {
+                    return createInvalid();
+                }
+            }
+        );
+
+    // Pick a moment m from moments so that m[fn](other) is true for all
+    // other. This relies on the function fn to be transitive.
+    //
+    // moments should either be an array of moment objects or an array, whose
+    // first element is an array of moment objects.
+    function pickBy(fn, moments) {
+        var res, i;
+        if (moments.length === 1 && isArray(moments[0])) {
+            moments = moments[0];
+        }
+        if (!moments.length) {
+            return createLocal();
+        }
+        res = moments[0];
+        for (i = 1; i < moments.length; ++i) {
+            if (!moments[i].isValid() || moments[i][fn](res)) {
+                res = moments[i];
+            }
+        }
+        return res;
+    }
+
+    // TODO: Use [].sort instead?
+    function min() {
+        var args = [].slice.call(arguments, 0);
+
+        return pickBy('isBefore', args);
+    }
+
+    function max() {
+        var args = [].slice.call(arguments, 0);
+
+        return pickBy('isAfter', args);
+    }
+
+    var now = function () {
+        return Date.now ? Date.now() : +new Date();
+    };
+
+    var ordering = [
+        'year',
+        'quarter',
+        'month',
+        'week',
+        'day',
+        'hour',
+        'minute',
+        'second',
+        'millisecond',
+    ];
+
+    function isDurationValid(m) {
+        var key,
+            unitHasDecimal = false,
+            i;
+        for (key in m) {
+            if (
+                hasOwnProp(m, key) &&
+                !(
+                    indexOf.call(ordering, key) !== -1 &&
+                    (m[key] == null || !isNaN(m[key]))
+                )
+            ) {
+                return false;
+            }
+        }
+
+        for (i = 0; i < ordering.length; ++i) {
+            if (m[ordering[i]]) {
+                if (unitHasDecimal) {
+                    return false; // only allow non-integers for smallest unit
+                }
+                if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
+                    unitHasDecimal = true;
+                }
+            }
+        }
+
+        return true;
+    }
+
+    function isValid$1() {
+        return this._isValid;
+    }
+
+    function createInvalid$1() {
+        return createDuration(NaN);
+    }
+
+    function Duration(duration) {
+        var normalizedInput = normalizeObjectUnits(duration),
+            years = normalizedInput.year || 0,
+            quarters = normalizedInput.quarter || 0,
+            months = normalizedInput.month || 0,
+            weeks = normalizedInput.week || normalizedInput.isoWeek || 0,
+            days = normalizedInput.day || 0,
+            hours = normalizedInput.hour || 0,
+            minutes = normalizedInput.minute || 0,
+            seconds = normalizedInput.second || 0,
+            milliseconds = normalizedInput.millisecond || 0;
+
+        this._isValid = isDurationValid(normalizedInput);
+
+        // representation for dateAddRemove
+        this._milliseconds =
+            +milliseconds +
+            seconds * 1e3 + // 1000
+            minutes * 6e4 + // 1000 * 60
+            hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
+        // Because of dateAddRemove treats 24 hours as different from a
+        // day when working around DST, we need to store them separately
+        this._days = +days + weeks * 7;
+        // It is impossible to translate months into days without knowing
+        // which months you are are talking about, so we have to store
+        // it separately.
+        this._months = +months + quarters * 3 + years * 12;
+
+        this._data = {};
+
+        this._locale = getLocale();
+
+        this._bubble();
+    }
+
+    function isDuration(obj) {
+        return obj instanceof Duration;
+    }
+
+    function absRound(number) {
+        if (number < 0) {
+            return Math.round(-1 * number) * -1;
+        } else {
+            return Math.round(number);
+        }
+    }
+
+    // compare two arrays, return the number of differences
+    function compareArrays(array1, array2, dontConvert) {
+        var len = Math.min(array1.length, array2.length),
+            lengthDiff = Math.abs(array1.length - array2.length),
+            diffs = 0,
+            i;
+        for (i = 0; i < len; i++) {
+            if (
+                (dontConvert && array1[i] !== array2[i]) ||
+                (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))
+            ) {
+                diffs++;
+            }
+        }
+        return diffs + lengthDiff;
+    }
+
+    // FORMATTING
+
+    function offset(token, separator) {
+        addFormatToken(token, 0, 0, function () {
+            var offset = this.utcOffset(),
+                sign = '+';
+            if (offset < 0) {
+                offset = -offset;
+                sign = '-';
+            }
+            return (
+                sign +
+                zeroFill(~~(offset / 60), 2) +
+                separator +
+                zeroFill(~~offset % 60, 2)
+            );
+        });
+    }
+
+    offset('Z', ':');
+    offset('ZZ', '');
+
+    // PARSING
+
+    addRegexToken('Z', matchShortOffset);
+    addRegexToken('ZZ', matchShortOffset);
+    addParseToken(['Z', 'ZZ'], function (input, array, config) {
+        config._useUTC = true;
+        config._tzm = offsetFromString(matchShortOffset, input);
+    });
+
+    // HELPERS
+
+    // timezone chunker
+    // '+10:00' > ['10',  '00']
+    // '-1530'  > ['-15', '30']
+    var chunkOffset = /([\+\-]|\d\d)/gi;
+
+    function offsetFromString(matcher, string) {
+        var matches = (string || '').match(matcher),
+            chunk,
+            parts,
+            minutes;
+
+        if (matches === null) {
+            return null;
+        }
+
+        chunk = matches[matches.length - 1] || [];
+        parts = (chunk + '').match(chunkOffset) || ['-', 0, 0];
+        minutes = +(parts[1] * 60) + toInt(parts[2]);
+
+        return minutes === 0 ? 0 : parts[0] === '+' ? minutes : -minutes;
+    }
+
+    // Return a moment from input, that is local/utc/zone equivalent to model.
+    function cloneWithOffset(input, model) {
+        var res, diff;
+        if (model._isUTC) {
+            res = model.clone();
+            diff =
+                (isMoment(input) || isDate(input)
+                    ? input.valueOf()
+                    : createLocal(input).valueOf()) - res.valueOf();
+            // Use low-level api, because this fn is low-level api.
+            res._d.setTime(res._d.valueOf() + diff);
+            hooks.updateOffset(res, false);
+            return res;
+        } else {
+            return createLocal(input).local();
+        }
+    }
+
+    function getDateOffset(m) {
+        // On Firefox.24 Date#getTimezoneOffset returns a floating point.
+        // https://github.com/moment/moment/pull/1871
+        return -Math.round(m._d.getTimezoneOffset());
+    }
+
+    // HOOKS
+
+    // This function will be called whenever a moment is mutated.
+    // It is intended to keep the offset in sync with the timezone.
+    hooks.updateOffset = function () {};
+
+    // MOMENTS
+
+    // keepLocalTime = true means only change the timezone, without
+    // affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
+    // 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
+    // +0200, so we adjust the time as needed, to be valid.
+    //
+    // Keeping the time actually adds/subtracts (one hour)
+    // from the actual represented time. That is why we call updateOffset
+    // a second time. In case it wants us to change the offset again
+    // _changeInProgress == true case, then we have to adjust, because
+    // there is no such time in the given timezone.
+    function getSetOffset(input, keepLocalTime, keepMinutes) {
+        var offset = this._offset || 0,
+            localAdjust;
+        if (!this.isValid()) {
+            return input != null ? this : NaN;
+        }
+        if (input != null) {
+            if (typeof input === 'string') {
+                input = offsetFromString(matchShortOffset, input);
+                if (input === null) {
+                    return this;
+                }
+            } else if (Math.abs(input) < 16 && !keepMinutes) {
+                input = input * 60;
+            }
+            if (!this._isUTC && keepLocalTime) {
+                localAdjust = getDateOffset(this);
+            }
+            this._offset = input;
+            this._isUTC = true;
+            if (localAdjust != null) {
+                this.add(localAdjust, 'm');
+            }
+            if (offset !== input) {
+                if (!keepLocalTime || this._changeInProgress) {
+                    addSubtract(
+                        this,
+                        createDuration(input - offset, 'm'),
+                        1,
+                        false
+                    );
+                } else if (!this._changeInProgress) {
+                    this._changeInProgress = true;
+                    hooks.updateOffset(this, true);
+                    this._changeInProgress = null;
+                }
+            }
+            return this;
+        } else {
+            return this._isUTC ? offset : getDateOffset(this);
+        }
+    }
+
+    function getSetZone(input, keepLocalTime) {
+        if (input != null) {
+            if (typeof input !== 'string') {
+                input = -input;
+            }
+
+            this.utcOffset(input, keepLocalTime);
+
+            return this;
+        } else {
+            return -this.utcOffset();
+        }
+    }
+
+    function setOffsetToUTC(keepLocalTime) {
+        return this.utcOffset(0, keepLocalTime);
+    }
+
+    function setOffsetToLocal(keepLocalTime) {
+        if (this._isUTC) {
+            this.utcOffset(0, keepLocalTime);
+            this._isUTC = false;
+
+            if (keepLocalTime) {
+                this.subtract(getDateOffset(this), 'm');
+            }
+        }
+        return this;
+    }
+
+    function setOffsetToParsedOffset() {
+        if (this._tzm != null) {
+            this.utcOffset(this._tzm, false, true);
+        } else if (typeof this._i === 'string') {
+            var tZone = offsetFromString(matchOffset, this._i);
+            if (tZone != null) {
+                this.utcOffset(tZone);
+            } else {
+                this.utcOffset(0, true);
+            }
+        }
+        return this;
+    }
+
+    function hasAlignedHourOffset(input) {
+        if (!this.isValid()) {
+            return false;
+        }
+        input = input ? createLocal(input).utcOffset() : 0;
+
+        return (this.utcOffset() - input) % 60 === 0;
+    }
+
+    function isDaylightSavingTime() {
+        return (
+            this.utcOffset() > this.clone().month(0).utcOffset() ||
+            this.utcOffset() > this.clone().month(5).utcOffset()
+        );
+    }
+
+    function isDaylightSavingTimeShifted() {
+        if (!isUndefined(this._isDSTShifted)) {
+            return this._isDSTShifted;
+        }
+
+        var c = {},
+            other;
+
+        copyConfig(c, this);
+        c = prepareConfig(c);
+
+        if (c._a) {
+            other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
+            this._isDSTShifted =
+                this.isValid() && compareArrays(c._a, other.toArray()) > 0;
+        } else {
+            this._isDSTShifted = false;
+        }
+
+        return this._isDSTShifted;
+    }
+
+    function isLocal() {
+        return this.isValid() ? !this._isUTC : false;
+    }
+
+    function isUtcOffset() {
+        return this.isValid() ? this._isUTC : false;
+    }
+
+    function isUtc() {
+        return this.isValid() ? this._isUTC && this._offset === 0 : false;
+    }
+
+    // ASP.NET json date format regex
+    var aspNetRegex = /^(-|\+)?(?:(\d*)[. ])?(\d+):(\d+)(?::(\d+)(\.\d*)?)?$/,
+        // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
+        // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
+        // and further modified to allow for strings containing both week and day
+        isoRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;
+
+    function createDuration(input, key) {
+        var duration = input,
+            // matching against regexp is expensive, do it on demand
+            match = null,
+            sign,
+            ret,
+            diffRes;
+
+        if (isDuration(input)) {
+            duration = {
+                ms: input._milliseconds,
+                d: input._days,
+                M: input._months,
+            };
+        } else if (isNumber(input) || !isNaN(+input)) {
+            duration = {};
+            if (key) {
+                duration[key] = +input;
+            } else {
+                duration.milliseconds = +input;
+            }
+        } else if ((match = aspNetRegex.exec(input))) {
+            sign = match[1] === '-' ? -1 : 1;
+            duration = {
+                y: 0,
+                d: toInt(match[DATE]) * sign,
+                h: toInt(match[HOUR]) * sign,
+                m: toInt(match[MINUTE]) * sign,
+                s: toInt(match[SECOND]) * sign,
+                ms: toInt(absRound(match[MILLISECOND] * 1000)) * sign, // the millisecond decimal point is included in the match
+            };
+        } else if ((match = isoRegex.exec(input))) {
+            sign = match[1] === '-' ? -1 : 1;
+            duration = {
+                y: parseIso(match[2], sign),
+                M: parseIso(match[3], sign),
+                w: parseIso(match[4], sign),
+                d: parseIso(match[5], sign),
+                h: parseIso(match[6], sign),
+                m: parseIso(match[7], sign),
+                s: parseIso(match[8], sign),
+            };
+        } else if (duration == null) {
+            // checks for null or undefined
+            duration = {};
+        } else if (
+            typeof duration === 'object' &&
+            ('from' in duration || 'to' in duration)
+        ) {
+            diffRes = momentsDifference(
+                createLocal(duration.from),
+                createLocal(duration.to)
+            );
+
+            duration = {};
+            duration.ms = diffRes.milliseconds;
+            duration.M = diffRes.months;
+        }
+
+        ret = new Duration(duration);
+
+        if (isDuration(input) && hasOwnProp(input, '_locale')) {
+            ret._locale = input._locale;
+        }
+
+        if (isDuration(input) && hasOwnProp(input, '_isValid')) {
+            ret._isValid = input._isValid;
+        }
+
+        return ret;
+    }
+
+    createDuration.fn = Duration.prototype;
+    createDuration.invalid = createInvalid$1;
+
+    function parseIso(inp, sign) {
+        // We'd normally use ~~inp for this, but unfortunately it also
+        // converts floats to ints.
+        // inp may be undefined, so careful calling replace on it.
+        var res = inp && parseFloat(inp.replace(',', '.'));
+        // apply sign while we're at it
+        return (isNaN(res) ? 0 : res) * sign;
+    }
+
+    function positiveMomentsDifference(base, other) {
+        var res = {};
+
+        res.months =
+            other.month() - base.month() + (other.year() - base.year()) * 12;
+        if (base.clone().add(res.months, 'M').isAfter(other)) {
+            --res.months;
+        }
+
+        res.milliseconds = +other - +base.clone().add(res.months, 'M');
+
+        return res;
+    }
+
+    function momentsDifference(base, other) {
+        var res;
+        if (!(base.isValid() && other.isValid())) {
+            return { milliseconds: 0, months: 0 };
+        }
+
+        other = cloneWithOffset(other, base);
+        if (base.isBefore(other)) {
+            res = positiveMomentsDifference(base, other);
+        } else {
+            res = positiveMomentsDifference(other, base);
+            res.milliseconds = -res.milliseconds;
+            res.months = -res.months;
+        }
+
+        return res;
+    }
+
+    // TODO: remove 'name' arg after deprecation is removed
+    function createAdder(direction, name) {
+        return function (val, period) {
+            var dur, tmp;
+            //invert the arguments, but complain about it
+            if (period !== null && !isNaN(+period)) {
+                deprecateSimple(
+                    name,
+                    'moment().' +
+                        name +
+                        '(period, number) is deprecated. Please use moment().' +
+                        name +
+                        '(number, period). ' +
+                        'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.'
+                );
+                tmp = val;
+                val = period;
+                period = tmp;
+            }
+
+            dur = createDuration(val, period);
+            addSubtract(this, dur, direction);
+            return this;
+        };
+    }
+
+    function addSubtract(mom, duration, isAdding, updateOffset) {
+        var milliseconds = duration._milliseconds,
+            days = absRound(duration._days),
+            months = absRound(duration._months);
+
+        if (!mom.isValid()) {
+            // No op
+            return;
+        }
+
+        updateOffset = updateOffset == null ? true : updateOffset;
+
+        if (months) {
+            setMonth(mom, get(mom, 'Month') + months * isAdding);
+        }
+        if (days) {
+            set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
+        }
+        if (milliseconds) {
+            mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
+        }
+        if (updateOffset) {
+            hooks.updateOffset(mom, days || months);
+        }
+    }
+
+    var add = createAdder(1, 'add'),
+        subtract = createAdder(-1, 'subtract');
+
+    function isString(input) {
+        return typeof input === 'string' || input instanceof String;
+    }
+
+    // type MomentInput = Moment | Date | string | number | (number | string)[] | MomentInputObject | void; // null | undefined
+    function isMomentInput(input) {
+        return (
+            isMoment(input) ||
+            isDate(input) ||
+            isString(input) ||
+            isNumber(input) ||
+            isNumberOrStringArray(input) ||
+            isMomentInputObject(input) ||
+            input === null ||
+            input === undefined
+        );
+    }
+
+    function isMomentInputObject(input) {
+        var objectTest = isObject(input) && !isObjectEmpty(input),
+            propertyTest = false,
+            properties = [
+                'years',
+                'year',
+                'y',
+                'months',
+                'month',
+                'M',
+                'days',
+                'day',
+                'd',
+                'dates',
+                'date',
+                'D',
+                'hours',
+                'hour',
+                'h',
+                'minutes',
+                'minute',
+                'm',
+                'seconds',
+                'second',
+                's',
+                'milliseconds',
+                'millisecond',
+                'ms',
+            ],
+            i,
+            property;
+
+        for (i = 0; i < properties.length; i += 1) {
+            property = properties[i];
+            propertyTest = propertyTest || hasOwnProp(input, property);
+        }
+
+        return objectTest && propertyTest;
+    }
+
+    function isNumberOrStringArray(input) {
+        var arrayTest = isArray(input),
+            dataTypeTest = false;
+        if (arrayTest) {
+            dataTypeTest =
+                input.filter(function (item) {
+                    return !isNumber(item) && isString(input);
+                }).length === 0;
+        }
+        return arrayTest && dataTypeTest;
+    }
+
+    function isCalendarSpec(input) {
+        var objectTest = isObject(input) && !isObjectEmpty(input),
+            propertyTest = false,
+            properties = [
+                'sameDay',
+                'nextDay',
+                'lastDay',
+                'nextWeek',
+                'lastWeek',
+                'sameElse',
+            ],
+            i,
+            property;
+
+        for (i = 0; i < properties.length; i += 1) {
+            property = properties[i];
+            propertyTest = propertyTest || hasOwnProp(input, property);
+        }
+
+        return objectTest && propertyTest;
+    }
+
+    function getCalendarFormat(myMoment, now) {
+        var diff = myMoment.diff(now, 'days', true);
+        return diff < -6
+            ? 'sameElse'
+            : diff < -1
+            ? 'lastWeek'
+            : diff < 0
+            ? 'lastDay'
+            : diff < 1
+            ? 'sameDay'
+            : diff < 2
+            ? 'nextDay'
+            : diff < 7
+            ? 'nextWeek'
+            : 'sameElse';
+    }
+
+    function calendar$1(time, formats) {
+        // Support for single parameter, formats only overload to the calendar function
+        if (arguments.length === 1) {
+            if (!arguments[0]) {
+                time = undefined;
+                formats = undefined;
+            } else if (isMomentInput(arguments[0])) {
+                time = arguments[0];
+                formats = undefined;
+            } else if (isCalendarSpec(arguments[0])) {
+                formats = arguments[0];
+                time = undefined;
+            }
+        }
+        // We want to compare the start of today, vs this.
+        // Getting start-of-today depends on whether we're local/utc/offset or not.
+        var now = time || createLocal(),
+            sod = cloneWithOffset(now, this).startOf('day'),
+            format = hooks.calendarFormat(this, sod) || 'sameElse',
+            output =
+                formats &&
+                (isFunction(formats[format])
+                    ? formats[format].call(this, now)
+                    : formats[format]);
+
+        return this.format(
+            output || this.localeData().calendar(format, this, createLocal(now))
+        );
+    }
+
+    function clone() {
+        return new Moment(this);
+    }
+
+    function isAfter(input, units) {
+        var localInput = isMoment(input) ? input : createLocal(input);
+        if (!(this.isValid() && localInput.isValid())) {
+            return false;
+        }
+        units = normalizeUnits(units) || 'millisecond';
+        if (units === 'millisecond') {
+            return this.valueOf() > localInput.valueOf();
+        } else {
+            return localInput.valueOf() < this.clone().startOf(units).valueOf();
+        }
+    }
+
+    function isBefore(input, units) {
+        var localInput = isMoment(input) ? input : createLocal(input);
+        if (!(this.isValid() && localInput.isValid())) {
+            return false;
+        }
+        units = normalizeUnits(units) || 'millisecond';
+        if (units === 'millisecond') {
+            return this.valueOf() < localInput.valueOf();
+        } else {
+            return this.clone().endOf(units).valueOf() < localInput.valueOf();
+        }
+    }
+
+    function isBetween(from, to, units, inclusivity) {
+        var localFrom = isMoment(from) ? from : createLocal(from),
+            localTo = isMoment(to) ? to : createLocal(to);
+        if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {
+            return false;
+        }
+        inclusivity = inclusivity || '()';
+        return (
+            (inclusivity[0] === '('
+                ? this.isAfter(localFrom, units)
+                : !this.isBefore(localFrom, units)) &&
+            (inclusivity[1] === ')'
+                ? this.isBefore(localTo, units)
+                : !this.isAfter(localTo, units))
+        );
+    }
+
+    function isSame(input, units) {
+        var localInput = isMoment(input) ? input : createLocal(input),
+            inputMs;
+        if (!(this.isValid() && localInput.isValid())) {
+            return false;
+        }
+        units = normalizeUnits(units) || 'millisecond';
+        if (units === 'millisecond') {
+            return this.valueOf() === localInput.valueOf();
+        } else {
+            inputMs = localInput.valueOf();
+            return (
+                this.clone().startOf(units).valueOf() <= inputMs &&
+                inputMs <= this.clone().endOf(units).valueOf()
+            );
+        }
+    }
+
+    function isSameOrAfter(input, units) {
+        return this.isSame(input, units) || this.isAfter(input, units);
+    }
+
+    function isSameOrBefore(input, units) {
+        return this.isSame(input, units) || this.isBefore(input, units);
+    }
+
+    function diff(input, units, asFloat) {
+        var that, zoneDelta, output;
+
+        if (!this.isValid()) {
+            return NaN;
+        }
+
+        that = cloneWithOffset(input, this);
+
+        if (!that.isValid()) {
+            return NaN;
+        }
+
+        zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;
+
+        units = normalizeUnits(units);
+
+        switch (units) {
+            case 'year':
+                output = monthDiff(this, that) / 12;
+                break;
+            case 'month':
+                output = monthDiff(this, that);
+                break;
+            case 'quarter':
+                output = monthDiff(this, that) / 3;
+                break;
+            case 'second':
+                output = (this - that) / 1e3;
+                break; // 1000
+            case 'minute':
+                output = (this - that) / 6e4;
+                break; // 1000 * 60
+            case 'hour':
+                output = (this - that) / 36e5;
+                break; // 1000 * 60 * 60
+            case 'day':
+                output = (this - that - zoneDelta) / 864e5;
+                break; // 1000 * 60 * 60 * 24, negate dst
+            case 'week':
+                output = (this - that - zoneDelta) / 6048e5;
+                break; // 1000 * 60 * 60 * 24 * 7, negate dst
+            default:
+                output = this - that;
+        }
+
+        return asFloat ? output : absFloor(output);
+    }
+
+    function monthDiff(a, b) {
+        if (a.date() < b.date()) {
+            // end-of-month calculations work correct when the start month has more
+            // days than the end month.
+            return -monthDiff(b, a);
+        }
+        // difference in months
+        var wholeMonthDiff = (b.year() - a.year()) * 12 + (b.month() - a.month()),
+            // b is in (anchor - 1 month, anchor + 1 month)
+            anchor = a.clone().add(wholeMonthDiff, 'months'),
+            anchor2,
+            adjust;
+
+        if (b - anchor < 0) {
+            anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
+            // linear across the month
+            adjust = (b - anchor) / (anchor - anchor2);
+        } else {
+            anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
+            // linear across the month
+            adjust = (b - anchor) / (anchor2 - anchor);
+        }
+
+        //check for negative zero, return zero if negative zero
+        return -(wholeMonthDiff + adjust) || 0;
+    }
+
+    hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
+    hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';
+
+    function toString() {
+        return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
+    }
+
+    function toISOString(keepOffset) {
+        if (!this.isValid()) {
+            return null;
+        }
+        var utc = keepOffset !== true,
+            m = utc ? this.clone().utc() : this;
+        if (m.year() < 0 || m.year() > 9999) {
+            return formatMoment(
+                m,
+                utc
+                    ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]'
+                    : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ'
+            );
+        }
+        if (isFunction(Date.prototype.toISOString)) {
+            // native implementation is ~50x faster, use it when we can
+            if (utc) {
+                return this.toDate().toISOString();
+            } else {
+                return new Date(this.valueOf() + this.utcOffset() * 60 * 1000)
+                    .toISOString()
+                    .replace('Z', formatMoment(m, 'Z'));
+            }
+        }
+        return formatMoment(
+            m,
+            utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ'
+        );
+    }
+
+    /**
+     * Return a human readable representation of a moment that can
+     * also be evaluated to get a new moment which is the same
+     *
+     * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
+     */
+    function inspect() {
+        if (!this.isValid()) {
+            return 'moment.invalid(/* ' + this._i + ' */)';
+        }
+        var func = 'moment',
+            zone = '',
+            prefix,
+            year,
+            datetime,
+            suffix;
+        if (!this.isLocal()) {
+            func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
+            zone = 'Z';
+        }
+        prefix = '[' + func + '("]';
+        year = 0 <= this.year() && this.year() <= 9999 ? 'YYYY' : 'YYYYYY';
+        datetime = '-MM-DD[T]HH:mm:ss.SSS';
+        suffix = zone + '[")]';
+
+        return this.format(prefix + year + datetime + suffix);
+    }
+
+    function format(inputString) {
+        if (!inputString) {
+            inputString = this.isUtc()
+                ? hooks.defaultFormatUtc
+                : hooks.defaultFormat;
+        }
+        var output = formatMoment(this, inputString);
+        return this.localeData().postformat(output);
+    }
+
+    function from(time, withoutSuffix) {
+        if (
+            this.isValid() &&
+            ((isMoment(time) && time.isValid()) || createLocal(time).isValid())
+        ) {
+            return createDuration({ to: this, from: time })
+                .locale(this.locale())
+                .humanize(!withoutSuffix);
+        } else {
+            return this.localeData().invalidDate();
+        }
+    }
+
+    function fromNow(withoutSuffix) {
+        return this.from(createLocal(), withoutSuffix);
+    }
+
+    function to(time, withoutSuffix) {
+        if (
+            this.isValid() &&
+            ((isMoment(time) && time.isValid()) || createLocal(time).isValid())
+        ) {
+            return createDuration({ from: this, to: time })
+                .locale(this.locale())
+                .humanize(!withoutSuffix);
+        } else {
+            return this.localeData().invalidDate();
+        }
+    }
+
+    function toNow(withoutSuffix) {
+        return this.to(createLocal(), withoutSuffix);
+    }
+
+    // If passed a locale key, it will set the locale for this
+    // instance.  Otherwise, it will return the locale configuration
+    // variables for this instance.
+    function locale(key) {
+        var newLocaleData;
+
+        if (key === undefined) {
+            return this._locale._abbr;
+        } else {
+            newLocaleData = getLocale(key);
+            if (newLocaleData != null) {
+                this._locale = newLocaleData;
+            }
+            return this;
+        }
+    }
+
+    var lang = deprecate(
+        'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
+        function (key) {
+            if (key === undefined) {
+                return this.localeData();
+            } else {
+                return this.locale(key);
+            }
+        }
+    );
+
+    function localeData() {
+        return this._locale;
+    }
+
+    var MS_PER_SECOND = 1000,
+        MS_PER_MINUTE = 60 * MS_PER_SECOND,
+        MS_PER_HOUR = 60 * MS_PER_MINUTE,
+        MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;
+
+    // actual modulo - handles negative numbers (for dates before 1970):
+    function mod$1(dividend, divisor) {
+        return ((dividend % divisor) + divisor) % divisor;
+    }
+
+    function localStartOfDate(y, m, d) {
+        // the date constructor remaps years 0-99 to 1900-1999
+        if (y < 100 && y >= 0) {
+            // preserve leap years using a full 400 year cycle, then reset
+            return new Date(y + 400, m, d) - MS_PER_400_YEARS;
+        } else {
+            return new Date(y, m, d).valueOf();
+        }
+    }
+
+    function utcStartOfDate(y, m, d) {
+        // Date.UTC remaps years 0-99 to 1900-1999
+        if (y < 100 && y >= 0) {
+            // preserve leap years using a full 400 year cycle, then reset
+            return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;
+        } else {
+            return Date.UTC(y, m, d);
+        }
+    }
+
+    function startOf(units) {
+        var time, startOfDate;
+        units = normalizeUnits(units);
+        if (units === undefined || units === 'millisecond' || !this.isValid()) {
+            return this;
+        }
+
+        startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
+
+        switch (units) {
+            case 'year':
+                time = startOfDate(this.year(), 0, 1);
+                break;
+            case 'quarter':
+                time = startOfDate(
+                    this.year(),
+                    this.month() - (this.month() % 3),
+                    1
+                );
+                break;
+            case 'month':
+                time = startOfDate(this.year(), this.month(), 1);
+                break;
+            case 'week':
+                time = startOfDate(
+                    this.year(),
+                    this.month(),
+                    this.date() - this.weekday()
+                );
+                break;
+            case 'isoWeek':
+                time = startOfDate(
+                    this.year(),
+                    this.month(),
+                    this.date() - (this.isoWeekday() - 1)
+                );
+                break;
+            case 'day':
+            case 'date':
+                time = startOfDate(this.year(), this.month(), this.date());
+                break;
+            case 'hour':
+                time = this._d.valueOf();
+                time -= mod$1(
+                    time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),
+                    MS_PER_HOUR
+                );
+                break;
+            case 'minute':
+                time = this._d.valueOf();
+                time -= mod$1(time, MS_PER_MINUTE);
+                break;
+            case 'second':
+                time = this._d.valueOf();
+                time -= mod$1(time, MS_PER_SECOND);
+                break;
+        }
+
+        this._d.setTime(time);
+        hooks.updateOffset(this, true);
+        return this;
+    }
+
+    function endOf(units) {
+        var time, startOfDate;
+        units = normalizeUnits(units);
+        if (units === undefined || units === 'millisecond' || !this.isValid()) {
+            return this;
+        }
+
+        startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
+
+        switch (units) {
+            case 'year':
+                time = startOfDate(this.year() + 1, 0, 1) - 1;
+                break;
+            case 'quarter':
+                time =
+                    startOfDate(
+                        this.year(),
+                        this.month() - (this.month() % 3) + 3,
+                        1
+                    ) - 1;
+                break;
+            case 'month':
+                time = startOfDate(this.year(), this.month() + 1, 1) - 1;
+                break;
+            case 'week':
+                time =
+                    startOfDate(
+                        this.year(),
+                        this.month(),
+                        this.date() - this.weekday() + 7
+                    ) - 1;
+                break;
+            case 'isoWeek':
+                time =
+                    startOfDate(
+                        this.year(),
+                        this.month(),
+                        this.date() - (this.isoWeekday() - 1) + 7
+                    ) - 1;
+                break;
+            case 'day':
+            case 'date':
+                time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;
+                break;
+            case 'hour':
+                time = this._d.valueOf();
+                time +=
+                    MS_PER_HOUR -
+                    mod$1(
+                        time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),
+                        MS_PER_HOUR
+                    ) -
+                    1;
+                break;
+            case 'minute':
+                time = this._d.valueOf();
+                time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1;
+                break;
+            case 'second':
+                time = this._d.valueOf();
+                time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1;
+                break;
+        }
+
+        this._d.setTime(time);
+        hooks.updateOffset(this, true);
+        return this;
+    }
+
+    function valueOf() {
+        return this._d.valueOf() - (this._offset || 0) * 60000;
+    }
+
+    function unix() {
+        return Math.floor(this.valueOf() / 1000);
+    }
+
+    function toDate() {
+        return new Date(this.valueOf());
+    }
+
+    function toArray() {
+        var m = this;
+        return [
+            m.year(),
+            m.month(),
+            m.date(),
+            m.hour(),
+            m.minute(),
+            m.second(),
+            m.millisecond(),
+        ];
+    }
+
+    function toObject() {
+        var m = this;
+        return {
+            years: m.year(),
+            months: m.month(),
+            date: m.date(),
+            hours: m.hours(),
+            minutes: m.minutes(),
+            seconds: m.seconds(),
+            milliseconds: m.milliseconds(),
+        };
+    }
+
+    function toJSON() {
+        // new Date(NaN).toJSON() === null
+        return this.isValid() ? this.toISOString() : null;
+    }
+
+    function isValid$2() {
+        return isValid(this);
+    }
+
+    function parsingFlags() {
+        return extend({}, getParsingFlags(this));
+    }
+
+    function invalidAt() {
+        return getParsingFlags(this).overflow;
+    }
+
+    function creationData() {
+        return {
+            input: this._i,
+            format: this._f,
+            locale: this._locale,
+            isUTC: this._isUTC,
+            strict: this._strict,
+        };
+    }
+
+    addFormatToken('N', 0, 0, 'eraAbbr');
+    addFormatToken('NN', 0, 0, 'eraAbbr');
+    addFormatToken('NNN', 0, 0, 'eraAbbr');
+    addFormatToken('NNNN', 0, 0, 'eraName');
+    addFormatToken('NNNNN', 0, 0, 'eraNarrow');
+
+    addFormatToken('y', ['y', 1], 'yo', 'eraYear');
+    addFormatToken('y', ['yy', 2], 0, 'eraYear');
+    addFormatToken('y', ['yyy', 3], 0, 'eraYear');
+    addFormatToken('y', ['yyyy', 4], 0, 'eraYear');
+
+    addRegexToken('N', matchEraAbbr);
+    addRegexToken('NN', matchEraAbbr);
+    addRegexToken('NNN', matchEraAbbr);
+    addRegexToken('NNNN', matchEraName);
+    addRegexToken('NNNNN', matchEraNarrow);
+
+    addParseToken(['N', 'NN', 'NNN', 'NNNN', 'NNNNN'], function (
+        input,
+        array,
+        config,
+        token
+    ) {
+        var era = config._locale.erasParse(input, token, config._strict);
+        if (era) {
+            getParsingFlags(config).era = era;
+        } else {
+            getParsingFlags(config).invalidEra = input;
+        }
+    });
+
+    addRegexToken('y', matchUnsigned);
+    addRegexToken('yy', matchUnsigned);
+    addRegexToken('yyy', matchUnsigned);
+    addRegexToken('yyyy', matchUnsigned);
+    addRegexToken('yo', matchEraYearOrdinal);
+
+    addParseToken(['y', 'yy', 'yyy', 'yyyy'], YEAR);
+    addParseToken(['yo'], function (input, array, config, token) {
+        var match;
+        if (config._locale._eraYearOrdinalRegex) {
+            match = input.match(config._locale._eraYearOrdinalRegex);
+        }
+
+        if (config._locale.eraYearOrdinalParse) {
+            array[YEAR] = config._locale.eraYearOrdinalParse(input, match);
+        } else {
+            array[YEAR] = parseInt(input, 10);
+        }
+    });
+
+    function localeEras(m, format) {
+        var i,
+            l,
+            date,
+            eras = this._eras || getLocale('en')._eras;
+        for (i = 0, l = eras.length; i < l; ++i) {
+            switch (typeof eras[i].since) {
+                case 'string':
+                    // truncate time
+                    date = hooks(eras[i].since).startOf('day');
+                    eras[i].since = date.valueOf();
+                    break;
+            }
+
+            switch (typeof eras[i].until) {
+                case 'undefined':
+                    eras[i].until = +Infinity;
+                    break;
+                case 'string':
+                    // truncate time
+                    date = hooks(eras[i].until).startOf('day').valueOf();
+                    eras[i].until = date.valueOf();
+                    break;
+            }
+        }
+        return eras;
+    }
+
+    function localeErasParse(eraName, format, strict) {
+        var i,
+            l,
+            eras = this.eras(),
+            name,
+            abbr,
+            narrow;
+        eraName = eraName.toUpperCase();
+
+        for (i = 0, l = eras.length; i < l; ++i) {
+            name = eras[i].name.toUpperCase();
+            abbr = eras[i].abbr.toUpperCase();
+            narrow = eras[i].narrow.toUpperCase();
+
+            if (strict) {
+                switch (format) {
+                    case 'N':
+                    case 'NN':
+                    case 'NNN':
+                        if (abbr === eraName) {
+                            return eras[i];
+                        }
+                        break;
+
+                    case 'NNNN':
+                        if (name === eraName) {
+                            return eras[i];
+                        }
+                        break;
+
+                    case 'NNNNN':
+                        if (narrow === eraName) {
+                            return eras[i];
+                        }
+                        break;
+                }
+            } else if ([name, abbr, narrow].indexOf(eraName) >= 0) {
+                return eras[i];
+            }
+        }
+    }
+
+    function localeErasConvertYear(era, year) {
+        var dir = era.since <= era.until ? +1 : -1;
+        if (year === undefined) {
+            return hooks(era.since).year();
+        } else {
+            return hooks(era.since).year() + (year - era.offset) * dir;
+        }
+    }
+
+    function getEraName() {
+        var i,
+            l,
+            val,
+            eras = this.localeData().eras();
+        for (i = 0, l = eras.length; i < l; ++i) {
+            // truncate time
+            val = this.clone().startOf('day').valueOf();
+
+            if (eras[i].since <= val && val <= eras[i].until) {
+                return eras[i].name;
+            }
+            if (eras[i].until <= val && val <= eras[i].since) {
+                return eras[i].name;
+            }
+        }
+
+        return '';
+    }
+
+    function getEraNarrow() {
+        var i,
+            l,
+            val,
+            eras = this.localeData().eras();
+        for (i = 0, l = eras.length; i < l; ++i) {
+            // truncate time
+            val = this.clone().startOf('day').valueOf();
+
+            if (eras[i].since <= val && val <= eras[i].until) {
+                return eras[i].narrow;
+            }
+            if (eras[i].until <= val && val <= eras[i].since) {
+                return eras[i].narrow;
+            }
+        }
+
+        return '';
+    }
+
+    function getEraAbbr() {
+        var i,
+            l,
+            val,
+            eras = this.localeData().eras();
+        for (i = 0, l = eras.length; i < l; ++i) {
+            // truncate time
+            val = this.clone().startOf('day').valueOf();
+
+            if (eras[i].since <= val && val <= eras[i].until) {
+                return eras[i].abbr;
+            }
+            if (eras[i].until <= val && val <= eras[i].since) {
+                return eras[i].abbr;
+            }
+        }
+
+        return '';
+    }
+
+    function getEraYear() {
+        var i,
+            l,
+            dir,
+            val,
+            eras = this.localeData().eras();
+        for (i = 0, l = eras.length; i < l; ++i) {
+            dir = eras[i].since <= eras[i].until ? +1 : -1;
+
+            // truncate time
+            val = this.clone().startOf('day').valueOf();
+
+            if (
+                (eras[i].since <= val && val <= eras[i].until) ||
+                (eras[i].until <= val && val <= eras[i].since)
+            ) {
+                return (
+                    (this.year() - hooks(eras[i].since).year()) * dir +
+                    eras[i].offset
+                );
+            }
+        }
+
+        return this.year();
+    }
+
+    function erasNameRegex(isStrict) {
+        if (!hasOwnProp(this, '_erasNameRegex')) {
+            computeErasParse.call(this);
+        }
+        return isStrict ? this._erasNameRegex : this._erasRegex;
+    }
+
+    function erasAbbrRegex(isStrict) {
+        if (!hasOwnProp(this, '_erasAbbrRegex')) {
+            computeErasParse.call(this);
+        }
+        return isStrict ? this._erasAbbrRegex : this._erasRegex;
+    }
+
+    function erasNarrowRegex(isStrict) {
+        if (!hasOwnProp(this, '_erasNarrowRegex')) {
+            computeErasParse.call(this);
+        }
+        return isStrict ? this._erasNarrowRegex : this._erasRegex;
+    }
+
+    function matchEraAbbr(isStrict, locale) {
+        return locale.erasAbbrRegex(isStrict);
+    }
+
+    function matchEraName(isStrict, locale) {
+        return locale.erasNameRegex(isStrict);
+    }
+
+    function matchEraNarrow(isStrict, locale) {
+        return locale.erasNarrowRegex(isStrict);
+    }
+
+    function matchEraYearOrdinal(isStrict, locale) {
+        return locale._eraYearOrdinalRegex || matchUnsigned;
+    }
+
+    function computeErasParse() {
+        var abbrPieces = [],
+            namePieces = [],
+            narrowPieces = [],
+            mixedPieces = [],
+            i,
+            l,
+            eras = this.eras();
+
+        for (i = 0, l = eras.length; i < l; ++i) {
+            namePieces.push(regexEscape(eras[i].name));
+            abbrPieces.push(regexEscape(eras[i].abbr));
+            narrowPieces.push(regexEscape(eras[i].narrow));
+
+            mixedPieces.push(regexEscape(eras[i].name));
+            mixedPieces.push(regexEscape(eras[i].abbr));
+            mixedPieces.push(regexEscape(eras[i].narrow));
+        }
+
+        this._erasRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
+        this._erasNameRegex = new RegExp('^(' + namePieces.join('|') + ')', 'i');
+        this._erasAbbrRegex = new RegExp('^(' + abbrPieces.join('|') + ')', 'i');
+        this._erasNarrowRegex = new RegExp(
+            '^(' + narrowPieces.join('|') + ')',
+            'i'
+        );
+    }
+
+    // FORMATTING
+
+    addFormatToken(0, ['gg', 2], 0, function () {
+        return this.weekYear() % 100;
+    });
+
+    addFormatToken(0, ['GG', 2], 0, function () {
+        return this.isoWeekYear() % 100;
+    });
+
+    function addWeekYearFormatToken(token, getter) {
+        addFormatToken(0, [token, token.length], 0, getter);
+    }
+
+    addWeekYearFormatToken('gggg', 'weekYear');
+    addWeekYearFormatToken('ggggg', 'weekYear');
+    addWeekYearFormatToken('GGGG', 'isoWeekYear');
+    addWeekYearFormatToken('GGGGG', 'isoWeekYear');
+
+    // ALIASES
+
+    addUnitAlias('weekYear', 'gg');
+    addUnitAlias('isoWeekYear', 'GG');
+
+    // PRIORITY
+
+    addUnitPriority('weekYear', 1);
+    addUnitPriority('isoWeekYear', 1);
+
+    // PARSING
+
+    addRegexToken('G', matchSigned);
+    addRegexToken('g', matchSigned);
+    addRegexToken('GG', match1to2, match2);
+    addRegexToken('gg', match1to2, match2);
+    addRegexToken('GGGG', match1to4, match4);
+    addRegexToken('gggg', match1to4, match4);
+    addRegexToken('GGGGG', match1to6, match6);
+    addRegexToken('ggggg', match1to6, match6);
+
+    addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (
+        input,
+        week,
+        config,
+        token
+    ) {
+        week[token.substr(0, 2)] = toInt(input);
+    });
+
+    addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
+        week[token] = hooks.parseTwoDigitYear(input);
+    });
+
+    // MOMENTS
+
+    function getSetWeekYear(input) {
+        return getSetWeekYearHelper.call(
+            this,
+            input,
+            this.week(),
+            this.weekday(),
+            this.localeData()._week.dow,
+            this.localeData()._week.doy
+        );
+    }
+
+    function getSetISOWeekYear(input) {
+        return getSetWeekYearHelper.call(
+            this,
+            input,
+            this.isoWeek(),
+            this.isoWeekday(),
+            1,
+            4
+        );
+    }
+
+    function getISOWeeksInYear() {
+        return weeksInYear(this.year(), 1, 4);
+    }
+
+    function getISOWeeksInISOWeekYear() {
+        return weeksInYear(this.isoWeekYear(), 1, 4);
+    }
+
+    function getWeeksInYear() {
+        var weekInfo = this.localeData()._week;
+        return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
+    }
+
+    function getWeeksInWeekYear() {
+        var weekInfo = this.localeData()._week;
+        return weeksInYear(this.weekYear(), weekInfo.dow, weekInfo.doy);
+    }
+
+    function getSetWeekYearHelper(input, week, weekday, dow, doy) {
+        var weeksTarget;
+        if (input == null) {
+            return weekOfYear(this, dow, doy).year;
+        } else {
+            weeksTarget = weeksInYear(input, dow, doy);
+            if (week > weeksTarget) {
+                week = weeksTarget;
+            }
+            return setWeekAll.call(this, input, week, weekday, dow, doy);
+        }
+    }
+
+    function setWeekAll(weekYear, week, weekday, dow, doy) {
+        var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
+            date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);
+
+        this.year(date.getUTCFullYear());
+        this.month(date.getUTCMonth());
+        this.date(date.getUTCDate());
+        return this;
+    }
+
+    // FORMATTING
+
+    addFormatToken('Q', 0, 'Qo', 'quarter');
+
+    // ALIASES
+
+    addUnitAlias('quarter', 'Q');
+
+    // PRIORITY
+
+    addUnitPriority('quarter', 7);
+
+    // PARSING
+
+    addRegexToken('Q', match1);
+    addParseToken('Q', function (input, array) {
+        array[MONTH] = (toInt(input) - 1) * 3;
+    });
+
+    // MOMENTS
+
+    function getSetQuarter(input) {
+        return input == null
+            ? Math.ceil((this.month() + 1) / 3)
+            : this.month((input - 1) * 3 + (this.month() % 3));
+    }
+
+    // FORMATTING
+
+    addFormatToken('D', ['DD', 2], 'Do', 'date');
+
+    // ALIASES
+
+    addUnitAlias('date', 'D');
+
+    // PRIORITY
+    addUnitPriority('date', 9);
+
+    // PARSING
+
+    addRegexToken('D', match1to2);
+    addRegexToken('DD', match1to2, match2);
+    addRegexToken('Do', function (isStrict, locale) {
+        // TODO: Remove "ordinalParse" fallback in next major release.
+        return isStrict
+            ? locale._dayOfMonthOrdinalParse || locale._ordinalParse
+            : locale._dayOfMonthOrdinalParseLenient;
+    });
+
+    addParseToken(['D', 'DD'], DATE);
+    addParseToken('Do', function (input, array) {
+        array[DATE] = toInt(input.match(match1to2)[0]);
+    });
+
+    // MOMENTS
+
+    var getSetDayOfMonth = makeGetSet('Date', true);
+
+    // FORMATTING
+
+    addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');
+
+    // ALIASES
+
+    addUnitAlias('dayOfYear', 'DDD');
+
+    // PRIORITY
+    addUnitPriority('dayOfYear', 4);
+
+    // PARSING
+
+    addRegexToken('DDD', match1to3);
+    addRegexToken('DDDD', match3);
+    addParseToken(['DDD', 'DDDD'], function (input, array, config) {
+        config._dayOfYear = toInt(input);
+    });
+
+    // HELPERS
+
+    // MOMENTS
+
+    function getSetDayOfYear(input) {
+        var dayOfYear =
+            Math.round(
+                (this.clone().startOf('day') - this.clone().startOf('year')) / 864e5
+            ) + 1;
+        return input == null ? dayOfYear : this.add(input - dayOfYear, 'd');
+    }
+
+    // FORMATTING
+
+    addFormatToken('m', ['mm', 2], 0, 'minute');
+
+    // ALIASES
+
+    addUnitAlias('minute', 'm');
+
+    // PRIORITY
+
+    addUnitPriority('minute', 14);
+
+    // PARSING
+
+    addRegexToken('m', match1to2);
+    addRegexToken('mm', match1to2, match2);
+    addParseToken(['m', 'mm'], MINUTE);
+
+    // MOMENTS
+
+    var getSetMinute = makeGetSet('Minutes', false);
+
+    // FORMATTING
+
+    addFormatToken('s', ['ss', 2], 0, 'second');
+
+    // ALIASES
+
+    addUnitAlias('second', 's');
+
+    // PRIORITY
+
+    addUnitPriority('second', 15);
+
+    // PARSING
+
+    addRegexToken('s', match1to2);
+    addRegexToken('ss', match1to2, match2);
+    addParseToken(['s', 'ss'], SECOND);
+
+    // MOMENTS
+
+    var getSetSecond = makeGetSet('Seconds', false);
+
+    // FORMATTING
+
+    addFormatToken('S', 0, 0, function () {
+        return ~~(this.millisecond() / 100);
+    });
+
+    addFormatToken(0, ['SS', 2], 0, function () {
+        return ~~(this.millisecond() / 10);
+    });
+
+    addFormatToken(0, ['SSS', 3], 0, 'millisecond');
+    addFormatToken(0, ['SSSS', 4], 0, function () {
+        return this.millisecond() * 10;
+    });
+    addFormatToken(0, ['SSSSS', 5], 0, function () {
+        return this.millisecond() * 100;
+    });
+    addFormatToken(0, ['SSSSSS', 6], 0, function () {
+        return this.millisecond() * 1000;
+    });
+    addFormatToken(0, ['SSSSSSS', 7], 0, function () {
+        return this.millisecond() * 10000;
+    });
+    addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
+        return this.millisecond() * 100000;
+    });
+    addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
+        return this.millisecond() * 1000000;
+    });
+
+    // ALIASES
+
+    addUnitAlias('millisecond', 'ms');
+
+    // PRIORITY
+
+    addUnitPriority('millisecond', 16);
+
+    // PARSING
+
+    addRegexToken('S', match1to3, match1);
+    addRegexToken('SS', match1to3, match2);
+    addRegexToken('SSS', match1to3, match3);
+
+    var token, getSetMillisecond;
+    for (token = 'SSSS'; token.length <= 9; token += 'S') {
+        addRegexToken(token, matchUnsigned);
+    }
+
+    function parseMs(input, array) {
+        array[MILLISECOND] = toInt(('0.' + input) * 1000);
+    }
+
+    for (token = 'S'; token.length <= 9; token += 'S') {
+        addParseToken(token, parseMs);
+    }
+
+    getSetMillisecond = makeGetSet('Milliseconds', false);
+
+    // FORMATTING
+
+    addFormatToken('z', 0, 0, 'zoneAbbr');
+    addFormatToken('zz', 0, 0, 'zoneName');
+
+    // MOMENTS
+
+    function getZoneAbbr() {
+        return this._isUTC ? 'UTC' : '';
+    }
+
+    function getZoneName() {
+        return this._isUTC ? 'Coordinated Universal Time' : '';
+    }
+
+    var proto = Moment.prototype;
+
+    proto.add = add;
+    proto.calendar = calendar$1;
+    proto.clone = clone;
+    proto.diff = diff;
+    proto.endOf = endOf;
+    proto.format = format;
+    proto.from = from;
+    proto.fromNow = fromNow;
+    proto.to = to;
+    proto.toNow = toNow;
+    proto.get = stringGet;
+    proto.invalidAt = invalidAt;
+    proto.isAfter = isAfter;
+    proto.isBefore = isBefore;
+    proto.isBetween = isBetween;
+    proto.isSame = isSame;
+    proto.isSameOrAfter = isSameOrAfter;
+    proto.isSameOrBefore = isSameOrBefore;
+    proto.isValid = isValid$2;
+    proto.lang = lang;
+    proto.locale = locale;
+    proto.localeData = localeData;
+    proto.max = prototypeMax;
+    proto.min = prototypeMin;
+    proto.parsingFlags = parsingFlags;
+    proto.set = stringSet;
+    proto.startOf = startOf;
+    proto.subtract = subtract;
+    proto.toArray = toArray;
+    proto.toObject = toObject;
+    proto.toDate = toDate;
+    proto.toISOString = toISOString;
+    proto.inspect = inspect;
+    if (typeof Symbol !== 'undefined' && Symbol.for != null) {
+        proto[Symbol.for('nodejs.util.inspect.custom')] = function () {
+            return 'Moment<' + this.format() + '>';
+        };
+    }
+    proto.toJSON = toJSON;
+    proto.toString = toString;
+    proto.unix = unix;
+    proto.valueOf = valueOf;
+    proto.creationData = creationData;
+    proto.eraName = getEraName;
+    proto.eraNarrow = getEraNarrow;
+    proto.eraAbbr = getEraAbbr;
+    proto.eraYear = getEraYear;
+    proto.year = getSetYear;
+    proto.isLeapYear = getIsLeapYear;
+    proto.weekYear = getSetWeekYear;
+    proto.isoWeekYear = getSetISOWeekYear;
+    proto.quarter = proto.quarters = getSetQuarter;
+    proto.month = getSetMonth;
+    proto.daysInMonth = getDaysInMonth;
+    proto.week = proto.weeks = getSetWeek;
+    proto.isoWeek = proto.isoWeeks = getSetISOWeek;
+    proto.weeksInYear = getWeeksInYear;
+    proto.weeksInWeekYear = getWeeksInWeekYear;
+    proto.isoWeeksInYear = getISOWeeksInYear;
+    proto.isoWeeksInISOWeekYear = getISOWeeksInISOWeekYear;
+    proto.date = getSetDayOfMonth;
+    proto.day = proto.days = getSetDayOfWeek;
+    proto.weekday = getSetLocaleDayOfWeek;
+    proto.isoWeekday = getSetISODayOfWeek;
+    proto.dayOfYear = getSetDayOfYear;
+    proto.hour = proto.hours = getSetHour;
+    proto.minute = proto.minutes = getSetMinute;
+    proto.second = proto.seconds = getSetSecond;
+    proto.millisecond = proto.milliseconds = getSetMillisecond;
+    proto.utcOffset = getSetOffset;
+    proto.utc = setOffsetToUTC;
+    proto.local = setOffsetToLocal;
+    proto.parseZone = setOffsetToParsedOffset;
+    proto.hasAlignedHourOffset = hasAlignedHourOffset;
+    proto.isDST = isDaylightSavingTime;
+    proto.isLocal = isLocal;
+    proto.isUtcOffset = isUtcOffset;
+    proto.isUtc = isUtc;
+    proto.isUTC = isUtc;
+    proto.zoneAbbr = getZoneAbbr;
+    proto.zoneName = getZoneName;
+    proto.dates = deprecate(
+        'dates accessor is deprecated. Use date instead.',
+        getSetDayOfMonth
+    );
+    proto.months = deprecate(
+        'months accessor is deprecated. Use month instead',
+        getSetMonth
+    );
+    proto.years = deprecate(
+        'years accessor is deprecated. Use year instead',
+        getSetYear
+    );
+    proto.zone = deprecate(
+        'moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/',
+        getSetZone
+    );
+    proto.isDSTShifted = deprecate(
+        'isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information',
+        isDaylightSavingTimeShifted
+    );
+
+    function createUnix(input) {
+        return createLocal(input * 1000);
+    }
+
+    function createInZone() {
+        return createLocal.apply(null, arguments).parseZone();
+    }
+
+    function preParsePostFormat(string) {
+        return string;
+    }
+
+    var proto$1 = Locale.prototype;
+
+    proto$1.calendar = calendar;
+    proto$1.longDateFormat = longDateFormat;
+    proto$1.invalidDate = invalidDate;
+    proto$1.ordinal = ordinal;
+    proto$1.preparse = preParsePostFormat;
+    proto$1.postformat = preParsePostFormat;
+    proto$1.relativeTime = relativeTime;
+    proto$1.pastFuture = pastFuture;
+    proto$1.set = set;
+    proto$1.eras = localeEras;
+    proto$1.erasParse = localeErasParse;
+    proto$1.erasConvertYear = localeErasConvertYear;
+    proto$1.erasAbbrRegex = erasAbbrRegex;
+    proto$1.erasNameRegex = erasNameRegex;
+    proto$1.erasNarrowRegex = erasNarrowRegex;
+
+    proto$1.months = localeMonths;
+    proto$1.monthsShort = localeMonthsShort;
+    proto$1.monthsParse = localeMonthsParse;
+    proto$1.monthsRegex = monthsRegex;
+    proto$1.monthsShortRegex = monthsShortRegex;
+    proto$1.week = localeWeek;
+    proto$1.firstDayOfYear = localeFirstDayOfYear;
+    proto$1.firstDayOfWeek = localeFirstDayOfWeek;
+
+    proto$1.weekdays = localeWeekdays;
+    proto$1.weekdaysMin = localeWeekdaysMin;
+    proto$1.weekdaysShort = localeWeekdaysShort;
+    proto$1.weekdaysParse = localeWeekdaysParse;
+
+    proto$1.weekdaysRegex = weekdaysRegex;
+    proto$1.weekdaysShortRegex = weekdaysShortRegex;
+    proto$1.weekdaysMinRegex = weekdaysMinRegex;
+
+    proto$1.isPM = localeIsPM;
+    proto$1.meridiem = localeMeridiem;
+
+    function get$1(format, index, field, setter) {
+        var locale = getLocale(),
+            utc = createUTC().set(setter, index);
+        return locale[field](utc, format);
+    }
+
+    function listMonthsImpl(format, index, field) {
+        if (isNumber(format)) {
+            index = format;
+            format = undefined;
+        }
+
+        format = format || '';
+
+        if (index != null) {
+            return get$1(format, index, field, 'month');
+        }
+
+        var i,
+            out = [];
+        for (i = 0; i < 12; i++) {
+            out[i] = get$1(format, i, field, 'month');
+        }
+        return out;
+    }
+
+    // ()
+    // (5)
+    // (fmt, 5)
+    // (fmt)
+    // (true)
+    // (true, 5)
+    // (true, fmt, 5)
+    // (true, fmt)
+    function listWeekdaysImpl(localeSorted, format, index, field) {
+        if (typeof localeSorted === 'boolean') {
+            if (isNumber(format)) {
+                index = format;
+                format = undefined;
+            }
+
+            format = format || '';
+        } else {
+            format = localeSorted;
+            index = format;
+            localeSorted = false;
+
+            if (isNumber(format)) {
+                index = format;
+                format = undefined;
+            }
+
+            format = format || '';
+        }
+
+        var locale = getLocale(),
+            shift = localeSorted ? locale._week.dow : 0,
+            i,
+            out = [];
+
+        if (index != null) {
+            return get$1(format, (index + shift) % 7, field, 'day');
+        }
+
+        for (i = 0; i < 7; i++) {
+            out[i] = get$1(format, (i + shift) % 7, field, 'day');
+        }
+        return out;
+    }
+
+    function listMonths(format, index) {
+        return listMonthsImpl(format, index, 'months');
+    }
+
+    function listMonthsShort(format, index) {
+        return listMonthsImpl(format, index, 'monthsShort');
+    }
+
+    function listWeekdays(localeSorted, format, index) {
+        return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
+    }
+
+    function listWeekdaysShort(localeSorted, format, index) {
+        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
+    }
+
+    function listWeekdaysMin(localeSorted, format, index) {
+        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
+    }
+
+    getSetGlobalLocale('en', {
+        eras: [
+            {
+                since: '0001-01-01',
+                until: +Infinity,
+                offset: 1,
+                name: 'Anno Domini',
+                narrow: 'AD',
+                abbr: 'AD',
+            },
+            {
+                since: '0000-12-31',
+                until: -Infinity,
+                offset: 1,
+                name: 'Before Christ',
+                narrow: 'BC',
+                abbr: 'BC',
+            },
+        ],
+        dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
+        ordinal: function (number) {
+            var b = number % 10,
+                output =
+                    toInt((number % 100) / 10) === 1
+                        ? 'th'
+                        : b === 1
+                        ? 'st'
+                        : b === 2
+                        ? 'nd'
+                        : b === 3
+                        ? 'rd'
+                        : 'th';
+            return number + output;
+        },
+    });
+
+    // Side effect imports
+
+    hooks.lang = deprecate(
+        'moment.lang is deprecated. Use moment.locale instead.',
+        getSetGlobalLocale
+    );
+    hooks.langData = deprecate(
+        'moment.langData is deprecated. Use moment.localeData instead.',
+        getLocale
+    );
+
+    var mathAbs = Math.abs;
+
+    function abs() {
+        var data = this._data;
+
+        this._milliseconds = mathAbs(this._milliseconds);
+        this._days = mathAbs(this._days);
+        this._months = mathAbs(this._months);
+
+        data.milliseconds = mathAbs(data.milliseconds);
+        data.seconds = mathAbs(data.seconds);
+        data.minutes = mathAbs(data.minutes);
+        data.hours = mathAbs(data.hours);
+        data.months = mathAbs(data.months);
+        data.years = mathAbs(data.years);
+
+        return this;
+    }
+
+    function addSubtract$1(duration, input, value, direction) {
+        var other = createDuration(input, value);
+
+        duration._milliseconds += direction * other._milliseconds;
+        duration._days += direction * other._days;
+        duration._months += direction * other._months;
+
+        return duration._bubble();
+    }
+
+    // supports only 2.0-style add(1, 's') or add(duration)
+    function add$1(input, value) {
+        return addSubtract$1(this, input, value, 1);
+    }
+
+    // supports only 2.0-style subtract(1, 's') or subtract(duration)
+    function subtract$1(input, value) {
+        return addSubtract$1(this, input, value, -1);
+    }
+
+    function absCeil(number) {
+        if (number < 0) {
+            return Math.floor(number);
+        } else {
+            return Math.ceil(number);
+        }
+    }
+
+    function bubble() {
+        var milliseconds = this._milliseconds,
+            days = this._days,
+            months = this._months,
+            data = this._data,
+            seconds,
+            minutes,
+            hours,
+            years,
+            monthsFromDays;
+
+        // if we have a mix of positive and negative values, bubble down first
+        // check: https://github.com/moment/moment/issues/2166
+        if (
+            !(
+                (milliseconds >= 0 && days >= 0 && months >= 0) ||
+                (milliseconds <= 0 && days <= 0 && months <= 0)
+            )
+        ) {
+            milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
+            days = 0;
+            months = 0;
+        }
+
+        // The following code bubbles up values, see the tests for
+        // examples of what that means.
+        data.milliseconds = milliseconds % 1000;
+
+        seconds = absFloor(milliseconds / 1000);
+        data.seconds = seconds % 60;
+
+        minutes = absFloor(seconds / 60);
+        data.minutes = minutes % 60;
+
+        hours = absFloor(minutes / 60);
+        data.hours = hours % 24;
+
+        days += absFloor(hours / 24);
+
+        // convert days to months
+        monthsFromDays = absFloor(daysToMonths(days));
+        months += monthsFromDays;
+        days -= absCeil(monthsToDays(monthsFromDays));
+
+        // 12 months -> 1 year
+        years = absFloor(months / 12);
+        months %= 12;
+
+        data.days = days;
+        data.months = months;
+        data.years = years;
+
+        return this;
+    }
+
+    function daysToMonths(days) {
+        // 400 years have 146097 days (taking into account leap year rules)
+        // 400 years have 12 months === 4800
+        return (days * 4800) / 146097;
+    }
+
+    function monthsToDays(months) {
+        // the reverse of daysToMonths
+        return (months * 146097) / 4800;
+    }
+
+    function as(units) {
+        if (!this.isValid()) {
+            return NaN;
+        }
+        var days,
+            months,
+            milliseconds = this._milliseconds;
+
+        units = normalizeUnits(units);
+
+        if (units === 'month' || units === 'quarter' || units === 'year') {
+            days = this._days + milliseconds / 864e5;
+            months = this._months + daysToMonths(days);
+            switch (units) {
+                case 'month':
+                    return months;
+                case 'quarter':
+                    return months / 3;
+                case 'year':
+                    return months / 12;
+            }
+        } else {
+            // handle milliseconds separately because of floating point math errors (issue #1867)
+            days = this._days + Math.round(monthsToDays(this._months));
+            switch (units) {
+                case 'week':
+                    return days / 7 + milliseconds / 6048e5;
+                case 'day':
+                    return days + milliseconds / 864e5;
+                case 'hour':
+                    return days * 24 + milliseconds / 36e5;
+                case 'minute':
+                    return days * 1440 + milliseconds / 6e4;
+                case 'second':
+                    return days * 86400 + milliseconds / 1000;
+                // Math.floor prevents floating point math errors here
+                case 'millisecond':
+                    return Math.floor(days * 864e5) + milliseconds;
+                default:
+                    throw new Error('Unknown unit ' + units);
+            }
+        }
+    }
+
+    // TODO: Use this.as('ms')?
+    function valueOf$1() {
+        if (!this.isValid()) {
+            return NaN;
+        }
+        return (
+            this._milliseconds +
+            this._days * 864e5 +
+            (this._months % 12) * 2592e6 +
+            toInt(this._months / 12) * 31536e6
+        );
+    }
+
+    function makeAs(alias) {
+        return function () {
+            return this.as(alias);
+        };
+    }
+
+    var asMilliseconds = makeAs('ms'),
+        asSeconds = makeAs('s'),
+        asMinutes = makeAs('m'),
+        asHours = makeAs('h'),
+        asDays = makeAs('d'),
+        asWeeks = makeAs('w'),
+        asMonths = makeAs('M'),
+        asQuarters = makeAs('Q'),
+        asYears = makeAs('y');
+
+    function clone$1() {
+        return createDuration(this);
+    }
+
+    function get$2(units) {
+        units = normalizeUnits(units);
+        return this.isValid() ? this[units + 's']() : NaN;
+    }
+
+    function makeGetter(name) {
+        return function () {
+            return this.isValid() ? this._data[name] : NaN;
+        };
+    }
+
+    var milliseconds = makeGetter('milliseconds'),
+        seconds = makeGetter('seconds'),
+        minutes = makeGetter('minutes'),
+        hours = makeGetter('hours'),
+        days = makeGetter('days'),
+        months = makeGetter('months'),
+        years = makeGetter('years');
+
+    function weeks() {
+        return absFloor(this.days() / 7);
+    }
+
+    var round = Math.round,
+        thresholds = {
+            ss: 44, // a few seconds to seconds
+            s: 45, // seconds to minute
+            m: 45, // minutes to hour
+            h: 22, // hours to day
+            d: 26, // days to month/week
+            w: null, // weeks to month
+            M: 11, // months to year
+        };
+
+    // helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
+    function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
+        return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
+    }
+
+    function relativeTime$1(posNegDuration, withoutSuffix, thresholds, locale) {
+        var duration = createDuration(posNegDuration).abs(),
+            seconds = round(duration.as('s')),
+            minutes = round(duration.as('m')),
+            hours = round(duration.as('h')),
+            days = round(duration.as('d')),
+            months = round(duration.as('M')),
+            weeks = round(duration.as('w')),
+            years = round(duration.as('y')),
+            a =
+                (seconds <= thresholds.ss && ['s', seconds]) ||
+                (seconds < thresholds.s && ['ss', seconds]) ||
+                (minutes <= 1 && ['m']) ||
+                (minutes < thresholds.m && ['mm', minutes]) ||
+                (hours <= 1 && ['h']) ||
+                (hours < thresholds.h && ['hh', hours]) ||
+                (days <= 1 && ['d']) ||
+                (days < thresholds.d && ['dd', days]);
+
+        if (thresholds.w != null) {
+            a =
+                a ||
+                (weeks <= 1 && ['w']) ||
+                (weeks < thresholds.w && ['ww', weeks]);
+        }
+        a = a ||
+            (months <= 1 && ['M']) ||
+            (months < thresholds.M && ['MM', months]) ||
+            (years <= 1 && ['y']) || ['yy', years];
+
+        a[2] = withoutSuffix;
+        a[3] = +posNegDuration > 0;
+        a[4] = locale;
+        return substituteTimeAgo.apply(null, a);
+    }
+
+    // This function allows you to set the rounding function for relative time strings
+    function getSetRelativeTimeRounding(roundingFunction) {
+        if (roundingFunction === undefined) {
+            return round;
+        }
+        if (typeof roundingFunction === 'function') {
+            round = roundingFunction;
+            return true;
+        }
+        return false;
+    }
+
+    // This function allows you to set a threshold for relative time strings
+    function getSetRelativeTimeThreshold(threshold, limit) {
+        if (thresholds[threshold] === undefined) {
+            return false;
+        }
+        if (limit === undefined) {
+            return thresholds[threshold];
+        }
+        thresholds[threshold] = limit;
+        if (threshold === 's') {
+            thresholds.ss = limit - 1;
+        }
+        return true;
+    }
+
+    function humanize(argWithSuffix, argThresholds) {
+        if (!this.isValid()) {
+            return this.localeData().invalidDate();
+        }
+
+        var withSuffix = false,
+            th = thresholds,
+            locale,
+            output;
+
+        if (typeof argWithSuffix === 'object') {
+            argThresholds = argWithSuffix;
+            argWithSuffix = false;
+        }
+        if (typeof argWithSuffix === 'boolean') {
+            withSuffix = argWithSuffix;
+        }
+        if (typeof argThresholds === 'object') {
+            th = Object.assign({}, thresholds, argThresholds);
+            if (argThresholds.s != null && argThresholds.ss == null) {
+                th.ss = argThresholds.s - 1;
+            }
+        }
+
+        locale = this.localeData();
+        output = relativeTime$1(this, !withSuffix, th, locale);
+
+        if (withSuffix) {
+            output = locale.pastFuture(+this, output);
+        }
+
+        return locale.postformat(output);
+    }
+
+    var abs$1 = Math.abs;
+
+    function sign(x) {
+        return (x > 0) - (x < 0) || +x;
+    }
+
+    function toISOString$1() {
+        // for ISO strings we do not use the normal bubbling rules:
+        //  * milliseconds bubble up until they become hours
+        //  * days do not bubble at all
+        //  * months bubble up until they become years
+        // This is because there is no context-free conversion between hours and days
+        // (think of clock changes)
+        // and also not between days and months (28-31 days per month)
+        if (!this.isValid()) {
+            return this.localeData().invalidDate();
+        }
+
+        var seconds = abs$1(this._milliseconds) / 1000,
+            days = abs$1(this._days),
+            months = abs$1(this._months),
+            minutes,
+            hours,
+            years,
+            s,
+            total = this.asSeconds(),
+            totalSign,
+            ymSign,
+            daysSign,
+            hmsSign;
+
+        if (!total) {
+            // this is the same as C#'s (Noda) and python (isodate)...
+            // but not other JS (goog.date)
+            return 'P0D';
+        }
+
+        // 3600 seconds -> 60 minutes -> 1 hour
+        minutes = absFloor(seconds / 60);
+        hours = absFloor(minutes / 60);
+        seconds %= 60;
+        minutes %= 60;
+
+        // 12 months -> 1 year
+        years = absFloor(months / 12);
+        months %= 12;
+
+        // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
+        s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
+
+        totalSign = total < 0 ? '-' : '';
+        ymSign = sign(this._months) !== sign(total) ? '-' : '';
+        daysSign = sign(this._days) !== sign(total) ? '-' : '';
+        hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';
+
+        return (
+            totalSign +
+            'P' +
+            (years ? ymSign + years + 'Y' : '') +
+            (months ? ymSign + months + 'M' : '') +
+            (days ? daysSign + days + 'D' : '') +
+            (hours || minutes || seconds ? 'T' : '') +
+            (hours ? hmsSign + hours + 'H' : '') +
+            (minutes ? hmsSign + minutes + 'M' : '') +
+            (seconds ? hmsSign + s + 'S' : '')
+        );
+    }
+
+    var proto$2 = Duration.prototype;
+
+    proto$2.isValid = isValid$1;
+    proto$2.abs = abs;
+    proto$2.add = add$1;
+    proto$2.subtract = subtract$1;
+    proto$2.as = as;
+    proto$2.asMilliseconds = asMilliseconds;
+    proto$2.asSeconds = asSeconds;
+    proto$2.asMinutes = asMinutes;
+    proto$2.asHours = asHours;
+    proto$2.asDays = asDays;
+    proto$2.asWeeks = asWeeks;
+    proto$2.asMonths = asMonths;
+    proto$2.asQuarters = asQuarters;
+    proto$2.asYears = asYears;
+    proto$2.valueOf = valueOf$1;
+    proto$2._bubble = bubble;
+    proto$2.clone = clone$1;
+    proto$2.get = get$2;
+    proto$2.milliseconds = milliseconds;
+    proto$2.seconds = seconds;
+    proto$2.minutes = minutes;
+    proto$2.hours = hours;
+    proto$2.days = days;
+    proto$2.weeks = weeks;
+    proto$2.months = months;
+    proto$2.years = years;
+    proto$2.humanize = humanize;
+    proto$2.toISOString = toISOString$1;
+    proto$2.toString = toISOString$1;
+    proto$2.toJSON = toISOString$1;
+    proto$2.locale = locale;
+    proto$2.localeData = localeData;
+
+    proto$2.toIsoString = deprecate(
+        'toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)',
+        toISOString$1
+    );
+    proto$2.lang = lang;
+
+    // FORMATTING
+
+    addFormatToken('X', 0, 0, 'unix');
+    addFormatToken('x', 0, 0, 'valueOf');
+
+    // PARSING
+
+    addRegexToken('x', matchSigned);
+    addRegexToken('X', matchTimestamp);
+    addParseToken('X', function (input, array, config) {
+        config._d = new Date(parseFloat(input) * 1000);
+    });
+    addParseToken('x', function (input, array, config) {
+        config._d = new Date(toInt(input));
+    });
+
+    //! moment.js
+
+    hooks.version = '2.29.1';
+
+    setHookCallback(createLocal);
+
+    hooks.fn = proto;
+    hooks.min = min;
+    hooks.max = max;
+    hooks.now = now;
+    hooks.utc = createUTC;
+    hooks.unix = createUnix;
+    hooks.months = listMonths;
+    hooks.isDate = isDate;
+    hooks.locale = getSetGlobalLocale;
+    hooks.invalid = createInvalid;
+    hooks.duration = createDuration;
+    hooks.isMoment = isMoment;
+    hooks.weekdays = listWeekdays;
+    hooks.parseZone = createInZone;
+    hooks.localeData = getLocale;
+    hooks.isDuration = isDuration;
+    hooks.monthsShort = listMonthsShort;
+    hooks.weekdaysMin = listWeekdaysMin;
+    hooks.defineLocale = defineLocale;
+    hooks.updateLocale = updateLocale;
+    hooks.locales = listLocales;
+    hooks.weekdaysShort = listWeekdaysShort;
+    hooks.normalizeUnits = normalizeUnits;
+    hooks.relativeTimeRounding = getSetRelativeTimeRounding;
+    hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
+    hooks.calendarFormat = getCalendarFormat;
+    hooks.prototype = proto;
+
+    // currently HTML5 input type only supports 24-hour formats
+    hooks.HTML5_FMT = {
+        DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm', // <input type="datetime-local" />
+        DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss', // <input type="datetime-local" step="1" />
+        DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS', // <input type="datetime-local" step="0.001" />
+        DATE: 'YYYY-MM-DD', // <input type="date" />
+        TIME: 'HH:mm', // <input type="time" />
+        TIME_SECONDS: 'HH:mm:ss', // <input type="time" step="1" />
+        TIME_MS: 'HH:mm:ss.SSS', // <input type="time" step="0.001" />
+        WEEK: 'GGGG-[W]WW', // <input type="week" />
+        MONTH: 'YYYY-MM', // <input type="month" />
+    };
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('af', {
+        months: 'Januarie_Februarie_Maart_April_Mei_Junie_Julie_Augustus_September_Oktober_November_Desember'.split(
+            '_'
+        ),
+        monthsShort: 'Jan_Feb_Mrt_Apr_Mei_Jun_Jul_Aug_Sep_Okt_Nov_Des'.split('_'),
+        weekdays: 'Sondag_Maandag_Dinsdag_Woensdag_Donderdag_Vrydag_Saterdag'.split(
+            '_'
+        ),
+        weekdaysShort: 'Son_Maa_Din_Woe_Don_Vry_Sat'.split('_'),
+        weekdaysMin: 'So_Ma_Di_Wo_Do_Vr_Sa'.split('_'),
+        meridiemParse: /vm|nm/i,
+        isPM: function (input) {
+            return /^nm$/i.test(input);
+        },
+        meridiem: function (hours, minutes, isLower) {
+            if (hours < 12) {
+                return isLower ? 'vm' : 'VM';
+            } else {
+                return isLower ? 'nm' : 'NM';
+            }
+        },
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[Vandag om] LT',
+            nextDay: '[Môre om] LT',
+            nextWeek: 'dddd [om] LT',
+            lastDay: '[Gister om] LT',
+            lastWeek: '[Laas] dddd [om] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'oor %s',
+            past: '%s gelede',
+            s: "'n paar sekondes",
+            ss: '%d sekondes',
+            m: "'n minuut",
+            mm: '%d minute',
+            h: "'n uur",
+            hh: '%d ure',
+            d: "'n dag",
+            dd: '%d dae',
+            M: "'n maand",
+            MM: '%d maande',
+            y: "'n jaar",
+            yy: '%d jaar',
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
+        ordinal: function (number) {
+            return (
+                number +
+                (number === 1 || number === 8 || number >= 20 ? 'ste' : 'de')
+            ); // Thanks to Joris Röling : https://github.com/jjupiter
+        },
+        week: {
+            dow: 1, // Maandag is die eerste dag van die week.
+            doy: 4, // Die week wat die 4de Januarie bevat is die eerste week van die jaar.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var pluralForm = function (n) {
+            return n === 0
+                ? 0
+                : n === 1
+                ? 1
+                : n === 2
+                ? 2
+                : n % 100 >= 3 && n % 100 <= 10
+                ? 3
+                : n % 100 >= 11
+                ? 4
+                : 5;
+        },
+        plurals = {
+            s: [
+                'أقل من ثانية',
+                'ثانية واحدة',
+                ['ثانيتان', 'ثانيتين'],
+                '%d ثوان',
+                '%d ثانية',
+                '%d ثانية',
+            ],
+            m: [
+                'أقل من دقيقة',
+                'دقيقة واحدة',
+                ['دقيقتان', 'دقيقتين'],
+                '%d دقائق',
+                '%d دقيقة',
+                '%d دقيقة',
+            ],
+            h: [
+                'أقل من ساعة',
+                'ساعة واحدة',
+                ['ساعتان', 'ساعتين'],
+                '%d ساعات',
+                '%d ساعة',
+                '%d ساعة',
+            ],
+            d: [
+                'أقل من يوم',
+                'يوم واحد',
+                ['يومان', 'يومين'],
+                '%d أيام',
+                '%d يومًا',
+                '%d يوم',
+            ],
+            M: [
+                'أقل من شهر',
+                'شهر واحد',
+                ['شهران', 'شهرين'],
+                '%d أشهر',
+                '%d شهرا',
+                '%d شهر',
+            ],
+            y: [
+                'أقل من عام',
+                'عام واحد',
+                ['عامان', 'عامين'],
+                '%d أعوام',
+                '%d عامًا',
+                '%d عام',
+            ],
+        },
+        pluralize = function (u) {
+            return function (number, withoutSuffix, string, isFuture) {
+                var f = pluralForm(number),
+                    str = plurals[u][pluralForm(number)];
+                if (f === 2) {
+                    str = str[withoutSuffix ? 0 : 1];
+                }
+                return str.replace(/%d/i, number);
+            };
+        },
+        months$1 = [
+            'جانفي',
+            'فيفري',
+            'مارس',
+            'أفريل',
+            'ماي',
+            'جوان',
+            'جويلية',
+            'أوت',
+            'سبتمبر',
+            'أكتوبر',
+            'نوفمبر',
+            'ديسمبر',
+        ];
+
+    hooks.defineLocale('ar-dz', {
+        months: months$1,
+        monthsShort: months$1,
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/\u200FM/\u200FYYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم عند الساعة] LT',
+            nextDay: '[غدًا عند الساعة] LT',
+            nextWeek: 'dddd [عند الساعة] LT',
+            lastDay: '[أمس عند الساعة] LT',
+            lastWeek: 'dddd [عند الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'بعد %s',
+            past: 'منذ %s',
+            s: pluralize('s'),
+            ss: pluralize('s'),
+            m: pluralize('m'),
+            mm: pluralize('m'),
+            h: pluralize('h'),
+            hh: pluralize('h'),
+            d: pluralize('d'),
+            dd: pluralize('d'),
+            M: pluralize('M'),
+            MM: pluralize('M'),
+            y: pluralize('y'),
+            yy: pluralize('y'),
+        },
+        postformat: function (string) {
+            return string.replace(/,/g, '،');
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ar-kw', {
+        months: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+        monthsShort: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+        weekdays: 'الأحد_الإتنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'احد_اتنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap = {
+            1: '1',
+            2: '2',
+            3: '3',
+            4: '4',
+            5: '5',
+            6: '6',
+            7: '7',
+            8: '8',
+            9: '9',
+            0: '0',
+        },
+        pluralForm$1 = function (n) {
+            return n === 0
+                ? 0
+                : n === 1
+                ? 1
+                : n === 2
+                ? 2
+                : n % 100 >= 3 && n % 100 <= 10
+                ? 3
+                : n % 100 >= 11
+                ? 4
+                : 5;
+        },
+        plurals$1 = {
+            s: [
+                'أقل من ثانية',
+                'ثانية واحدة',
+                ['ثانيتان', 'ثانيتين'],
+                '%d ثوان',
+                '%d ثانية',
+                '%d ثانية',
+            ],
+            m: [
+                'أقل من دقيقة',
+                'دقيقة واحدة',
+                ['دقيقتان', 'دقيقتين'],
+                '%d دقائق',
+                '%d دقيقة',
+                '%d دقيقة',
+            ],
+            h: [
+                'أقل من ساعة',
+                'ساعة واحدة',
+                ['ساعتان', 'ساعتين'],
+                '%d ساعات',
+                '%d ساعة',
+                '%d ساعة',
+            ],
+            d: [
+                'أقل من يوم',
+                'يوم واحد',
+                ['يومان', 'يومين'],
+                '%d أيام',
+                '%d يومًا',
+                '%d يوم',
+            ],
+            M: [
+                'أقل من شهر',
+                'شهر واحد',
+                ['شهران', 'شهرين'],
+                '%d أشهر',
+                '%d شهرا',
+                '%d شهر',
+            ],
+            y: [
+                'أقل من عام',
+                'عام واحد',
+                ['عامان', 'عامين'],
+                '%d أعوام',
+                '%d عامًا',
+                '%d عام',
+            ],
+        },
+        pluralize$1 = function (u) {
+            return function (number, withoutSuffix, string, isFuture) {
+                var f = pluralForm$1(number),
+                    str = plurals$1[u][pluralForm$1(number)];
+                if (f === 2) {
+                    str = str[withoutSuffix ? 0 : 1];
+                }
+                return str.replace(/%d/i, number);
+            };
+        },
+        months$2 = [
+            'يناير',
+            'فبراير',
+            'مارس',
+            'أبريل',
+            'مايو',
+            'يونيو',
+            'يوليو',
+            'أغسطس',
+            'سبتمبر',
+            'أكتوبر',
+            'نوفمبر',
+            'ديسمبر',
+        ];
+
+    hooks.defineLocale('ar-ly', {
+        months: months$2,
+        monthsShort: months$2,
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/\u200FM/\u200FYYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم عند الساعة] LT',
+            nextDay: '[غدًا عند الساعة] LT',
+            nextWeek: 'dddd [عند الساعة] LT',
+            lastDay: '[أمس عند الساعة] LT',
+            lastWeek: 'dddd [عند الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'بعد %s',
+            past: 'منذ %s',
+            s: pluralize$1('s'),
+            ss: pluralize$1('s'),
+            m: pluralize$1('m'),
+            mm: pluralize$1('m'),
+            h: pluralize$1('h'),
+            hh: pluralize$1('h'),
+            d: pluralize$1('d'),
+            dd: pluralize$1('d'),
+            M: pluralize$1('M'),
+            MM: pluralize$1('M'),
+            y: pluralize$1('y'),
+            yy: pluralize$1('y'),
+        },
+        preparse: function (string) {
+            return string.replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ar-ma', {
+        months: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+        monthsShort: 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split(
+            '_'
+        ),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'احد_اثنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$1 = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        };
+
+    hooks.defineLocale('ar-sa', {
+        months: 'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+        monthsShort: 'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap$1[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 0, // Sunday is the first day of the week.
+            doy: 6, // The week that contains Jan 6th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('ar-tn', {
+        months: 'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+        monthsShort: 'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split(
+            '_'
+        ),
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD/MM/YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[اليوم على الساعة] LT',
+            nextDay: '[غدا على الساعة] LT',
+            nextWeek: 'dddd [على الساعة] LT',
+            lastDay: '[أمس على الساعة] LT',
+            lastWeek: 'dddd [على الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'في %s',
+            past: 'منذ %s',
+            s: 'ثوان',
+            ss: '%d ثانية',
+            m: 'دقيقة',
+            mm: '%d دقائق',
+            h: 'ساعة',
+            hh: '%d ساعات',
+            d: 'يوم',
+            dd: '%d أيام',
+            M: 'شهر',
+            MM: '%d أشهر',
+            y: 'سنة',
+            yy: '%d سنوات',
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 4, // The week that contains Jan 4th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var symbolMap$2 = {
+            1: '١',
+            2: '٢',
+            3: '٣',
+            4: '٤',
+            5: '٥',
+            6: '٦',
+            7: '٧',
+            8: '٨',
+            9: '٩',
+            0: '٠',
+        },
+        numberMap$1 = {
+            '١': '1',
+            '٢': '2',
+            '٣': '3',
+            '٤': '4',
+            '٥': '5',
+            '٦': '6',
+            '٧': '7',
+            '٨': '8',
+            '٩': '9',
+            '٠': '0',
+        },
+        pluralForm$2 = function (n) {
+            return n === 0
+                ? 0
+                : n === 1
+                ? 1
+                : n === 2
+                ? 2
+                : n % 100 >= 3 && n % 100 <= 10
+                ? 3
+                : n % 100 >= 11
+                ? 4
+                : 5;
+        },
+        plurals$2 = {
+            s: [
+                'أقل من ثانية',
+                'ثانية واحدة',
+                ['ثانيتان', 'ثانيتين'],
+                '%d ثوان',
+                '%d ثانية',
+                '%d ثانية',
+            ],
+            m: [
+                'أقل من دقيقة',
+                'دقيقة واحدة',
+                ['دقيقتان', 'دقيقتين'],
+                '%d دقائق',
+                '%d دقيقة',
+                '%d دقيقة',
+            ],
+            h: [
+                'أقل من ساعة',
+                'ساعة واحدة',
+                ['ساعتان', 'ساعتين'],
+                '%d ساعات',
+                '%d ساعة',
+                '%d ساعة',
+            ],
+            d: [
+                'أقل من يوم',
+                'يوم واحد',
+                ['يومان', 'يومين'],
+                '%d أيام',
+                '%d يومًا',
+                '%d يوم',
+            ],
+            M: [
+                'أقل من شهر',
+                'شهر واحد',
+                ['شهران', 'شهرين'],
+                '%d أشهر',
+                '%d شهرا',
+                '%d شهر',
+            ],
+            y: [
+                'أقل من عام',
+                'عام واحد',
+                ['عامان', 'عامين'],
+                '%d أعوام',
+                '%d عامًا',
+                '%d عام',
+            ],
+        },
+        pluralize$2 = function (u) {
+            return function (number, withoutSuffix, string, isFuture) {
+                var f = pluralForm$2(number),
+                    str = plurals$2[u][pluralForm$2(number)];
+                if (f === 2) {
+                    str = str[withoutSuffix ? 0 : 1];
+                }
+                return str.replace(/%d/i, number);
+            };
+        },
+        months$3 = [
+            'يناير',
+            'فبراير',
+            'مارس',
+            'أبريل',
+            'مايو',
+            'يونيو',
+            'يوليو',
+            'أغسطس',
+            'سبتمبر',
+            'أكتوبر',
+            'نوفمبر',
+            'ديسمبر',
+        ];
+
+    hooks.defineLocale('ar', {
+        months: months$3,
+        monthsShort: months$3,
+        weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
+        weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
+        weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'D/\u200FM/\u200FYYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd D MMMM YYYY HH:mm',
+        },
+        meridiemParse: /ص|م/,
+        isPM: function (input) {
+            return 'م' === input;
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 12) {
+                return 'ص';
+            } else {
+                return 'م';
+            }
+        },
+        calendar: {
+            sameDay: '[اليوم عند الساعة] LT',
+            nextDay: '[غدًا عند الساعة] LT',
+            nextWeek: 'dddd [عند الساعة] LT',
+            lastDay: '[أمس عند الساعة] LT',
+            lastWeek: 'dddd [عند الساعة] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'بعد %s',
+            past: 'منذ %s',
+            s: pluralize$2('s'),
+            ss: pluralize$2('s'),
+            m: pluralize$2('m'),
+            mm: pluralize$2('m'),
+            h: pluralize$2('h'),
+            hh: pluralize$2('h'),
+            d: pluralize$2('d'),
+            dd: pluralize$2('d'),
+            M: pluralize$2('M'),
+            MM: pluralize$2('M'),
+            y: pluralize$2('y'),
+            yy: pluralize$2('y'),
+        },
+        preparse: function (string) {
+            return string
+                .replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
+                    return numberMap$1[match];
+                })
+                .replace(/،/g, ',');
+        },
+        postformat: function (string) {
+            return string
+                .replace(/\d/g, function (match) {
+                    return symbolMap$2[match];
+                })
+                .replace(/,/g, '،');
+        },
+        week: {
+            dow: 6, // Saturday is the first day of the week.
+            doy: 12, // The week that contains Jan 12th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    var suffixes = {
+        1: '-inci',
+        5: '-inci',
+        8: '-inci',
+        70: '-inci',
+        80: '-inci',
+        2: '-nci',
+        7: '-nci',
+        20: '-nci',
+        50: '-nci',
+        3: '-üncü',
+        4: '-üncü',
+        100: '-üncü',
+        6: '-ncı',
+        9: '-uncu',
+        10: '-uncu',
+        30: '-uncu',
+        60: '-ıncı',
+        90: '-ıncı',
+    };
+
+    hooks.defineLocale('az', {
+        months: 'yanvar_fevral_mart_aprel_may_iyun_iyul_avqust_sentyabr_oktyabr_noyabr_dekabr'.split(
+            '_'
+        ),
+        monthsShort: 'yan_fev_mar_apr_may_iyn_iyl_avq_sen_okt_noy_dek'.split('_'),
+        weekdays: 'Bazar_Bazar ertəsi_Çərşənbə axşamı_Çərşənbə_Cümə axşamı_Cümə_Şənbə'.split(
+            '_'
+        ),
+        weekdaysShort: 'Baz_BzE_ÇAx_Çər_CAx_Cüm_Şən'.split('_'),
+        weekdaysMin: 'Bz_BE_ÇA_Çə_CA_Cü_Şə'.split('_'),
+        weekdaysParseExact: true,
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY HH:mm',
+            LLLL: 'dddd, D MMMM YYYY HH:mm',
+        },
+        calendar: {
+            sameDay: '[bugün saat] LT',
+            nextDay: '[sabah saat] LT',
+            nextWeek: '[gələn həftə] dddd [saat] LT',
+            lastDay: '[dünən] LT',
+            lastWeek: '[keçən həftə] dddd [saat] LT',
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: '%s sonra',
+            past: '%s əvvəl',
+            s: 'bir neçə saniyə',
+            ss: '%d saniyə',
+            m: 'bir dəqiqə',
+            mm: '%d dəqiqə',
+            h: 'bir saat',
+            hh: '%d saat',
+            d: 'bir gün',
+            dd: '%d gün',
+            M: 'bir ay',
+            MM: '%d ay',
+            y: 'bir il',
+            yy: '%d il',
+        },
+        meridiemParse: /gecə|səhər|gündüz|axşam/,
+        isPM: function (input) {
+            return /^(gündüz|axşam)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'gecə';
+            } else if (hour < 12) {
+                return 'səhər';
+            } else if (hour < 17) {
+                return 'gündüz';
+            } else {
+                return 'axşam';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(ıncı|inci|nci|üncü|ncı|uncu)/,
+        ordinal: function (number) {
+            if (number === 0) {
+                // special case for zero
+                return number + '-ıncı';
+            }
+            var a = number % 10,
+                b = (number % 100) - a,
+                c = number >= 100 ? 100 : null;
+            return number + (suffixes[a] || suffixes[b] || suffixes[c]);
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    function plural(word, num) {
+        var forms = word.split('_');
+        return num % 10 === 1 && num % 100 !== 11
+            ? forms[0]
+            : num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20)
+            ? forms[1]
+            : forms[2];
+    }
+    function relativeTimeWithPlural(number, withoutSuffix, key) {
+        var format = {
+            ss: withoutSuffix ? 'секунда_секунды_секунд' : 'секунду_секунды_секунд',
+            mm: withoutSuffix ? 'хвіліна_хвіліны_хвілін' : 'хвіліну_хвіліны_хвілін',
+            hh: withoutSuffix ? 'гадзіна_гадзіны_гадзін' : 'гадзіну_гадзіны_гадзін',
+            dd: 'дзень_дні_дзён',
+            MM: 'месяц_месяцы_месяцаў',
+            yy: 'год_гады_гадоў',
+        };
+        if (key === 'm') {
+            return withoutSuffix ? 'хвіліна' : 'хвіліну';
+        } else if (key === 'h') {
+            return withoutSuffix ? 'гадзіна' : 'гадзіну';
+        } else {
+            return number + ' ' + plural(format[key], +number);
+        }
+    }
+
+    hooks.defineLocale('be', {
+        months: {
+            format: 'студзеня_лютага_сакавіка_красавіка_траўня_чэрвеня_ліпеня_жніўня_верасня_кастрычніка_лістапада_снежня'.split(
+                '_'
+            ),
+            standalone: 'студзень_люты_сакавік_красавік_травень_чэрвень_ліпень_жнівень_верасень_кастрычнік_лістапад_снежань'.split(
+                '_'
+            ),
+        },
+        monthsShort: 'студ_лют_сак_крас_трав_чэрв_ліп_жнів_вер_каст_ліст_снеж'.split(
+            '_'
+        ),
+        weekdays: {
+            format: 'нядзелю_панядзелак_аўторак_сераду_чацвер_пятніцу_суботу'.split(
+                '_'
+            ),
+            standalone: 'нядзеля_панядзелак_аўторак_серада_чацвер_пятніца_субота'.split(
+                '_'
+            ),
+            isFormat: /\[ ?[Ууў] ?(?:мінулую|наступную)? ?\] ?dddd/,
+        },
+        weekdaysShort: 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
+        weekdaysMin: 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
+        longDateFormat: {
+            LT: 'HH:mm',
+            LTS: 'HH:mm:ss',
+            L: 'DD.MM.YYYY',
+            LL: 'D MMMM YYYY г.',
+            LLL: 'D MMMM YYYY г., HH:mm',
+            LLLL: 'dddd, D MMMM YYYY г., HH:mm',
+        },
+        calendar: {
+            sameDay: '[Сёння ў] LT',
+            nextDay: '[Заўтра ў] LT',
+            lastDay: '[Учора ў] LT',
+            nextWeek: function () {
+                return '[У] dddd [ў] LT';
+            },
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 5:
+                    case 6:
+                        return '[У мінулую] dddd [ў] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                        return '[У мінулы] dddd [ў] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'праз %s',
+            past: '%s таму',
+            s: 'некалькі секунд',
+            m: relativeTimeWithPlural,
+            mm: relativeTimeWithPlural,
+            h: relativeTimeWithPlural,
+            hh: relativeTimeWithPlural,
+            d: 'дзень',
+            dd: relativeTimeWithPlural,
+            M: 'месяц',
+            MM: relativeTimeWithPlural,
+            y: 'год',
+            yy: relativeTimeWithPlural,
+        },
+        meridiemParse: /ночы|раніцы|дня|вечара/,
+        isPM: function (input) {
+            return /^(дня|вечара)$/.test(input);
+        },
+        meridiem: function (hour, minute, isLower) {
+            if (hour < 4) {
+                return 'ночы';
+            } else if (hour < 12) {
+                return 'раніцы';
+            } else if (hour < 17) {
+                return 'дня';
+            } else {
+                return 'вечара';
+            }
+        },
+        dayOfMonthOrdinalParse: /\d{1,2}-(і|ы|га)/,
+        ordinal: function (number, period) {
+            switch (period) {
+                case 'M':
+                case 'd':
+                case 'DDD':
+                case 'w':
+                case 'W':
+                    return (number % 10 === 2 || number % 10 === 3) &&
+                        number % 100 !== 12 &&
+                        number % 100 !== 13
+                        ? number + '-і'
+                        : number + '-ы';
+                case 'D':
+                    return number + '-га';
+                default:
+                    return number;
+            }
+        },
+        week: {
+            dow: 1, // Monday is the first day of the week.
+            doy: 7, // The week that contains Jan 7th is the first week of the year.
+        },
+    });
+
+    //! moment.js locale configuration
+
+    hooks.defineLocale('bg', {
+        months: 'януари_февруари_март_април_май_юни_юли_август_септември_октомври_ноември_декември'.split(
+            '_'
+        ),
+        monthsShort: 'яну_фев_мар_апр_май_юни_юли_авг_сеп_окт_ное_дек'.split('_'),
+        weekdays: 'неделя_понеделник_вторник_сряда_четвъртък_петък_събота'.split(
+            '_'
+        ),
+        weekdaysShort: 'нед_пон_вто_сря_чет_пет_съб'.split('_'),
+        weekdaysMin: 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
+        longDateFormat: {
+            LT: 'H:mm',
+            LTS: 'H:mm:ss',
+            L: 'D.MM.YYYY',
+            LL: 'D MMMM YYYY',
+            LLL: 'D MMMM YYYY H:mm',
+            LLLL: 'dddd, D MMMM YYYY H:mm',
+        },
+        calendar: {
+            sameDay: '[Днес в] LT',
+            nextDay: '[Утре в] LT',
+            nextWeek: 'dddd [в] LT',
+            lastDay: '[Вчера в] LT',
+            lastWeek: function () {
+                switch (this.day()) {
+                    case 0:
+                    case 3:
+                    case 6:
+                        return '[Миналата] dddd [в] LT';
+                    case 1:
+                    case 2:
+                    case 4:
+                    case 5:
+                        return '[Миналия] dddd [в] LT';
+                }
+            },
+            sameElse: 'L',
+        },
+        relativeTime: {
+            future: 'след %s',
+            past: 'преди %s',
+            s: 'няколко секунди',
+            ss: '%d секунди',
+            m: 'минута',
+            mm: '%d минути',
+            h: 'час',
+            hh: '%d часа',
+            d: 'ден',
+            dd: '%d дена',
+            w: 'седмица',
+            ww: '%d седмици',
+            M: 'месец',
+            MM: '%d месеца',
+            y: 'година',
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