[jira] [Updated] (PDFBOX-2420) DateConverter doesn't handle time zones outside -12 to +12 range properly

["John Hewson (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PDFBOX-2420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

John Hewson updated PDFBOX-2420:
--------------------------------
    Fix Version/s: 2.0.0

> DateConverter doesn't handle time zones outside -12 to +12 range properly
> -------------------------------------------------------------------------
>
>                 Key: PDFBOX-2420
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2420
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Utilities
>    Affects Versions: 2.0.0
>            Reporter: Arjohn Kampman
>             Fix For: 2.0.0
>
>
> DateConverter normalizes time zones in restrainTZoffset(...) to a value that is between -12:00 and +12:00. So a time zone like +13:00 gets normalized to -11:00. However, the date itself is not adapted accordingly. As a result, a time stamp like "2014-7-20T05:0:00+1300" gets changed to "2014-7-20T05:0:00-1100", which is actually 24 hours later! To compensate for the time zone change, 24 hours should have been subtracted from the date: "2014-7-19T05:0:00-1100".
> Personally, I'd prefer to leave the time zones untouched completely. Note that XML Schema defines time zones up to +/- 14:00 to be valid: http://www.w3.org/TR/xmlschema-2/#dateTime-timezones. For any time zones out of that range either generate an error or consider a garbage-in-garbage-out policy.



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