[GitHub] [arrow] jorisvandenbossche commented on a change in pull request #12240: ARROW-14442 [R]behaviour when converting timestamps with "" as tzone

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jorisvandenbossche commented on a change in pull request #12240:
URL: https://github.com/apache/arrow/pull/12240#discussion_r791773567



##########
File path: r/tests/testthat/test-Array.R
##########
@@ -985,3 +985,14 @@ test_that("Array to C-interface", {
   delete_arrow_schema(schema_ptr)
   delete_arrow_array(array_ptr)
 })
+
+test_that("Array coverts timestamps with missing timezone /assumed local tz correctly", {
+  withr::with_envvar(c(TZ = "America/Chicago"), {
+    a <- as.POSIXct("1970-01-01 00:00:00")
+    attr(a, "tzone") <- Sys.getenv("TZ")

Review comment:
       > but rather the UTC date-time corresponding to the _absolute value_ with the desired timezone label, which I think it would be terribly confusing.
   
   You need to offset for the confusing display in Arrow. Assuming that is fixed, would the result still be confusing? 




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