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https://issues.apache.org/jira/browse/HIVE-14412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15533452#comment-15533452
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Alan Gates commented on HIVE-14412:
-----------------------------------

Agree the TZ <-> non TZ conversions look like they match up with the spec.

Using the GMT+/-HH:MM format for timezone matches the spec, but it does create 
a weird situation for many users where 1/2 the year their times will be off by 
an hour.  I think the big question is can the underlying infrastructure handle 
it, as we don't want Hive in the business of understanding when DST starts and 
stops all over the world.


> Add a timezone-aware timestamp
> ------------------------------
>
>                 Key: HIVE-14412
>                 URL: https://issues.apache.org/jira/browse/HIVE-14412
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Hive
>            Reporter: Rui Li
>            Assignee: Rui Li
>         Attachments: HIVE-14412.1.patch, HIVE-14412.2.patch, 
> HIVE-14412.3.patch, HIVE-14412.4.patch, HIVE-14412.5.patch, 
> HIVE-14412.6.patch, HIVE-14412.7.patch, HIVE-14412.8.patch
>
>
> Java's Timestamp stores the time elapsed since the epoch. While it's by 
> itself unambiguous, ambiguity comes when we parse a string into timestamp, or 
> convert a timestamp to string, causing problems like HIVE-14305.
> To solve the issue, I think we should make timestamp aware of timezone.



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