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https://issues.apache.org/jira/browse/HIVE-6009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15647109#comment-15647109
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Naveen Kumar Mahadevuni commented on HIVE-6009:
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Hi. I'm starting as a contributor. I would like to work on this. Is anyone else 
working on similar changes? HIVE-345, HIVE-2867 and HIVE-6040 are also related 
to this.

> Add from_unixtime UDF that has controllable Timezone
> ----------------------------------------------------
>
>                 Key: HIVE-6009
>                 URL: https://issues.apache.org/jira/browse/HIVE-6009
>             Project: Hive
>          Issue Type: Improvement
>          Components: CLI
>    Affects Versions: 0.10.0
>         Environment: CDH4.4
>            Reporter: Johndee Burks
>            Priority: Trivial
>
> Currently the from_unixtime UDF takes into a account timezone of the system 
> doing the transformation. I think that implementation is good, but it would 
> be nice to include or change the current UDF to have a configurable timezone. 
> It would be useful for looking at timestamp data from different regions in 
> the native region's timezone. 
> Example: 
> from_unixtime(unix_time, format, timezone)
> from_unixtime(1293840000, dd MMM yyyy, GMT-5)



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