[wp-trac] [WordPress Trac] #13173: get_date_from_gmt does not properly convert non-DST dates when DST is in effect and vice versa.

[WordPress Trac]

#13173: get_date_from_gmt does not properly convert non-DST dates when DST is in
effect and vice versa.
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 Reporter:  cfinke        |       Owner:            
     Type:  defect (bug)  |      Status:  new       
 Priority:  normal        |   Milestone:  Unassigned
Component:  Date/Time     |     Version:            
 Severity:  normal        |    Keywords:            
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 If it is May 1 where I am and daylight-savings time is in effect, and I
 schedule a post for December 1 at noon (when DST is not in effect) via
 XML-RPC using the date_created_gmt parameter, my post will actually be
 scheduled for December 1 at 1pm.  This is due to the fact that
 get_date_from_gmt uses the current timezone offset to convert the date
 from GMT to local time rather than the timezone offset specific to the
 date it is converting.

 The root issue I suppose is that get_option('gmt_offset') doesn't know
 when it's getting the gmt_offset for.  Fixing that would probably fix a
 number of other daylight-savings time related issues in Wordpress.

 Tested in Wordpress 2.9.2 and the current Wordpress.com.

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Ticket URL: <http://core.trac.wordpress.org/ticket/13173>
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