[wp-trac] [WordPress Trac] #48623: WP 5.3 time problem causes day number shifts in permalinks

[WordPress Trac]

#48623: WP 5.3 time problem causes day number shifts in permalinks
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 Reporter:  steevithak    |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  5.3.1
Component:  Date/Time     |     Version:  5.3
 Severity:  major         |  Resolution:
 Keywords:                |     Focuses:
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Comment (by Rarst):

 I cannot reproduce this so far. I suspected it's about summer time getting
 fixed up through code base, but example is not close to transitions.

 I tried to reproduce the post at that time, that timezone (I guessed
 central time? tried Chicago and UTC -6) with that permalink structure, in
 local dev install and I don't get it jumping to 23rd.

 This might be caused by shift to UTC somewhere (as in possibly related
 ticket linked), which does get into 23rd for the example, but I don't have
 an idea where might that break. Especially since it doesn't seem to happen
 consistently through the site in either ticket.

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Ticket URL: <https://core.trac.wordpress.org/ticket/48623#comment:4>
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