[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):

 @steevithak

 > In answer to @archon810, I found this in the themes functions.php:
 > date_default_timezone_set("America/Chicago")

 Yep, likely same thing. Please try dropping any and all
 `date_default_timezone_set()` calls (not counting WordPress core boot
 itself).

 I will look into patching `get_permalink()` to be more resilient about
 this (we are slowly doing this through the whole core), but in general
 changing PHP time zone in WP breaks things and isn't normal mode of
 operation.

 @archon810 are you good now?

 @maciejmackowiak could you please check for same issue, any
 `date_default_timezone_set()` in your code?

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Ticket URL: <https://core.trac.wordpress.org/ticket/48623#comment:20>
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