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Maniphest T94383

Page history time stamp inconsistency after DST start: Incorrect time shown when using default time zone
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Description

As reported on dewiki, the page history of the Leonardo DiCaprio article got mixed up after clock change (CET to CEST).

See commons:File:WP-Fehler-Zeitumstellungsucks-DiCaprio-History.png (edits from 29 Mar 2015‎).

I can reproduce this when logged out. After logging in (using timezone Berlin), the edits are 01:58, 29. Mär. 2015‎ and 03:00, 29. Mär. 2015‎ which is correct.

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Event Timeline

Thgoiter created this task.Mar 30 2015, 7:53 AM
Thgoiter raised the priority of this task from to Needs Triage.
Thgoiter updated the task description. (Show Details)
Thgoiter subscribed.
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptMar 30 2015, 7:53 AM
Aklapper renamed this task from Page history jumbled after clock change to Page history time stamp inconsistencies after daylight saving time change in Europe.Mar 30 2015, 9:14 AM
Aklapper triaged this task as Medium priority.
Aklapper added a project: MediaWiki-Page-diffs.
Aklapper set Security to None.
Fomafix subscribed.Mar 30 2015, 9:36 AM
Florian subscribed.Mar 30 2015, 12:36 PM
Umherirrender subscribed.Mar 30 2015, 6:07 PM

For me this is the more technical bug T21516 or T34297

Aklapper renamed this task from Page history time stamp inconsistencies after daylight saving time change in Europe to Page history time stamp inconsistency after DST start: Incorrect time shown for logged-out users only.Apr 1 2015, 9:57 AM
Aklapper lowered the priority of this task from Medium to Low.Jun 15 2015, 1:00 PM
Umherirrender unsubscribed.Jul 5 2015, 7:15 PM
Fomafix added a comment.Oct 25 2015, 9:21 AM

The problem still exists for anonymous user:

When I'm logged in I see the same timestamps in the diff and in the history. When I log out the first entry has a timestamp of 25. Oktober 2015, 01:37 Uhr.

WMDE-leszek subscribed.May 23 2016, 3:17 PM
Aklapper added a project: MediaWiki-Page-history.Sep 20 2019, 7:44 PM
Count_Count subscribed.Apr 1 2021, 8:58 PM
FriedhelmW subscribed.Apr 2 2021, 9:31 AM
FriedhelmW added a comment.Apr 2 2021, 11:59 AM

The wrong time (plus two hours) is also shown to logged-in users when they have chosen Use wiki default („Standardzeit dieses Wikis nutzen (Europa/Berlin)“, MediaWiki:Timezoneuseserverdefault) in their user settings.

FriedhelmW renamed this task from Page history time stamp inconsistency after DST start: Incorrect time shown for logged-out users only to Page history time stamp inconsistency after DST start: Incorrect time shown when using default time zone.Apr 2 2021, 12:17 PM
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