Bug 308172

Summary:	Inconsistent display of recurring events in UTC
Product:	[Applications] korganizer	Reporter:	Christian Mollekopf <mollekopf>
Component:	timezones	Assignee:	kdepim bugs <pim-bugs-null>
Status:	RESOLVED UNMAINTAINED
Severity:	normal	CC:	smartins
Priority:	LO
Version First Reported In:	GIT (master)
Target Milestone:	---
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Recurring UTC event showing the problem Screenshot illustrating the data shown after selecting the recurring event. Same occurence showing the correct data after clicking next to the event

Description Christian Mollekopf 2012-10-10 11:32:21 UTC

I have a recurring event, created during wintertime with start=10:00UTC and end=11:00UTC.
I am testing this right now (during summertime, CEST), as the result is likely to depend on the local timezone.
Now there are several display issues with the event:
Right-Click -> Show =>  "Time: 11.00 - 12.00"  Should be: "Time:12.00 - 13.00"
Display on the left and Tooltip: "Time: 12.00"  Should be: "Time:12.00 - 13.00"
Editor: "Time: 11.00 - 12.00 Timezone: Europe/Zurich"  Should be: "Time:10.00 - 11.00 UTC"

Note that the event is correctly displayed in the Day-Timetable view.

When checking during wintertime (in January):
Right-Click -> Show =>  "Time: 11.00 - 12.00"  Correct
Display on the left and Tooltip: "Time: 00.00"  Should be: "Time:12.00 - 13.00"
Editor: same as above

The "Display on the left" only shows the invalid data after clicking on the event. When just clicking somewhere in the timetable view, it displays the correct information. (See screenshot)

The editor issue is probably related to: https://bugs.kde.org/show_bug.cgi?id=308169

Reproducible: Always

Steps to Reproduce:
1. Check the attached ics file

Comment 1 Christian Mollekopf 2012-10-10 11:33:11 UTC

Created attachment 74454 [details]
Recurring UTC event showing the problem

Comment 2 Christian Mollekopf 2012-10-10 11:35:08 UTC

Created attachment 74455 [details]
Screenshot illustrating the data shown after selecting the recurring event.

Comment 3 Christian Mollekopf 2012-10-10 11:37:43 UTC

Created attachment 74456 [details]
Same occurence showing the correct data after clicking next to the event

Comment 4 Christian Mollekopf 2013-03-07 00:18:53 UTC

Since the editor issue has been fixed meanwhile, there is only one inconsistency left:
If the event is recurring, and stored in UTC, it is moved correctly in the calendar view by one hour over the DST change, but the sidebar view and the "show" option display the event with the currently active DST offset (as opposed to the one applicable to the currently selected time in the calendar).

So if I have an event at 10:00 UTC, which recurs at 11:00 in my timezone without DST, and I look at it when DST applies, I get:
- 12:00 in the calendar (correct)
- 11:00 in the sidebar, the "show" view and the tooltip (should probably also be 12:00 I think)

Comment 5 Denis Kurz 2016-09-24 18:46:53 UTC

This bug has only been reported for versions before 4.14, which have been unsupported for at least two years now. Can anyone tell if this bug still present?

If noone confirms this bug for a Framework-based version of korganizer (version 5.0 or later, as part of KDE Applications 15.08 or later), it gets closed in about three months.

Comment 6 Denis Kurz 2017-01-07 21:45:31 UTC

Just as announced in my last comment, I close this bug. If you encounter it again in a recent version (at least 5.0 aka 15.08), please open a new one unless it already exists. Thank you for all your input.