Open Bug 1765119 Opened 3 years ago

recurring event summary description is confused across timezone / DST changes

Categories

(Calendar :: Dialogs, defect)

Thunderbird 91
defect

Tracking

(Not tracked)

UNCONFIRMED

People

(Reporter: dkg, Unassigned)

Details

Attachments

(1 file)

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:99.0) Gecko/20100101 Firefox/99.0

Steps to reproduce:

I scheduled a meeting to happen at 2021-11-16, from 2:30 UTC to 3:30 UTC. It is marked as repeating "monthly" until 2025-04-22.

Thunderbird's calendar is configured to America/New_York timezone.

I chose "open" on the instance of the event recurrance that happens to land on 2022-04-15 to see the summary dialog.

Actual results:

When i open the event in Thunderbird, the dialog says:

Title: 	demonstration meeting
Calendar: 	Home
Start Date:	Friday, April 15, 2022 19:30 (Saturday, April 16, 2022 02:30, UTC)
End Date:	Friday, April 15, 2022 20:30 (Saturday, April 16, 2022 03:30, UTC)
Repeat: 	Occurs 15 of every month effective 11/15/21 until 4/22/25 from 18:30 to 19:30.

Note that the time in the "Repeat" entry says "18:30-19:30", but the time of the meeting is 19:30-20:30.

Expected results:

The time of the meeting should probably be displayed with its timezone (note that even the date changes in this weird case):

Repeat: 	Occurs 16 of every month effective 11/16/21 until 4/22/25 from 2:30 UTC to 3:30 UTC.

If including the timezone is unacceptable, it should at least show the time of the current meeting being displayed -- it's pretty weird that it says 19:30 to 20:30 in "Start Date" and "End Date", but 18:30 to 19:30 in "Repeat".

Sigh, daylight savings time.

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