421699 - Event not shown in Today Pane unless remove timezone info from ICS file

Status: RESOLVED WORKSFORME

(Calendar :: Lightning Only, defect)

Description

[Pete Riley]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.12) Gecko/20080201 Firefox/2.0.0.12
Build Identifier: Thunderbird 2.0.0.9 / Lightning 0.8pre 2008-03-07 19

I have an allday event that recurs yearly on the second Sunday of March to remind me about DST.  By the way, DST starts tomorrow in the U.S.  This event shows in month view but doesn't show in the agenda in the Today Pane.

It seems to be related to timezones because my existing local .ics file contains timezone information (i.e. BEGIN:VTIMEZONE) where I see the problem.  If I create a new local .ics file and re-create the event, the event correctly shows in the Today Pane and inside this .ics file there are no timezone definitions.

Perhaps it's related to bug 413908.
There's nothing in the Error Console.

I don't know if it matters, but FYI my timezone is set to "Eastern Time" in Windows and "America/New York" in Lightning.  Both are currently GMT-0500 but will be GMT-0400 tomorrow when DST starts here.  I first noticed the problem on Friday but the problem might have existing before that.  It might not be related to DST.  It might just be related to timezones in general.

I'll attach two calendar files:  "works.ics" and "fails.ics"

Reproducible: Always

Steps to Reproduce:
1) If you're not in my timezone, to reproduce this you might have to either change your timezone in the OS and Lightning, or perhaps just change it in the .ics files.  Or maybe it doesn't matter, I don't know.

2) Subscribe to file:///C:/works.ics.  You can see the "DST" event in the month view and in the Today Pane.

3) Unsubscribe from that and subscribe to file:///C:/fails.ics.

4) Restart Thunderbird

Actual Results:  
The event is in the month view but not in the Today Pane.

Expected Results:  
It should be in both.  Currently today is Saturday so I expect to see the event in the "Tomorrow" section of the agenda.

I think I'm going to recreate all of my ics files and I suspect this will fix the problem for me.  However, it seems that this problem could affect a lot of users.  Perhaps this is why Clint was warning people.  Perhaps users should be warned again but with more specific information about the cause and the solution.

Ideally, Lightning would handle this automatically.

Comment 1

[Pete Riley]

Attachment: works.ics

Comment 2

[Pete Riley]

Attachment: fails.ics

Comment 3

[Pete Riley]

Comment on attachment 308164 [details]
works.ics

File with no timezone definitions

Comment 4

[Pete Riley]

Comment on attachment 308165 [details]
fails.ics

File with timezone definitions

Comment 5

[Pete Riley]

I can't reproduce this anymore.  If it happens again next year, I'll re-open the bug.