373813 - Calender events from GCAL are one hour ahead after DST change March 11th

Status: RESOLVED DUPLICATE of bug 365812

(Calendar :: Calendar Frontend, defect)

Description

[Chris Vanhoof]

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.0.10) Gecko/20070226 Fedora/1.5.0.10-1.fc6 Firefox/1.5.0.10 pango-text
Build Identifier: 0.3.1

I read a google calander through sunbird, and all events created prior to the DST change are accurate in regards to time, but any event created after March 11th, or any re-occuring event is an hour ahead.  

Reproducible: Always

Steps to Reproduce:
1. Setup Google Calander -- (Have not tried with other Calander)
2. Setup this calander in sunbird using the url provided by Google
Actual Results:  
Times for all events will be one hour ahead (from 1pm->2pm) -- What is strange is that my calander looks fine in google, evolution, and Kontact.

I tested with the latest nightly builds, and the problem remains.  I also went in each event, and re-saved them.  The changes then apply to sunbird, but when a calendar refresh is triggered, the times all push forward an hour again.

Any event added before March 11th works as expected.

Expected Results:  
Times should match on each end.

I have only tested this on a Fedora Core 6 x86_64 machine.  The time is accurate:

(root@bubbles)(501/pts/6)(04:48pm:03/13/07)-
(#:~)- zdump -v /etc/localtime | grep 2007
/etc/localtime  Sun Mar 11 06:59:59 2007 UTC = Sun Mar 11 01:59:59 2007 EST isdst=0 gmtoff=-18000
/etc/localtime  Sun Mar 11 07:00:00 2007 UTC = Sun Mar 11 03:00:00 2007 EDT isdst=1 gmtoff=-14400
/etc/localtime  Sun Nov  4 05:59:59 2007 UTC = Sun Nov  4 01:59:59 2007 EDT isdst=1 gmtoff=-14400
/etc/localtime  Sun Nov  4 06:00:00 2007 UTC = Sun Nov  4 01:00:00 2007 EST isdst=0 gmtoff=-18000
(root@bubbles)(502/pts/6)(04:48pm:03/13/07)-
(#:~)- date
Tue Mar 13 16:48:36 EDT 2007

I also have America/New_York selected in the timezone preferences.

Comment 1

[Martin Schröder [:mschroeder]]

Chris, please attach the exported ICS file from Google Calendar or at least the VTIMEZONE part. You could additionally attach the exported ICS file from Sunbird.

Comment 2

[Stefan Sitter [:ssitter]]

Same issue as discussed in Bug 365812 Comment #9 and following comments?

Comment 3

[Chris Vanhoof]

Attachment: example event scheduled in gcal

Here is an example I just created.  I set this event in gcal for 2pm EDT, it shows up once refreshed at 3pm EDT

Comment 4

[Bas van den Bosch]

BEGIN:VTIMEZONE
TZID:America/New_York
X-LIC-LOCATION:America/New_York
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:19701025T020000
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=10
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:19700405T020000
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=1SU;BYMONTH=4
END:DAYLIGHT
END:VTIMEZONE

google has it's timezone wrong, see http://code.google.com/p/google-gdata/issues/detail?id=54