We have a Mac user running FF 188.8.131.52 and attaching to Zimbra NE 4.03. When she tries to create an appointment on March 28, 2007 at 10:00 AM, it appears as 11:00 AM on the Weekly (or any other ) calendar view, but the appointment shows correctly at 10:00 AM when it is opened. Here are some of the parameters we've discovered.
This does not occur for FF on a Windows system.
The problem seems related to the change in when Daylight Savings Time will occur in the US. Appointments before March 11 or after April 1 are ok. However, appointments in between (which will be DST for 2007 but were not for 2006) are off by an hour.
Zimbra correctly indicates the appointment time zone is US/Pacific. When the calendar is viewed from iCal, the time zone is given as "America/Dawson".
Anyone else seeing this? Is it fixed in 4.04 or 4.5? Should I file this in Bugzilla? Thanks.