I've installed Zimbra Open Source Edition 4.5.5 on Mac OSX and am trying to include my iCal calendars in Zimbra. I can add those using the "New Calendar/remote calendar" option and then the Calendar is displayed. However, the times are 9 hours off. (9 hours is exactly the difference between my location and the California.)
Attached is an example ICS file with (with txt extension) and a screenshot of how it shows up in zimbra. As you can see it should be July 18th, 16:45. But it is displayed in Zimbra July 19th 1:45 AM.
Any idea what the problem is?