How Do I Configure Zimbra?
How do I copy over shared calendars into the new Zimbra system? Shared calendars are copied the same way as personal calendars with the exception, the owner of the calendar needs to export the calendar.
You should see a message displayed in a box "Import Started‟ and then "Import Successful‟ after the import is finished. You can then view your calendar by click the Calendar tab located beside the Address Book tab.