RRULE:FREQ=YEARLY WKST=MO INTERVAL=1 BYMONTH=11 BYDAY=1SU TZID:(GMT-08.00) Pacific Time (US & Canada) The following example is the VTIMEZONE definition for US Pacific Time. The following section identifies each part of the VTIMEZONE definitions.Įach timezone listed in the timezone.ics file is described using a VTIMEZONE definition. Changes to the timezone.ics file become effective when the mailboxd process is restarted. To change a time zone, you must locate and edit its VTIMEZONE definition. These default time zones must be chosen from the time zones defined in the timezones.ics file. conference rooms) must have a default time zone set to auto-accept/decline meetings.
The basic client and other JSP-based clients must know an account's default time zone to render the Calendar view. This file is a valid iCalendar (RFC2445) object containing a VTIMEZONE block for each time zone. The timezones.ics file contains a list of well-known time zones. The following tools are used to define and change time zone settings in ZCS.
Time zones list update#
Using zmtzupdate, update existing appointments with the changed time zone settings. In the timezones.ics file, make the necessary changes to the relevant VTIMEZONE entry.ģ. Use the following instructions to change a time zone setting on a ZCS server.ġ. Note: Zimbra recommends testing the update rules in the zmtzupdate rule file by running zmtzupdate on a few test accounts before applying the the updated file to all accounts to be updated. For more information on creating this file, refer to zmtzupdate rule file. Once you have the complete list of time zones to be updated, you can create a zmtzupdate rule file, containing all update rules. Repeat this process for other appointments that show incorrect times. You can then create a replacement rule by TZID, offset, rules, etc. Match this TZID with the VTIMEZONE listed at the beginning of the. The DTSTART of the appointment should refer to a TZID. Find the wrong appointment in the resulting.
Take note of an appointment that is showing at the wrong time, then REST export the calendar. The easiest way to identify this is via REST export of a user's calendar. To read more about how ZCS interacts with time zones, see Time Zones in ZCS.īefore you start changing a time zone on a deployed ZCS server, review the following instructions and the descriptions of the tools you will use.īefore changing the time zone settings on a deployed ZCS server, it is recommended that you create a backup.īefore you begin changing a time zone setting and applying those changes, you should identify which time zone needs updating. This article discusses the tools and steps used to change time zone settings in a deployed Zimbra Collaboration Suite server. When a time zone changes, it is necessary to change the time zone settings in ZCS. Time zones change when governments change daylight saving time policies. This article is a Work in Progress, and may be unfinished or missing sections.
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