Changing ZCS Time Zones: Difference between revisions
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Time zones change when governments change daylight saving time policies. When a time zone changes, it is necessary to change the time zone settings in ZCS. This article discusses the tools used to change time zone settings in a deployed Zimbra Collaboration Suite server | Time zones change when governments change daylight saving time policies. When a time zone changes, it is necessary to change the time zone settings in ZCS. This article discusses the tools and steps used to change time zone settings in a deployed Zimbra Collaboration Suite server. | ||
To read more about how ZCS interacts with time zones, see [[Time Zones in ZCS]]. | |||
=ZCS Time Zone Tools= | =ZCS Time Zone Tools= | ||
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==timezones.ics== | ==timezones.ics== | ||
The timezones.ics file contains a list of well-known time zones. This file is a valid iCalendar (RFC2445) object containing a VTIMEZONE block for each time zone. It is located in '''/opt/zimbra/conf/'''. | The timezones.ics file contains a list of well-known time zones. This file is a valid iCalendar (RFC2445) object containing a VTIMEZONE block for each time zone. It is located in '''/opt/zimbra/conf/'''. | ||
The basic client and other JSP-based clients must know an account's default time zone to render the Calendar view. Calendar resource accounts (e.g. conference rooms) must have a default time zone set to auto-accept/decline meetings. These default time zones must be chosen from the time zones defined in the timezones.ics file. | |||
To change a time zone, you must locate and edit its VTIMZONE definition. The following section identifies each part of the VTIMEZONE definitions. | |||
===VTIMEZONE Definitions=== | |||
The following VTIMEZONE definition is for the US Pacific time zone. | |||
BEGIN:VTIMEZONE | |||
TZID:(GMT-08.00) Pacific Time (US & Canada) | |||
LAST-MODIFIED:20070209T005655Z | |||
BEGIN:STANDARD | |||
DTSTART:16010101T020000 | |||
TZOFFSETTO:-0800 | |||
TZOFFSETFROM:-0700 | |||
RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=11;BYDAY=1SU | |||
END:STANDARD | |||
BEGIN:DAYLIGHT | |||
DTSTART:16010101T020000 | |||
TZOFFSETTO:-0700 | |||
TZOFFSETFROM:-0800 | |||
RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=3;BYDAY=2SU | |||
END:DAYLIGHT | |||
END:VTIMEZONE | |||
The following table identifies each part of the VTIMEZONE definition. | |||
===Examples=== | ===Examples=== | ||
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=Changing a ZCS Time Zone Setting= | =Changing a ZCS Time Zone Setting= | ||
{{Article Footer|ZCS 5.0.x|10/6/2008}} | {{Article Footer|ZCS 5.0.x|10/6/2008}} | ||
[[Category: Administration]] | [[Category: Administration]] | ||
Revision as of 21:03, 6 October 2008
Time zones change when governments change daylight saving time policies. When a time zone changes, it is necessary to change the time zone settings in ZCS. This article discusses the tools and steps used to change time zone settings in a deployed Zimbra Collaboration Suite server.
To read more about how ZCS interacts with time zones, see Time Zones in ZCS.
ZCS Time Zone Tools
The following tools are used to define and change time zone settings in ZCS.
timezones.ics
The timezones.ics file contains a list of well-known time zones. This file is a valid iCalendar (RFC2445) object containing a VTIMEZONE block for each time zone. It is located in /opt/zimbra/conf/.
The basic client and other JSP-based clients must know an account's default time zone to render the Calendar view. Calendar resource accounts (e.g. conference rooms) must have a default time zone set to auto-accept/decline meetings. These default time zones must be chosen from the time zones defined in the timezones.ics file.
To change a time zone, you must locate and edit its VTIMZONE definition. The following section identifies each part of the VTIMEZONE definitions.
VTIMEZONE Definitions
The following VTIMEZONE definition is for the US Pacific time zone.
BEGIN:VTIMEZONE TZID:(GMT-08.00) Pacific Time (US & Canada) LAST-MODIFIED:20070209T005655Z BEGIN:STANDARD DTSTART:16010101T020000 TZOFFSETTO:-0800 TZOFFSETFROM:-0700 RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=11;BYDAY=1SU END:STANDARD BEGIN:DAYLIGHT DTSTART:16010101T020000 TZOFFSETTO:-0700 TZOFFSETFROM:-0800 RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=3;BYDAY=2SU END:DAYLIGHT END:VTIMEZONE
The following table identifies each part of the VTIMEZONE definition.
Examples
zmtzupdate
Syntax
Options
zmtzupdate rule file
Attributes
Example Rule File
Examples
Changing a ZCS Time Zone Setting
