Date and time system values: Time zone

The Time zone system value is also known as QTIMZON. This system value specifies the time zone information used to calculate the local system time. All current settings contain either the standard time or daylight saving time (DST) values depending on whether DST is in effect.

Note: If a change to a different time zone description results in a different offset, the change causes the local system time, system value QTIME, to change. In addition, the system value QUTCOFFSET changes to match this new offset.

Quick reference
Location	From System i® Navigator, expand `your system` > Configuration and Service > Time Management > Time Zones.
Special authority	All object (*ALLOBJ).
Default value	Determined by the system. For more information, see Initial time zone setting.
Changes take effect	Immediately.
Lockable	No.

What can I do with this system value?

You can specify the time zone to be used on the system. You can select an IBM-supplied time zone or create your own. The time zone specifies the following time zone information:

Offset from UTC
Standard time names
DST names
DST start
DST end
Year offset
Note: The Year offset information is not shown on systems running IBM® i V5R4, or earlier. It is also not shown if the value is zero.

You can access the Time zone system value from two locations in System i Navigator. To view the current time zone, expand your system > Configuration and Service > System Values > Date and Time > Time. To work with the time zones, expand your system > Configuration and Service > Time Management > Time Zones.

You can use the time management function of System i Navigator to work with this system value. Using the time management function, you can identify a time zone for the system to use. You can also identify a time maintenance application to synchronize your system time with an external time source.