Changing time zone settings

In some application environments, it is important that application server components use the same time zone. You can use the administrative console to ensure that your application components use the correct time zone.

Before you begin

[iSeries] Verify that extended National Language Support (NLS) is installed on your i5/OS® server. If extended NLS support is not already installed, install it by selecting option 21 when you install the base operating system (5769-SS1).

Determine the scope at which you want to set the time zone value. You can set the time zone value such that is applies for an entire cell, for an entire node, or only for a specific server.

Remember that time zone IDs should include an offset and, in almost all cases, a daylight saving time zone name for consistent results. For example, specify EST5EDT for Eastern Standard Time, Daylight Savings Time.

[HP-UX] When the East African Time Zone (EAT) is specified as your time zone setting, the HP-UX operating system Java virtual machine (JVM) uses Greenwich Mean Time (GMT). Therefore, log file time stamps are based on GMT instead of EAT. The situation might also causes problems in server federation if you attempt to synchronize with servers that are running on an operating system whose JVM correctly handles the EAT.

[HP-UX] If you need to use East African Time Zone as the time zone setting for a specific function, instead of using the following procedure, add the -Duser.timezone=EAT parameter to the appropriate Java command. For example, to have an application server use EAT as its time zone setting, add the -Duser.timezone=EAT parameter to the startServer command.

About this task

[z/OS] You can specify the Unix System Services (USS) TZ variable as a WebSphere® variable to set the time stamps for your application logs.

[iSeries] You can change the time zone setting for a single application server, for all of the application servers running under a user profile, or for all of the JVM processes running on the WebSphere Application Server subsystem.

[AIX HP-UX Linux Solaris Windows] You can use the WebSphere TZ variable to change the time zone setting for a single application server.

Complete one or more of the following actions to set appropriate time zone values for your environment.

Procedure

Results

Your new time zone setting are in affect for the designated servers.



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Last updatedLast updated: Aug 31, 2013 4:28:44 AM CDT
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