Fernando Karnagi’s Weblog

Actually, the basic way to change the WAS on AIX TimeZone setting is to change the AIX server date/time & timezone using SMITTY tool. But if you cannot, then follow the rest of this article to get it done.

You can try this link, to set the WebSphere Variable

http://publib.boulder.ibm.com/infocenter/wasinfo/v6r0/topic/com.ibm.websphere.express.doc/info/exp/ae/trun_svr_timezones.html

Another option is to modify the WebSphere Application Server command line arguments to use a specific timezone. Please do the following steps:

1. Go to: Application servers > WebSphere_Portal > Process Definition > Java Virtual Machine

2. In Generic JVM agrument box. Add the following at the end of the command

-Duser.timezone=<id>

Example:
-Duser.timezone=Asia/Singapore

3. Stop and restart the portal server.