The following is based on extracting a user's time zone from a JAZN XML file.

To change the time zone:

Change the string in bold to set the user's preferred time zone.

<timeZone>America/Los_Angeles</timeZone>

The format of the time zone string is Continent/Region. You can find the time zone values in the $JAVA_HOME/jre/lib/zi directory. The directories specify the continent names, for example Africa, Asia, America, and so on, while the files within the directories specify the regions. Some regions include sub-regions, for example America/Indiana/Indianapolis.