Java TimeZone

TimeZone represents a time zone offset, and also figures out daylight savings. Typically, you get a TimeZone using getDefault which creates a TimeZone based on the time zone where the program is running. For example, for a program running in Japan, getDefault creates a TimeZone object based on Japanese Standard Time.

You can also get a TimeZone using getTimeZone along with a time zone ID. For instance, the time zone ID for the U.S. Pacific Time zone is “America/Los_Angeles”. So, you can get a U.S. Pacific Time TimeZone object with

TimeZone tz = TimeZone.getTimeZone("America/Los_Angeles");

You can force the #Java Virtual Machine to use a specific TimeZone by adding a –D to its start parameter

-Duser.timezone="America/Los_Angeles"

In this example any server located outside the U.S. Pacific Time zone can still create timestamp like it would be in the U.S. Pacific Time zone.

All the available TimeZone from java.util.TimeZone  are listed below for your convenience:

see also References