java.lang.Object | +----java.util.TimeZone
public abstract class TimeZone
extends Object
implements Serializable, Cloneable
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 Pacific Standard Time zone is "PST". So, you can get a PST TimeZone object with:
TimeZone tz = TimeZone.getTimeZone("PST");
You can use getAvailableIDs method to iterate through
all the supported time zone IDs. You can then choose a
supported ID to get a favorite TimeZone.