java.lang.Object | +----java.util.TimeZone | +----java.util.SimpleTimeZone
public class SimpleTimeZone
extends TimeZone
SimpleTimeZone is a concrete subclass of TimeZone that represents a time zone for use with a Gregorian calendar. This simple class does not handle historical changes, and has limited rules.
Use a negative value for dayOfWeekInMonth to indicate that SimpleTimeZone should count from the end of the month backwards. For example, Daylight Savings Time ends at the last (dayOfWeekInMonth = -1) Sunday in October, at 2 AM in standard time.