The TimeZone class represents a time zone; it is used with the Calendar and DateFormat classes.
As an abstract class, TimeZone cannot be directly instantiated. Instead, you should call the static getDefault() method to obtain a TimeZone object that represents the time zone inherited from the host operating system. Or, you should call getTimeZone() (also static), passing the name of the desired zone. You can obtain a list of the supported time zone names by calling the static getAvailableIDs() method.
Once you have a TimeZone object, you can call inDaylightTime() to determine whether, for a given Date, daylight savings time is in effect for that time zone. Call getID() to obtain the name of the time zone, and call getOffset() for a given date to determine the number of milliseconds to add to GMT to convert to the time zone.
public abstract class TimeZone extends Object implements Serializable, Cloneable { // Default Constructor: public TimeZone() // Class Methods public static synchronized String[] getAvailableIDs(int rawOffset); public static synchronized String[] getAvailableIDs(); public static synchronized TimeZone getDefault(); public static synchronized TimeZone getTimeZone(String ID); public static synchronized void setDefault(TimeZone zone); // Public Instance Methods public Object clone(); // Overrides Object public String getID(); public abstract int getOffset(int era, int year, int month, int day, int dayOfWeek, int milliseconds); public abstract int getRawOffset(); public abstract boolean inDaylightTime(Date date); public void setID(String ID); public abstract void setRawOffset(int offsetMillis); public abstract boolean useDaylightTime(); }
SimpleTimeZone
Calendar(), Calendar.getInstance(), Calendar.setTimeZone(), DateFormat.setTimeZone(), GregorianCalendar(), TimeZone.setDefault()
Calendar.getTimeZone(), DateFormat.getTimeZone(), TimeZone.getDefault(), TimeZone.getTimeZone()