java.util.Date Optional. Date/time that you want to convert.

String Pattern string that describes the format in which you want the date returned. For pattern-string notation, see the Pattern String Symbols section.

String Optional. Time zone in which you want the output date and time expressed. Specify a time zone code as shown in the Time Zones section, for example, EST for Eastern Standard Time.

If you do not specify timezone, the user's time zone is used, else GMT is used.

String Optional. Locale in which the date is to be expressed. For example, if locale is en (for English), the pattern EEE d MMM yyyy will produce Friday 23 August 2002, and the locale of fr (for French) will produce vendredi 23 août 2002.

String The date/time given by date in the format specified by pattern.