Java tutorial
//package com.java2s; import java.util.Calendar; import java.util.Date; import java.util.TimeZone; public class Main { public static Date toTimeZone(Date date, TimeZone source, TimeZone target) { Calendar cal1 = Calendar.getInstance(source); cal1.setTime(date); int[] dateSplit = splitDate(date); Calendar cal2 = Calendar.getInstance(target); cal2.set(dateSplit[0], dateSplit[1], dateSplit[2], dateSplit[3], dateSplit[4], dateSplit[5]); return cal2.getTime(); } public static int[] splitDate(Calendar calendar) { return new int[] { calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), calendar.get(Calendar.HOUR_OF_DAY), calendar.get(Calendar.MINUTE), calendar.get(Calendar.SECOND) }; } public static int[] splitDate(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); return splitDate(calendar); } }