Java tutorial
//package com.java2s; import java.text.SimpleDateFormat; import java.util.TimeZone; public class Main { public static SimpleDateFormat getStartDateTimeInTimezone(String timezone) { SimpleDateFormat format = new SimpleDateFormat("EEEE, MMMM d, h:mm a"); if (timezone == null || timezone.isEmpty()) { format.setTimeZone(TimeZone.getDefault()); } else format.setTimeZone(TimeZone.getTimeZone("GMT+" + timezone)); return format; } }