Get the foreign time : TimeZone « Development « Java Tutorial

1. Java Tutorial
2. Development
3. TimeZone

import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.TimeZone;

public class Main {
  public static void main(String[] argv) throws Exception {
    Calendar local = Calendar.getInstance();
    Calendar japanCal = new GregorianCalendar(TimeZone.getTimeZone("Japan"));
    japanCal.setTimeInMillis(local.getTimeInMillis());

    int hour = japanCal.get(Calendar.HOUR); // 3
    int minutes = japanCal.get(Calendar.MINUTE); // 0
    int seconds = japanCal.get(Calendar.SECOND); // 0
    boolean am = japanCal.get(Calendar.AM_PM) == Calendar.AM; // true
  }
}