// DST update detection, Andrew Daviel, TRIUMF, March 2007

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

public class j3timex2  {

  public static void main(String [] args) {
    Calendar c = Calendar.getInstance();

    System.out.println("Java Version "+System.getProperty("java.version")) ;
    System.out.println ( "Current time: " +   c.getTime () ) ;                                                                                                  
    int off = c.get (Calendar.DST_OFFSET ) / (60 * 1000) ;
//    System.out.println ("DST offset (minutes) today: " + off) ;

    TimeZone tz = c.getTimeZone() ;
    System.out.println ("Current Timezone: " + tz.getDisplayName()) ;
                                                                                                  
    c.set(2007,2,1) ;
    System.out.println ( c.getTime () ) ;                                                                                                  
    c.set(2007,2,15) ;
    System.out.println ( c.getTime () ) ;                                                                                                  
    c.set(2007,3,25) ;
    System.out.println ( c.getTime () ) ;                                                                                                  
    c.set(2007,2,15) ;
    off = c.get (Calendar.DST_OFFSET ) / (60 * 1000) ;
    System.out.println ("DST Offset (minutes) on March 15; expect 60: " + off) ;
  }
}