import java.util.Calendar;
import java.util.Date;

/**
 * Created with IntelliJ IDEA.
 * User: aubels
 * Date: 12/12/12
 * Time: 9:54 AM
 * To change this template use File | Settings | File Templates.
 */
public class d12 {
    public static void main(String[] args)
    {
        Calendar calendar = Calendar.getInstance();
        calendar.set(2012,Calendar.DECEMBER,12,0,0,0);
        System.out.println(calendar.getTime().toString());
        calendar.add(Calendar.DATE, 1);
        calendar.add(Calendar.MONTH, 1);
        calendar.add(Calendar.YEAR, 1);
        System.out.println(calendar.getTime().toString());
    }
}


Returns:
Wed Dec 12 00:00:00 EST 2012
Mon Jan 13 00:00:00 EST 2014


See 13/13/13 does exist.