日历和getTimeInMillis（）。安卓

Calendar cal = Calendar.getInstance();
        cal.add(Calendar.YEAR, mYear); /2011
        cal.add(Calendar.MONTH, mMonth); /04
        cal.add(Calendar.DAY_OF_MONTH, mDay);/13 
        cal.add(Calendar.HOUR, mHour); /11
        cal.add(Calendar.MINUTE, mMinute); /53 
    System.out.println(\"Cal time \"+ cal.getTimeInMillis());
    System.out.println(\"System time \" +System.currentTimeMillis());