当前时间的毫秒到今天24时相差的毫秒

Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR, 11);//不知道这里为什么不是24  奇怪
cal.set(Calendar.SECOND, 59);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.MILLISECOND, 59);
Long End= cal.getTimeInMillis();
Long Now=System.currentTimeMillis();
System.out.println((End-System.currentTimeMillis()));