.net 计算当前时间距离今晚00:00:00还有多少分多少秒

            string dateDiff = null;
            DateTime DateTime1 = DateTime.Now;
            DateTime DateTime2 = DateTime.Now.AddDays(1).Date;
            TimeSpan ts1 = new TimeSpan(DateTime1.Ticks);
            TimeSpan ts2 = new TimeSpan(DateTime2.Ticks);
            TimeSpan ts = ts1.Subtract(ts2).Duration();
            dateDiff = ts.Days.ToString() + "天" + ts.Hours.ToString() + "小时" + ts.Minutes.ToString() + "分钟" + ts.Seconds.ToString() + "秒";