C# DateTime计算隔天时间

C# 计算隔天时间
从当天23:00 到 第二天凌晨 1:00

                                 
                                 String  Start="23:00";
                                 String end="1:00";
                                  DateTime StartTime = Convert.ToDateTime("2019-01-01 " + time[0]);
                                  DateTime   EndTime = Convert.ToDateTime(time[1]);
                                    if (StartTime.Hour > EndTime.Hour)
                                    {
                                        EndTime = Convert.ToDateTime("2019-01-02 " + time[1]);
                                    }
                                    else
                                    {
                                        EndTime = Convert.ToDateTime("2019-01-01 "+time[1]);
                                    }
                                    TimeSpan total = EndTime - StartTime;