public static void Main()
DateTime timeNow = TimeZoneInfo.ConvertTimeBySystemTimeZoneId(DateTime.UtcNow, "China Standard Time");
var remainMin = new TimeSpan(1,0,0,0).Subtract(timeNow.TimeOfDay).TotalMinutes;
Console.WriteLine("Date Time Today: {0}", timeNow);
Console.WriteLine("Time Today: {0} Hours {1} Minutes", timeNow.Hour, timeNow.Minute);
Console.WriteLine("Remaining Minutes: {0} ({1})", remainMin, Math.Truncate(remainMin));