public static bool IsSleepTime()
        {
            TimeSpan SleepTimeStart = TimeSpan.Parse(CONSTANT.SLEEP_TIME);
            TimeSpan SleepTimeEnd   = TimeSpan.Parse(CONSTANT.WAKEUP_TIME);
            bool     isSleepTime    = METHOD.TimeBetween(METHOD.DateTimeTZ(), SleepTimeStart, SleepTimeEnd);

            return(isSleepTime);
        }
        private static bool IsDarkTime()
        {
            var  coordinate = new Coordinate(Lat, Lon, DateTime.Now);
            var  sunset     = (DateTime)coordinate.CelestialInfo.SunSet;
            var  sunrise    = (DateTime)coordinate.CelestialInfo.SunRise;
            bool isDarkTime = METHOD.TimeBetween(METHOD.DateTimeTZ().ToUniversalTime(), sunset.TimeOfDay, sunrise.TimeOfDay);

            return(isDarkTime);
        }