private static List <byte> GetMillisecondsByteArray() { DateTime startTime = new DateTime(2017, 12, 20, 0, 0, 0); DateTime curTime = DateTime.Now; double milliSeconds = ((curTime - startTime).TotalSeconds) * 1000; ulong fixedPointMilliSeconds = (ulong)milliSeconds; //Debug.Log ("Milliseconds from " + startTime + " to now is " + fixedPointMilliSeconds); List <byte> milliSecondByteArray = HeepLanguage.GetByteArrayFromULong(fixedPointMilliSeconds); return(milliSecondByteArray); }