ldtBegin = DATETIME(YEAR(mH_BDate),MONTH(mH_BDate),DAY(mH_BDate),mBeg_Hr,mBeg_Min,0) ldtEnd = DATETIME(YEAR(mH_EDate),MONTH(mH_EDate),DAY(mH_EDate),mEnd_Hr,mEnd_Min,0) lnElapsedSeconds = ldtEnd - ldtBegin *Convert to minutes lnElapsedMinutes = INT(lnElapsedSeconds / 60)And as I traced it, here are the results....