>>FUNCTION FourthFridayOfMonth(tnYear, tnMonth) >>LOCAL lnDOW >>lnDOW = DOW(DATE(tnYear, tnMonth, 01), 7) >>RETURN DATE(tnYear, tnMonth, 7 - lnDow + 1 + 3*7) >> >>* or one-liner >>FUNCTION FourthFridayOfMonth(tnYear, tnMonth) >>RETURN DATE(tnYear, tnMonth, 7 - DOW(DATE(tnYear, tnMonth, 01), 7) + 1 + 3*7) >>