Came across this formula,
Can this formula be converted to use DATEIFF instead of Networkdays.
Networkdays days doesn't work in THIRD PARTY APPLICATION
=ROUND((NETWORKDAYS(A3,B3)*8)-IF(WEEKDAY(A3,2)>=6,0,MIN(MAX(24*(MOD(A3,1)-"9:00"),0),8)) - IF(WEEKDAY(B3,2)>=6,0,MIN(24*MAX(("17:00"-MOD(B3,1)),0),8)),2)