Good Day... I'm having a problem figuring out how to add time to a date and exclude non-working hours/holidays/and weekends. If I use this formula "MOD(D26,1)-MOD(B26,1)+(NETWORKDAYS(B26,D26)-1)*3/8" for example if my inputs are 03/18/2005 2:00 PM and 03/21/2005 9:00 AM it returns a time of 4 hours, which is correct. My problem is that I need my inputs to be the first date and the number of hours and a formula that returns the later date. Any help would be appreciated....