I have a production schedule that show I need to run the Parent part at 23:32 hrs (Time Format Only). I have a subassembly part that needs to be supplied to Assembly but takes 5.4 hours to produce and ship. Trying to create a 5.4 hour leadtime for the Sub Assembly Schedule. Need to deduct 5.4 hours from 23:32....In Excel I'm Using =B3-TIME(0,N3,0). But the problem is NO DATE for changes falling into the next day. Want to use access and ODBC the master schedule.