Column A has the date and time displayed: Thu, 06/14/07, 11:15
Column B needs to calculate: "If (A=Mon to Fri from 7:00 to 20:00, Sat from
7:00 to 15:00, Sun from 7:00 to 16:00 Then Display in Column B "On Time")
If False then Display in Column B "Closure Time")

I don't even know where to start with this one. Any assistance would
certainly be appreciated. Thanks in advance for your help.