Ever needed a quick Date formula? In my world I do not need such funky date formulas all the time, only during the occasional Report week of the year. With that said though, I know others run into this need frequently. I found this while perusing one of my favorite sites, enjoy as there is very good detail and sample code on how to achieve just what you need.
(Link to Database Journal)
Calculating Days of the Week and Accounting Months 5-4-4