We show you how to use Excel to count days between two dates using the DAYS, DATEDIF, NETWORKDAYS, and TODAY functions, and Subtraction.

You should have experience with Excel before trying to use formulas to calculate what day of the week the 15th of a given month is, and you have several options to do this.

To calculate in Excel how many hours someone has worked, you subtract the start time from the end time — the difference is the hours worked. But if the work shift spans midnight, simple ...