How to Calculate the Total Hours Formula in Excel. As a spreadsheet software program, Microsoft Excel has many useful features for a small business's productivity.

Easy way to calculate time difference in Excel using simple logic. A simple formula to calculate difference between two dates & times in Excel.

Excel has over 475 formulas in its Functions Library, but we've selected the most popular, from date and time functions to mathematics and simple data manipulation.

Type the formula in cell K2 to calculate overtime hours for the week. This formula will test to see if the total hours worked that week, minus the total double time hours, is greater than 40.

Fortunately, Excel offers a built-in function, DATEDIF, which makes it easy to calculate elapsed calendar time.

This Technology Workshop illustrates how to leverage a number of functions to perform calculations in Excel involving the time value of money.