Calculate the difference between two values in your Microsoft Excel worksheet. Excel provides one general formula that finds the difference between numbers, dates and times.

How to Do Time Intervals in Excel. When calculating time intervals in Excel, you are looking for the time that has passed between two given sets of time. Because Excel converts dates and times ...

A TechRepublic member wrote for advice on calculating the years, months, and days elapsed between two dates. This tutorial explains the solution provided by TechRepublic contributor Jeff Davis.

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.