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

Bookkeepers, project managers, HR departments and more use the Excel Date & Time functions WEEKNUM, ISOWEEKNUM, WORKDAY, WORKDAY.INTL to calculate time. Here's how.

If you're planning to have employees log their own time in spreadsheets and submit them as timesheets with a built-in time calculator in Excel, using separate spreadsheets may be the easiest solution.

I've compiled a list of a dozen Excel tricks that will help any CPA become more efficient and effective.

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.