How to Calculate Time Card Hours to Payroll. Time card calculations for payroll must be accurate, as employee pay depends on the results. Correct calculation of the total hours on a time card will ...

Military time worldwide is read on a 24-hour clock, according to the Marine Military Academy. The numbers are marked as ranging from 0100 to 2400 hours.

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.