About the Work Hours Calculator
Hours worked between a start and end time minus unpaid breaks — handles overnight shifts — with decimal hours and pay.
Also known as: hours worked calculator, working hours calculator, shift hours, hours between times, time card hours, shift-duration.
How to use this calculator
- Enter start time, end time, unpaid break, hourly rate (optional).
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
Hours = end − start − break (add 24 h if overnight)
Worked example
Using the values pre-filled in the calculator above:
- Start time: 09:00
- End time: 17:30
- Unpaid break = 30 min
- Hourly rate (optional) = 0
the calculator returns:
- Hours worked: 8 h 0 min
- Decimal hours: 8