Time Duration Calculator
Last updated: June 9, 2026Hours and minutes between two times.
Time Duration Calculator is a free online calculator to hours and minutes between two times. It runs entirely in your browser, so your files never leave your device — nothing is uploaded. There's no sign-up, no watermark, and it works on any modern browser on desktop or mobile.
How to use Time Duration Calculator
The Time Duration Calculator works out the hours and minutes between a start and end time, handling overnight shifts automatically. It's perfect for timesheets, work hours and shift planning. Free and runs in your browser.
Read the full guide: Time Duration Calculator: Hours Between Two Times
- 1Enter the start time.
- 2Enter the end time.
- 3Read the duration in hours and minutes.
Overnight aware
If the end is earlier than the start, it counts to the next day.
Timesheet-ready
Get hours, minutes and total minutes for pay and planning.
Free & private
Runs on your device with no sign-up.
Calculating overnight shift hours
Working an 11pm to 7am shift makes the math awkward because the clock crosses midnight. Enter 23:00 as the start and 07:00 as the end, and the calculator treats the earlier end time as the next day, returning 8h 00m. It's built for night-shift workers, nurses and security staff who need accurate overnight totals for their timesheet without manually adding 24 hours.
Hours worked for a timesheet
If you clocked in at 09:00 and out at 17:30, you need the exact paid duration before logging it. Type both times and you get 8h 30m plus 510 total minutes, so you can record it however your timesheet expects. Useful for hourly employees, freelancers billing by time and contractors who must convert clock-in and clock-out times into hours for payroll or invoices.
Total minutes between two times
Some tasks need raw minutes rather than an hours-and-minutes split, such as logging a workout, a study block or a meeting length for a tracker. Alongside the duration, the tool shows the total minutes for any two times you enter, like 135 minutes for 14:00 to 16:15. That saves you multiplying hours by 60 in your head and avoids simple arithmetic slips.
Time Duration Calculator — frequently asked questions
How do I calculate hours between two times?
Enter the start and end times and the tool shows the duration in hours and minutes, plus the total minutes.
Does it handle overnight shifts?
Yes — if the end time is earlier than the start, it's treated as the following day.
Is it free?
Yes, completely free.
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