Time Duration Calculator

Calculate the hours and minutes between two times.

Last updated: 21 Aug 2026

Quick answer

Enter a start and end time and this tool shows the duration in hours and minutes. For example, 09:00 to 17:30 is 8h 30m. If the end time is earlier, it assumes the next day (crossing midnight). Enter your times above.

Start time

End time

Find the duration between two times in hours and minutes — handy for work hours, shifts and study time. Overnight spans (end before start) are handled automatically.

How to calculate time duration

1 Enter the start time.
2 Enter the end time.
3 We show the duration in hours and minutes.

Frequently asked questions

How do I calculate hours between two times?

Subtract the start from the end; this tool converts the result into hours and minutes.

Does it handle overnight shifts?

Yes — if the end time is earlier than the start, it assumes the next day.

Can I use it for work hours?

Yes — enter clock-in and clock-out times to get your shift length.

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