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Time Duration Calculator

100% Free

Calculate the duration between two times in hours, minutes, and seconds.

100% Secure
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Client-Side

Coming Soon

We're building Time Duration Calculator right now. Drop your email and we'll notify you the moment it's live.

How to use

  1. Enter a start time and an end time (HH:MM:SS format).
  2. Toggle spans midnight if the end time is on the next day.
  3. See the duration in hours, minutes, and seconds.

When to use

Timesheets, shift calculations, meeting duration tracking, or any time you need the elapsed time between two clock readings.

Frequently Asked Questions

Does it handle overnight durations (e.g. 11pm to 2am)?
Yes — toggle 'spans midnight' and the calculator handles next-day end times correctly.
Can I add multiple time segments?
Yes — use multi-segment mode to add up several time ranges (useful for timesheet calculations).
Is anything sent to a server?
No. All calculations run in your browser.

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