Time Calculator

Add or subtract hours, minutes, and seconds. Free time duration calculator in your browser.

Parameters

Enter the required details below

Enter your parameters and click calculate to see the results here.

Enter Hours.
Enter Minutes.
Enter Seconds.
Click Calculate to see Result Hours, Result Minutes, Result Seconds and Total Seconds.
Check the result. Use Reset if you want to try different numbers.

Enter a starting time and an interval, then add or subtract. Seconds and minutes wrap at 60 so you get a normalized clock-style result.

How do I add minutes to a time?+

Enter hours, minutes, and seconds for the start, then the amount to add, and choose addition.

Is Time Calculator free to use?+

Yes. Time Calculator is free and does not require an account. The calculation runs in your browser.

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