Time duration calculator

Add up durations written like "1d 2h 30m", "45m", "90s".

Durations*

Result

Run the tool to see results here.

About Time duration calculator

Time duration calculator is a free online calculator tool. Add up durations written like "1d 2h 30m", "45m", "90s".

Enter your input, adjust the options (durations) and run it. The result appears right next to the form, is never stored, and you can copy or save it in one click. No account is needed.

How to use Time duration calculator

Type or paste your input into the form.
Choose the options you need: durations.
Press Run, or use Ctrl/⌘ + Enter.
Copy or save the result from the panel on the right.

Time duration calculator FAQ

What does Time duration calculator do?

Add up durations written like "1d 2h 30m", "45m", "90s".

Is Time duration calculator free to use?

Yes. Time duration calculator is free, with no sign-up or account required.

Is my data safe?

Results are never stored. See our privacy policy for details.

What options does Time duration calculator have?

You can set: Durations.

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