Add or subtract two times (e.g. 2h 30m + 1h 45m), or convert a duration to total minutes/seconds.

Enter hours, minutes, and optionally seconds in separate fields or as a single duration.

If subtraction gives a negative duration, the result is shown as negative (e.g. -30 minutes).

Online Time Calculator

Add or subtract time (hours, minutes, seconds) and convert between time formats. Client-side only.

Operation

Time 1 (h)

(m)

(s)

Time 2 (h)

(m)

(s)

Frequently Asked Questions

What can I do?: Add or subtract two times (e.g. 2h 30m + 1h 45m), or convert a duration to total minutes/seconds.
Format for input?: Enter hours, minutes, and optionally seconds in separate fields or as a single duration.
Negative result?: If subtraction gives a negative duration, the result is shown as negative (e.g. -30 minutes).

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