Time Calculator
Add or subtract two lengths of time. Enter each duration in hours, minutes and seconds, choose add or subtract, and the calculator shows the combined time along with the totals in hours and in minutes.
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Result
4h 15m 30s
Total hours4.2583
Total minutes255.5
How it works
Each duration is converted to seconds, the two are added or subtracted, and the result is converted back into hours, minutes and seconds. Subtraction can produce a negative result, which is shown with a minus sign.
Frequently asked questions
Can I subtract a longer time from a shorter one?
Yes. The result is shown as a negative duration so you can see the difference either way.
Does it handle seconds?
Yes. You can enter hours, minutes and seconds, and the totals account for all three.
How do I add up more than two durations?
Add the first two, then use the result as one of the inputs for the next addition.