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Time Calculator
Add or subtract two durations in hours, minutes and seconds. A simple time calculator that shows the result as HH:MM:SS and as total minutes and seconds.
Duration A
Duration B
About Time Calculator
Enter two durations in hours, minutes and seconds, choose whether to add or subtract them, and see the result instantly. The answer is shown as a normalised HH:MM:SS value as well as the equivalent total in minutes and in seconds — handy for billing, cooking, editing and any task that involves combining lengths of time.