Hours, Minutes and Seconds Calculator

Add and convert hours, minutes and seconds

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This page adds up any amount of hours, minutes and seconds.

It can convert seconds to minutes, seconds to hours, hours to minutes, or virtually anything else. You can put any numbers in the boxes, even decimals and negative numbers. To see how it works, give it a try!

This can be useful to add up the amount of time you've spent doing something, like a log book for example.

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