Time calculator

Add or subtract hours, minutes and seconds. One time per line.

0:00:00

Questions

How do I add times together?

Type each time on its own line as h:mm:ss, h:mm, a number of minutes, or like “1h 20m”. The total updates as you type. Start a line with a minus sign to subtract it.

How do I enter just seconds?

Use “45s” or “0:00:45”. A plain number is read as minutes.

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