Time calculator
Add or subtract two lengths of time in days, hours, minutes and seconds.
About this calculator
Enter two durations and choose add or subtract. The answer is shown in days, hours, minutes and seconds, and also as total hours, minutes and seconds.
Use it for adding up video lengths, shifts or journey times.
Common questions
What if the answer is negative?
A minus sign shows the second time was longer than the first.
Can I add more than two?
Add two, then use the result as the first time for the next.
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