Time calculator — add and subtract durations
Quickly add or subtract hours, minutes, and seconds. Useful for scheduling, payroll estimates, recipe scaling, workout planning, and any time you need to combine two durations without doing the math in your head.
Key facts
- Input
- Hours, minutes, seconds
- Operations
- Add or subtract
- Result
- Hours, minutes, seconds
- Sign-up
- None
How it works
- Step 1Enter the first duration
Type hours, minutes, and seconds for your starting time.
- Step 2Choose the operation
Select Add (+) or Subtract (−).
- Step 3Enter the second duration
Type the hours, minutes, and seconds to add or subtract.
- Step 4Read the result
See the total in hours, minutes, and seconds instantly.
Frequently asked questions
Can I add and subtract time?
Yes — enter hours, minutes, and seconds for two durations and choose add or subtract.
Does it handle negative results?
Yes — if you subtract a larger duration from a smaller one, the result is shown as negative.
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