Time Calculator
Add and subtract time durations.
Add / subtract durations
About this tool
Add or subtract two time durations expressed in hours, minutes and seconds. Perfect for timesheets, cooking, workouts and project planning.
Key Features
- Add or subtract durations
- Hours, minutes & seconds
- Handles negative results
- Instant total in seconds
How to Use
- Enter the first duration.
- Choose add or subtract.
- Enter the second duration.
- Click Calculate.
Benefits
- Total up work hours
- Plan schedules
- Combine lap times
Frequently Asked Questions
Yes — if you subtract a larger duration from a smaller one, the result is shown as a negative time.