Date & Time
Time Duration Calculator
Add or subtract two time durations. Get result in hours, minutes, and seconds.
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Add or subtract multiple time values (hours, minutes, seconds) to get a total duration. Perfect for calculating work hours, video editing durations, travel times, and any situation where you need to sum or difference time intervals.
Features
Add Time
Sum multiple time values: 1:30 + 2:45 = 4:15.
Subtract Time
Find the difference between two time values.
Multiple Entries
Add as many time entries as needed.
Instant Totals
Running total updates as you add entries.
How to Use
- Enter each time value (H:MM:SS or HH:MM).
- Add more time entries with the + button.
- The total duration appears at the bottom.
FAQ
Can it handle durations over 24 hours?▾
Yes — the calculator handles multi-day durations correctly (e.g., 27:30:00 for 27 hours and 30 minutes).
Can I calculate time between two clock times?▾
Yes — enter the start time and end time and the calculator will give you the duration.
Common Uses
- Totaling work hours across multiple days.
- Calculating video or podcast total runtime.
- Adding up travel segments for a multi-leg journey.
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