Calculate time durations easily
Add or subtract multiple time durations and convert between hours, minutes, and seconds.
About This Tool
Time Duration Calculator helps project managers, video editors, developers, and students sum up work logs, track elapsed time, or convert durations into different units.
Key Features
Add multiple time durations
Subtract durations
Result shown in HH:MM:SS
Result also in total seconds and minutes
Simple HH:MM:SS or MM:SS input
How to Use This Tool
- Enter one or more time durations in HH:MM:SS format.
- Choose to add or subtract them.
- View the total in multiple time unit formats.
Why Use This Tool
- Accurately sum up work logs or video clip durations.
- No spreadsheet needed for simple time math.
- Converts result into total seconds, minutes, and hours.
Pro Tips
- Sum up daily work hour logs at the end of the week
- Add video clip durations to calculate total video length
- Convert a result in seconds to hours by dividing by 3600
Frequently Asked Questions
What format should I use for durations?
Enter durations as HH:MM:SS, MM:SS, or just seconds. The tool is flexible.
Can I subtract durations?
Yes, you can mix addition and subtraction in a list of durations.