WIN-J TOOLS
Time duration calculator
Add or subtract multiple durations and see total minutes and seconds.
Free · No installation
Input files and content are processed in your browser.
How to use
- Add or subtract multiple durations and see total minutes and seconds.
- Adjust the settings and generate the result.
- Review the result, then copy or download it.
Example
01:30 + 00:45 - 00:15 = 2:00:00, or 120 minutes.
Method and limitations
Two fields mean hours:minutes; three mean hours:minutes:seconds. Prefix a duration with - to subtract it. Hours can exceed 24. This does not calculate calendar shifts or time zones.
Frequently asked questions
Are my inputs stored on the server?
The tool processes files and input locally without uploading or saving them. Reloading the page clears the workspace.
What should I check before using the result?
Two fields mean hours:minutes; three mean hours:minutes:seconds. Prefix a duration with - to subtract it. Hours can exceed 24. This does not calculate calendar shifts or time zones.