Time Calculator
Add or subtract two durations written as 1:30:15, 2h 15m or 90m, and see the total in several forms.
Loading the tool
How to use Time Calculator
- Enter the first duration.
- Choose add or subtract.
- Enter the second duration.
Privacy and limits
This tool runs in your browser. What you type is processed on your device and is not sent to our server.
Questions
- Is Time Calculator free to use?
- Yes. You do not need an account and there is nothing to pay.
- Does it work offline?
- Once the page has loaded, the tool does its work on your device. Some browsers need a connection only to load the page itself.