Time Calculator — Add and Subtract Hours
Built for timesheets and durations: combine several entries, take one away from another, and read the same result in the unit the form asks for.
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Nothing you enter here is sent anywhere. There is no file and no request to our server - the work is done in your browser and disappears when you close the page.
How It Works
- Enter — Fill in the values the tool asks for.
- Run — Press the button; an empty field is reported by name rather than read as zero.
- Read — The answer comes with the working behind it, so you can check the figure.
- Take it — Copy the result, or download it where the tool offers that.
Frequently Asked Questions
How do I enter the time?
As H:MM or HH:MM:SS per component. Hours and minutes can exceed their normal ranges (for example 90 minutes), and the result is normalised for you.