Time Calculator

About this tool

Add, subtract, and calculate durations using hours, minutes, and seconds, so you can work with time values quickly and accurately. Enter time values and choose an operation to get an instant result, or calculate the total duration between two times. Useful for tallying work hours and timesheets, planning schedules and travel time, timing tasks and workouts, and solving time calculations for studies or everyday planning.

How to use

1. 1Enter the first time value
2. 2Enter the second time value if needed
3. 3Select the operation (add or subtract)
4. 4Press Calculate to get the result
5. 5Review the result in hours, minutes, and seconds

Pros & Cons

Features

• 100% free to use
• No registration required
• Processes locally in your browser
• Works on all devices

Privacy

Your data is processed entirely in your browser and never sent to our servers. We have no access to your files or data.

Frequently Asked Questions