Time Calculator

How it works

1. Enter the hours, minutes, and seconds for the first duration (always added).
2. Add more rows with the 'Add duration' or 'Subtract duration' button as needed.
3. In each additional row, you can change the sign (+/-) by tapping the button on the left.
4. The total recalculates automatically, showing hours, minutes, and seconds with correct carrying.
5. If the result is negative (you subtracted more time than you added), it's clearly shown with a negative sign.

Use cases

• Adding up hours worked across multiple shifts or tasks in a day.
• Calculating the total duration of a list of videos, songs, or clips.
• Subtracting breaks or pauses from a workday to get net time.
• Calculating delivery or production times by adding up different stages of a process.

Frequently asked questions