# Duration Calculator

> Add and subtract durations like 1h 30m or 01:20:15, and find the time between two clock times.

- URL: https://prismkit.hippodev.app/en/calculators/duration-calculator
- Category: Calculators
- Runs: client-side, no upload

This is an interactive tool — open https://prismkit.hippodev.app/en/calculators/duration-calculator to use it.