Workday Clock Calculator
Calculate net work hours from clock-in / clock-out
Use this when you need a fast, accurate result — no sign-up, works entirely in your browser.
Net work hours—
Gross hours—
Productive % of 8h day—
How to Use
- Enter your details into the fields above.
- Click the calculate button to get your result instantly.
- Use the clear button to start a new calculation.
Example
- 09:00–18:00 with 60-min break → Net work time 8h 0m (480 minutes)
- 08:30–17:30 with 45 min break → 9.00 h gross, 8.25 h net (103.1% of a standard 8-h day)
Formula
Net = (end − start) − break. Time strings must be 24-hour HH:MM. Lunch is the most common break; remove it for "at desk" calculations.
About Workday Clock Calculator
Calculate net work hours from clock-in / clock-out. This free online tool gives you fast, accurate results without registration or downloads.
Everything runs locally in your browser, so your data is never uploaded or stored — privacy first.
Frequently Asked Questions
Is this tool free to use? +
Yes, it is completely free with no registration or download required.
Is my data private? +
Yes. Everything is processed locally in your browser. Nothing is uploaded or stored on our servers.
Does it work on mobile? +
Yes, it works on any device — phone, tablet, or desktop.