About ClockHours
ClockHours is a small, independent project by a software developer based in France. The tools are free, with no sign-up and no cookies: everything you enter stays in your browser.
The calculators count hours as clock-out minus clock-in minus unpaid breaks, including across midnight. Overtime and break rules follow the sources below, last reviewed in October 2026.
Results are a help, not legal advice: state law and your contract may differ. Found a mistake? Write to us; the address is at the bottom of every page.