About this site

This site does one thing: turn clock times into payroll-ready hours, instantly. The time card calculator and its variants handle breaks, overnight shifts, quarter-hour rounding, and US overtime rules — including California's daily rules — with results in both hours-and-minutes and decimal formats.

We built it around three principles. Fast: pages are static, fonts are self-hosted, scripts are minimal, and everything works the moment it appears. Private: calculations run entirely in your browser; your times are never uploaded. Free: no accounts, no trials — the site is supported by advertising.

The time math is a small, heavily tested library: every overtime branch, rounding mode, and edge case (overnight shifts, DST nights, 7th consecutive workdays) has automated tests. If you spot something wrong, please tell us — accuracy is the whole product.