Time Card Calculator (Work Hours)
Enter start, end, and unpaid break for each day. Get total hours, the regular/overtime split, and the week’s gross pay.
Times in 24-hour format (e.g. 8.5 = 8:30). Leave a day at 0–0 to skip it.
| Regular hours (up to 40) | — |
| Overtime hours (1.5×) | — |
| Gross pay | — |
How the hours are counted
Daily hours = End time − Start time − Unpaid break
Overtime splits automatically at 40 hours for the week (the US federal FLSA threshold) and pays 1.5×. The default example: four 8-hour days plus a 6.5-hour Friday = 38.5 hours — under the line; add a Saturday shift and the calculator shows the overtime premium instantly.
Decimal time cheat sheet
| Clock | Decimal |
|---|---|
| 8:15 | 8.25 |
| 8:30 | 8.5 |
| 8:45 | 8.75 |
| 17:20 | 17.33 |
Break rules worth knowing (US)
Federal law does not require meal breaks, but when short breaks (5–20 min) are given they must be paid — only genuine meal periods (30+ min, fully relieved of duty) can be unpaid. If you answer emails through lunch, that break is legally work time in most cases. State rules (California especially) add mandatory meal and rest breaks.
Frequently asked questions
How do I calculate hours worked?
End time minus start time minus unpaid breaks, per day, summed for the week. 9:00 to 17:30 with a 30-minute lunch is 8 hours.
How do I convert minutes to decimal hours?
Divide minutes by 60: 15 min = 0.25, 30 min = 0.5, 45 min = 0.75. Payroll systems bill in decimal hours, which is why timesheets use them.
When does overtime start?
Federally at 40 hours in a workweek, paid at 1.5×. Some states add daily overtime — California pays 1.5× after 8 hours in a single day and 2× after 12.
Are lunch breaks paid?
Genuine meal breaks of 30+ minutes where you are fully off duty can be unpaid. Short breaks and any "working lunch" count as paid time under federal rules.
All Salary & Work calculators
Annualized Income · Biweekly Pay · Bonus After-Tax · Commute Cost · Freelance Hourly Rate · Freelance Project Quote · Holiday Pay · Hourly to Salary · Overtime Pay · Pay Raise · Pro Rata Salary · Real Salary · Salary to Hourly · Severance Pay · Take-Home Pay · Two Job Income
Last updated: 2026-07-08