Time Card Calculator
Type in your clock-in and clock-out times for the week. We add up your hours, subtract your breaks, split out overtime using your state's rules, and work out your gross pay.
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Your time card
Private by design: your entries autosave in this browser only. Nothing is uploaded, ever.
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Worked example
Say you earn $20 an hour in California and work five 10-hour days, Monday to Friday.
- California pays overtime after 8 hours in a day — so each day is 8 regular hours + 2 overtime hours.
- For the week: 40 regular hours ($800) + 10 overtime hours at $30 ($300).
- Gross pay: $1,100.
A calculator that only uses the federal 40-hour rule can underpay you on weeks like this — four 12-hour days at $24 an hour, for example, come to $1,344 under California rules but only $1,248 under the federal rule alone: $96 of overtime the simple rule misses. That is why this site asks for your state.
How it works
- Enter your times. Clock in, clock out and any unpaid break minutes for each day. Night shifts are fine — if you clock out after midnight, we count the shift across the two days.
- Pick your overtime rules. The federal rule pays overtime after 40 hours in a week. States like California, Alaska, Colorado and Nevada add daily rules on top — choose your state and we apply both, without ever paying the same hour twice.
- Read your totals. Every day shows in hours:minutes and in decimal (the format payroll uses), with regular, overtime and double-time hours split out, plus gross pay if you added your rate.
- Keep a copy. Print the time card or download it as a CSV for your records.
The formula
Hours for a day = (clock out − clock in) − unpaid break. Regular pay = regular hours × your rate. Overtime pay = overtime hours × your rate × 1.5. Double-time pay = double-time hours × your rate × 2. Rules follow the US Department of Labor's Fair Labor Standards Act (FLSA) and, where they are stricter, your state labor department's overtime rules.
Frequently asked questions
How do I calculate my work hours?
Enter your clock-in and clock-out time for each day and subtract any unpaid break. This calculator does it for the whole week, shows each day in hours and minutes plus payroll decimal format, and splits regular and overtime hours for you.
How is overtime calculated?
Under federal law (the FLSA), overtime is 1.5 times your normal rate for hours over 40 in a week. Some states add daily rules — California, for example, pays overtime after 8 hours in a single day and double time after 12. Pick your state in the overtime rules box and the calculator applies the right rule automatically.
Can I calculate an overnight shift?
Yes. If your clock-out time is earlier than your clock-in time — for example 10:00 PM in and 6:00 AM out — the calculator treats the shift as crossing midnight and adds the hours up correctly.
Is my time card data saved or uploaded anywhere?
No. Every calculation runs in your own browser. Your entries are stored only on your device so the page remembers them next visit — they are never uploaded to a server.
Last updated: 23 October 2026
Estimates only — not payroll, tax or legal advice. Your employer's official record is what counts.