Time Card Calculator
Enter clock-in, clock-out, and break times for each day. Get total hours worked, overtime, and pay for the week.
How the time card calculator works
Three steps. No account needed.
Enter your times
Type clock-in and clock-out for each day you worked. Add break time in minutes. Works with any time format.
Get your totals
See hours per day and total for the week. Overtime is calculated automatically based on your threshold (40h/week or 8h/day).
Copy or save as PDF
Copy your time card to clipboard or get it as a PDF. Your entries and settings are saved in your browser for next time.
| Day | Clock In | Clock Out | Break (min) | Hours |
|---|---|---|---|---|
| Monday | — | |||
| Tuesday | — | |||
| Wednesday | — | |||
| Thursday | — | |||
| Friday | — | |||
| Saturday | — | |||
| Sunday | — |
Frequently asked questions
Common questions about time cards, hours calculation, and overtime.
How to Calculate Hours Worked
To calculate hours worked from a time card, subtract the clock-in time from the clock-out time, then subtract any unpaid break time. The formula is:
Hours worked = Clock-out time - Clock-in time - Break time
For example, if an employee clocks in at 9:00 AM, takes a 30-minute lunch break, and clocks out at 5:30 PM, they worked 8 hours: 8.5 hours on the clock minus 0.5 hours of break time.
Time Card Rounding Rules
Many employers round time card entries to the nearest 5, 6, or 15 minutes. Under US federal law (FLSA), rounding is legal as long as it averages out fairly over time. The most common method is the 7-minute rule: round down for 1-7 minutes, round up for 8-15 minutes.
This calculator uses exact times without rounding, giving you the most accurate picture of actual hours worked. If your payroll system rounds, compare the rounded totals against the actuals to ensure rounding isn't systematically shorting employees.
Weekly vs. Daily Overtime
The US federal standard counts overtime after 40 hours per week. But some states have stricter rules:
- California: overtime after 8 hours/day AND after 40 hours/week. Double time after 12 hours/day.
- Alaska, Nevada, Colorado: daily overtime after 8 hours in certain industries.
- Most other states: follow the federal 40-hour weekly threshold only.
This calculator supports both weekly and daily overtime thresholds. Enable daily overtime in the settings if your state requires it. To see the cost impact, use our overtime cost calculator.
Converting Time Card Hours to Payroll
Most payroll systems need hours in decimal format, not hours and minutes. The conversion:
- 15 minutes = 0.25 hours
- 30 minutes = 0.50 hours
- 45 minutes = 0.75 hours
This calculator shows both formats: hours/minutes for readability and decimal hours for payroll. Enter your hourly rate to see gross pay calculated automatically.
Common Time Card Mistakes
- Forgetting to deduct breaks. Unpaid breaks must be subtracted. A 30-minute lunch over 5 days is 2.5 hours per week that shouldn't be on the payroll.
- Mixing 12-hour and 24-hour formats. Is "1:00" 1 AM or 1 PM? This calculator accepts both formats to avoid ambiguity.
- Not tracking overnight shifts. If someone clocks in at 10 PM and out at 6 AM, that's 8 hours across two calendar days. This calculator handles overnight shifts correctly.
- Manual math errors. Even simple subtraction gets messy with time. 5:45 PM minus 8:15 AM isn't intuitive. That's why calculators exist.
Still tracking hours by hand?
Turnozo replaces time cards with one-tap clock in from your phone. GPS-verified, automatic timesheets, no paper. Your team clocks in, you get the hours.