Time Card Calculator with Lunch Break
Enter your clock-in and clock-out times for the week, deduct unpaid lunch breaks, and get weekly totals split into regular and overtime hours.
How to use the time card calculator
- Enter the clock-in and clock-out times for each day you worked. Leave a day blank to skip it; blank days add nothing to the week.
- Enter unpaid lunch minutes for each day. A half-hour lunch means 30. If the break is longer than the whole shift, that day counts as zero and the row is flagged.
- Set the overtime threshold in hours per week. The default of 40 matches the weekly limit the FLSA uses for overtime pay.
- Read the weekly totals: hh:mm values for timesheets and reviews, decimal hours for payroll, where minutes are converted by dividing by 60.
The math: a day's worked time is clock-out minus clock-in minus lunch. A clock-out earlier than the clock-in counts as a shift past midnight. Everything above the weekly threshold is overtime.
Frequently asked questions
Does this calculator keep a record of my hours and pay rate?
No. The clock-in and clock-out times, break lengths, and pay rates you enter stay in the browser tab, and the weekly totals are computed there. Nothing is sent to a server, nothing is saved on our side, and nothing is written to your browser's storage, so your payroll details stay private. The site has no accounts and sets no cookies; if an ad is shown, the ad network follows its own policies and never receives your hours or rates.
How is overtime calculated?
Weekly, not daily. Under the Fair Labor Standards Act (29 U.S.C. 207), nonexempt employees earn overtime at 1.5 times their regular rate for hours worked beyond 40 in a single workweek. This calculator splits your week at the threshold you set, and the default is 40 hours.
What are decimal hours and why do payroll systems use them?
Decimal hours express minutes as a fraction of 60. A payroll system multiplies hours by pay rate, so 7 hours 45 minutes becomes 7.75, not 7.45. Divide the minutes by 60 to check any conversion: 30 minutes is 0.5, 15 minutes is 0.25.
Does federal law require a lunch break?
No. The Department of Labor notes that the FLSA does not require meal or rest breaks for most workers, though some state laws do. Short breaks of 5 to 20 minutes generally count as paid work time, while a bona fide meal period of 30 minutes or more may be unpaid, which is the kind this calculator deducts.
How are overnight shifts handled?
If the clock-out time is earlier than the clock-in time, the shift is treated as crossing midnight and the hours after midnight are counted. A shift from 22:00 to 06:00 totals 8 worked hours.
What if my lunch break was longer than the shift?
The day counts as 0 minutes and a warning appears under that row so you can fix the times or the break length. Nothing is deducted from other days.