Calculating a timesheet with a lunch break is a two-step process: find gross hours between clock-in and clock-out, then subtract any unpaid break time. The result is the net compensable hours you multiply by your pay rate.
To calculate a timesheet with lunch breaks, subtract your clock-out time from your clock-in time to get gross hours, then subtract the duration of any unpaid meal break. A shift from 9:00 AM to 5:00 PM with a 30-minute unpaid lunch equals 7.5 net hours. The calculator below does that subtraction for a full workweek, and lets you copy a link to it or export it as a CSV.
Gross hours minus lunch minutes, per weekday.
Net hours = (clock-out minus clock-in) minus unpaid break time. Convert everything to 24-hour format first, then work in minutes or decimals; mixing clock notation with decimal notation mid-calculation is where most manual timesheets go wrong.
| In | Out | Lunch break | Gross hours | Net hours |
|---|---|---|---|---|
| 8:00 | 17:00 | 30 min | 9.00 | 8.50 |
| 9:00 | 17:00 | 30 min | 8.00 | 7.50 |
| 7:30 | 16:00 | 45 min | 8.50 | 7.75 |
| 8:00 | 18:00 | 60 min | 10.00 | 9.00 |
| 6:00 | 14:30 | 30 min | 8.50 | 8.00 |
Under the Fair Labor Standards Act (FLSA), short rest breaks of 5 to 20 minutes must be paid because they primarily benefit the employer. A genuine meal break of 30 minutes or longer can be unpaid, but only if the employee is completely relieved of all duties for the entire break. If a worker is asked to answer phones or monitor something during lunch, that break must be paid.
Rather than adjusting your clock-out time to account for a break, record the true clock-in and clock-out times and enter break time as a separate deduction. This keeps your records transparent and accurate if a time dispute arises. Most digital time cards and payroll tools have a dedicated break field for exactly this reason.
Add all unpaid break minutes together before subtracting. If a shift has a 15-minute morning break (paid) and a 30-minute lunch (unpaid), only subtract the 30-minute lunch. Two unpaid breaks of 15 minutes each would be 30 minutes total to deduct. Always confirm which breaks your employer designates as paid before making deductions.
The calculator sums each weekday's net hours into the weekly total shown above, then splits that total at the 40-hour federal threshold into regular and overtime hours. Change any single day's clock times or lunch minutes and the whole week recalculates immediately. For a full seven-day card, including weekend shifts, use the time card calculator instead; this tool is scoped to the Monday-through-Friday lunch-break question specifically.
Federal law (FLSA) sets baseline rules, but many states impose additional break requirements. Examples:
State law can change. Check your state labor agency's website or consult a qualified employment professional for current requirements. This article provides general educational information only and is not legal advice.
If an employee skips a scheduled unpaid lunch and works straight through the shift, those break minutes become compensable time. An employee who works 9:00 to 17:00 without taking a 30-minute lunch worked 8 full hours, not 7.5. Employers should track this carefully, because failing to pay for worked time is a wage violation under the FLSA. Employees should note on their timesheet if they worked through a scheduled break so the time record reflects reality. If you skip lunch and your pay stub shows a break deduction anyway, raise the discrepancy with your payroll department with your actual time records as documentation.
Some payroll systems automatically deduct a fixed break (often 30 minutes) from every shift over a certain length, regardless of whether the employee actually took the break. This is called an automatic deduction policy. Under the FLSA, automatic deductions are permissible only if the employer monitors that employees actually take the break and removes the deduction whenever a break is missed or interrupted. If your employer uses automatic deductions and you regularly work through lunch without the deduction being reversed, that may result in underpayment. Keep your own records of actual break times taken each day. Use the time card calculator to enter your actual hours including the correct break deduction, then compare the result to your pay stub. See also how to calculate total hours worked to understand the full timesheet methodology.
Deduction math is easy when every day has the same 30-minute lunch. It stops being easy the week you take a client to a long lunch on Tuesday, grab 45 minutes on Wednesday because the morning ran over, and skip lunch entirely on a short Friday. Here is that week at $16.50 an hour:
| Day | In | Out | Lunch | Net hours |
|---|---|---|---|---|
| Monday | 8:00 | 16:30 | 30 min | 8.00 |
| Tuesday | 8:00 | 17:00 | 60 min | 8.00 |
| Wednesday | 8:00 | 16:00 | 45 min | 7.25 |
| Thursday | 8:30 | 17:00 | 30 min | 8.00 |
| Friday | 8:00 | 14:00 | none | 6.00 |
| Total | 37.25 |
Gross pay is 37.25 times $16.50, or $614.63, all at the regular rate since the week stays under 40. Notice that Monday, Tuesday and Thursday all net exactly 8.00 hours despite three different shift shapes. That is the whole argument for recording lunch as its own field instead of eyeballing it: the clock times can wander all week and the deduction still lands where it should.
Federal guidance draws two clean lines and leaves a smudge between them. Breaks of 5 to 20 minutes are paid time, full stop. A bona fide meal period, which can be unpaid, "ordinarily" runs 30 minutes or more, in the words of DOL Fact Sheet 22 and 29 CFR 785.19. A 25-minute lunch sits in neither category by default. The regulation allows a shorter meal period to qualify as unpaid only under special conditions, so in practice an employer deducting 25-minute lunches is standing on thin ground, and one deducting 15-minute breaks is simply wrong. If your timesheet shows unpaid deductions shorter than half an hour, that is worth a question to payroll before it is worth anything else.
The unpaid meal period test is not about food. It is about duty. An employee must be completely relieved of work for the break to be deductible; someone eating a sandwich while covering the front desk phone is working, and every one of those minutes belongs on the paid side of the ledger. The common failure mode is not a boss ordering someone to work through lunch, it is a culture where the phone is nobody's job for 30 minutes so it quietly becomes the lunch-eater's. California formalizes a narrow exception, the written on-duty meal period agreement, for jobs where the nature of the work genuinely prevents relief (a lone overnight clerk, for instance), and even then the time is paid. On-duty and unpaid is not a lawful combination anywhere.
A worker who clocks a lunch generates four punches a day instead of two, which doubles the number of events a rounding policy can touch. Quarter-hour rounding that is harmless on a clock-in can turn a 33-minute lunch into a 45-minute deduction, and do it again tomorrow. Rounding is lawful under 29 CFR 785.48 only when it averages out neutrally over time, so a lunch that always rounds longer, never shorter, fails the test even though each individual instance looks trivial. If you suspect this pattern, the arithmetic is your friend: 12 extra deducted minutes a day is an hour a week, and at $16.50 that is roughly $858 a year walking out of your check in slices too small to notice.
The cheap defense is a two-week log. Write down your actual lunch punches, to the minute, for ten working days, then compare that list against the deductions on the matching pay stub. Ten days is enough to show whether the rounding drifts both ways or only one, and a dated log in your own handwriting carries more weight in a payroll conversation than a recollection ever will.
The time card calculator covers every day of the week, not just Monday through Friday.
Yes. The Copy link button encodes this week's clock times and lunch breaks into the page URL itself, so opening that link reproduces the same week without retyping anything.
Yes, the Export CSV button downloads a file with one row per weekday: clock-in, clock-out, lunch minutes, gross hours and net hours, ready to open in a spreadsheet.
Lunch-break deductions are most commonly a weekday-shift question. If your schedule includes weekend shifts with breaks, the time card calculator handles all seven days.
The weekly net total is shown alongside a regular/overtime split at the 40-hour federal threshold, but this tool doesn't apply any state daily-overtime rules on top of that; check your own state if long single days apply.
No, it only subtracts whatever lunch minutes you enter per day. Whether a second break is legally required depends on your state and shift length; see the state table further down this page and enter both breaks' combined minutes if two unpaid breaks apply.
Paid, under federal law. Breaks of 5 to 20 minutes count as compensable work time regardless of what they are called on the schedule. Only a bona fide meal period, ordinarily 30 minutes or more with the employee fully relieved of duty, can be deducted as unpaid.
Under federal rules, generally yes: requiring you to remain on the premises does not by itself make a meal period compensable, as long as you are completely relieved of duties. Some states are stricter, so check your state labor agency if you are confined to a work station rather than just the building.
An interrupted meal period is generally paid time, because you were not fully relieved of duty. Record the actual minutes of uninterrupted break you got; if that lands under 30, most employers should treat the whole period as paid. Note the interruption on your timesheet the same day.
If you are salaried and exempt, no; your pay does not vary with hours. But salaried does not automatically mean exempt. A salaried nonexempt employee is still owed overtime, so their hours, including unpaid lunches, still need accurate tracking.
Jessica Martinez spent six years as a credit analyst before deciding the spreadsheets had better stories than the meetings. She writes about pay, payroll math, and the workplace fine print everyone scrolls past, from overtime rules to the timesheet that rounds against you.