Time Card Calculator
Fill in your clock-in, clock-out, and break times for each day to total your weekly hours. Add an hourly rate for gross pay with overtime over 40 hours.
| Day | Start | End | Break (min) | Hours |
|---|---|---|---|---|
| Mon | 7h 30m | |||
| Tue | 7h 30m | |||
| Wed | 7h 30m | |||
| Thu | 7h 30m | |||
| Fri | 7h 30m | |||
| Sat | 0h 0m | |||
| Sun | 0h 0m |
How to use this calculator
For each day of the workweek, enter your clock-in time, clock-out time, and any unpaid break time in minutes. You can skip days you did not work — leave them blank and they will not affect the total. Once all days are entered, the calculator shows each day's hours and the weekly total in both h:m and decimal hours. Enter an hourly rate to see gross pay, with hours over 40 automatically paid at 1.5× (time-and-a-half).
For overnight shifts, just enter the actual start and end times — if the end time is earlier than the start time, the calculator treats the shift as crossing midnight.
How weekly time cards work
A time card (also called a timesheet) is a record of the hours worked each day during a pay period. For each day:
- Net daily hours = clock-out time − clock-in time − unpaid break time
- Weekly total = sum of all daily net hours
This sounds straightforward, but handling overnight shifts, varying month lengths, and overtime thresholds correctly requires careful arithmetic. The calculator automates all of it.
How overtime is calculated under the FLSA
The federal Fair Labor Standards Act (FLSA) requires that covered, non-exempt employees be paid at least 1.5 times their regular rate for all hours worked beyond 40 in a single workweek. A workweek is a fixed, recurring 7-day period (168 hours); employers set the start day.
The overtime formula this calculator uses:
Regular pay = min(total hours, 40) × hourly rate
Overtime pay = max(total hours − 40, 0) × hourly rate × 1.5
Gross pay = Regular pay + Overtime pay
Important: several states impose additional overtime rules. California requires overtime pay for hours worked beyond 8 in a single day (and double time beyond 12 hours in a day, or beyond 8 hours on a seventh consecutive workday). Alaska and Nevada have daily overtime provisions as well. This calculator applies only the federal weekly 40-hour threshold. If you are in a state with daily overtime, you may be owed more than this tool shows — check your state's Department of Labor website or consult your employer.
Understanding break time deductions
Not all time away from active work should be deducted. Under the FLSA:
- Short rest breaks (5–20 minutes) are generally considered compensable working time and should NOT be deducted from hours worked.
- Bona fide meal periods (typically 30+ minutes) during which the employee is completely relieved of duties are not compensable and should be deducted. Enter these in the break column.
- Shorter meal breaks where the employee must remain on call or cannot leave the premises may be compensable — consult your employer's policy and applicable regulations.
Worked examples
Standard 40-hour week — no overtime
Five days of 9:00 AM–5:00 PM with a 30-minute unpaid lunch:
- Daily hours: (5:00 PM − 9:00 AM − 30 min) = 7.5 hours per day
- Weekly total: 7.5 × 5 = 37.5 hours — under 40, so no overtime
- At $20/hour: 37.5 × $20 = $750.00 gross
Week with overtime
Same schedule but you worked until 7:00 PM on Tuesday and Wednesday (no extra breaks):
- Monday, Thursday, Friday: 7.5 hours each = 22.5 hours
- Tuesday, Wednesday: (7:00 PM − 9:00 AM − 30 min) = 9.5 hours each = 19 hours
- Weekly total: 22.5 + 19 = 41.5 hours
- Regular pay: 40 × $20 = $800.00
- Overtime pay: 1.5 OT hrs × ($20 × 1.5) = 1.5 × $30 = $45.00
- Gross pay: $800 + $45 = $845.00
Overnight shift
You worked 11:00 PM to 7:00 AM (no break). The end time (7:00 AM = 7:00) is before the start time (11:00 PM = 23:00), so the calculator adds 24 hours to the end: 7:00 + 24:00 = 31:00. Net minutes: (31:00 − 23:00) = 8 hours = 8.0 hours.
How to interpret your result
The gross pay figure is a pre-tax estimate. Your actual take-home pay will be lower after federal and state income tax withholding, Social Security and Medicare (FICA) deductions, and any other withholdings such as health insurance or retirement contributions. Always verify your time and pay against your official pay stub, especially if overtime or irregular hours are involved.
Common mistakes to avoid
- Deducting paid rest breaks. Short breaks (under 20 minutes) are typically compensable — do not include them in the break deduction column.
- Averaging hours across two workweeks. The FLSA calculates overtime per workweek. You cannot combine two 30-hour weeks into a 60-hour "pay period" and avoid overtime — each week is calculated separately.
- Ignoring state daily overtime. If you work in California or another state with daily overtime rules, the federal weekly calculation this tool uses may understate your overtime entitlement.
- Entering AM/PM incorrectly. A common error is entering 12:00 when you mean noon (12:00 PM) vs. midnight (12:00 AM). Confirm AM/PM for all entries, especially near noon and midnight.
- Treating gross pay as net pay. The calculator shows gross pay before all deductions. Do not assume this is what will appear in your bank account.
This calculator applies federal FLSA weekly overtime only. Overtime rules vary by state — for example, daily overtime applies in California. Check your local labor laws and employer policy for the most accurate calculation.
How we calculate this
Daily hours = (clock-out minutes − clock-in minutes − break minutes) ÷ 60, with midnight handling for overnight shifts. Weekly total = sum of all daily hours. Regular pay covers the first 40 hours at the entered rate; overtime pay applies 1.5× the rate to hours beyond 40, following the federal FLSA weekly overtime standard. Gross pay = (min(weekly hours, 40) × rate) + (max(weekly hours − 40, 0) × rate × 1.5). Results are pre-tax estimates; state daily overtime rules are not applied.
Frequently asked questions
How do I calculate a weekly time card?
Enter the clock-in time, clock-out time, and unpaid break minutes for each day you worked. The calculator computes each day's net hours automatically and sums them for the week. You can leave days blank if you did not work that day.
How is overtime calculated?
Under the federal Fair Labor Standards Act (FLSA), non-exempt employees earn at least 1.5× their regular rate for all hours worked beyond 40 in a single workweek. This calculator applies that rule: the first 40 hours are multiplied by your regular hourly rate, and any hours above 40 are multiplied by 1.5× that rate to calculate gross pay.
Do any states have daily overtime rules?
Yes. California, for example, requires overtime pay for hours worked beyond 8 in a single day, and double time for hours beyond 12 in a day, in addition to weekly overtime over 40 hours. Alaska and Nevada also have daily overtime provisions. This calculator applies only the federal weekly 40-hour rule; check your state's labor laws if you think daily overtime may apply.
How do I handle overnight or graveyard shifts?
Enter the start and end times as shown on the clock. If the end time is earlier than the start time — for example, in at 10:00 PM and out at 6:00 AM — the calculator automatically treats the shift as crossing midnight and calculates 8 hours. No special entry is needed.
Should I include my breaks?
Enter only unpaid break time in the break column. Unpaid meal breaks (typically 30 minutes or longer) must be excluded from paid work time. Short rest breaks of 5–20 minutes are generally considered compensable time under the FLSA and should NOT be deducted. Check your employer's policy and your state's rules for specifics.
What is the difference between h:m and decimal hours?
H:m (e.g., 7:30) shows hours and minutes. Decimal hours (e.g., 7.5) express the same duration as a single number. Most payroll systems require decimal hours because they multiply cleanly by an hourly rate. 30 minutes = 0.5 decimal hours, 15 minutes = 0.25, 45 minutes = 0.75.
How do I calculate gross pay with overtime?
Enter your regular hourly rate in the rate field. The calculator multiplies the first 40 hours by your rate (regular pay) and any remaining hours by 1.5× your rate (overtime pay), then sums them for total gross pay. For example, 45 hours at $20/hour gives (40 × $20) + (5 × $30) = $800 + $150 = $950 gross.
Can I use this for biweekly or two-week pay periods?
This calculator covers one 7-day workweek. For a two-week pay period, run two separate weekly calculations and add the results. Note that federal overtime is calculated per workweek, not per pay period — you cannot average hours across two weeks to reduce overtime liability.
What is a workweek for FLSA purposes?
A workweek is any fixed, regularly recurring period of 168 hours — seven consecutive 24-hour days. Employers set their own workweek start and end days (e.g., Monday–Sunday or Sunday–Saturday). Hours worked outside that 7-day window belong to a different workweek for overtime calculation purposes.