Time Card Calculator
Add a week of shifts, deduct unpaid breaks, and see total hours, decimal hours, and optional gross pay. Overnight shifts are supported.
Time Card Calculator
| Day | Clock in | Clock out | Unpaid break (min) |
|---|---|---|---|
| 1 | |||
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| 6 | |||
| 7 |
Your inputs are processed in your browser. No account is needed.
Guide updated 6 October 2026
Add a week of clock-in and clock-out times, subtract unpaid breaks, and see your total hours in both hours-and-minutes and decimal form. An optional hourly rate and weekly overtime setting produce a gross-pay estimate. Use the result to check a time sheet before submitting it.
How to use the time card calculator
- Enter a start and end time for each worked day. Leave both fields empty on days you did not work.
- Enter unpaid breaks in minutes. Do not deduct a break that your employer treats as paid.
- Set the weekly overtime threshold and pay multiplier to the assumptions you want to use.
- Add an hourly rate if you want estimated pay, then select Calculate.
There is one shift row per day for seven days. A partially completed row needs both a start and an end time. For split shifts, combine your worked minutes separately or calculate each shift and add the results.
How work hours and breaks are calculated
Worked minutes = end time − start time − unpaid break minutes. If the end time is earlier than the start time, the calculator adds 24 hours and treats the entry as an overnight shift. It then adds the worked minutes from all completed rows.
A break cannot be longer than its shift. Check mistyped times before changing the break value: a start of 09:00 and an end of 08:00 means a 23-hour overnight interval, not a negative one-hour shift.
Decimal hours are different from clock minutes
Payroll often uses decimal hours. Divide minutes by 60 rather than writing them after a decimal point. Seven hours and 30 minutes is 7.50 hours; seven hours and 45 minutes is 7.75 hours.
| Time worked | Decimal hours |
|---|---|
| 6 hours 15 minutes | 6.25 |
| 7 hours 30 minutes | 7.50 |
| 8 hours 45 minutes | 8.75 |
The decimal total is displayed to two places. For precise reconciliation, also use the hours-and-minutes total.
Weekly overtime and estimated gross pay
Overtime hours = the amount by which total hours exceed your entered weekly threshold, with a minimum of zero. Regular hours = total hours − overtime hours. Estimated pay = regular hours × rate + overtime hours × rate × multiplier.
The threshold and multiplier are editable assumptions. The calculator does not decide your overtime entitlement, apply daily overtime rules, deduct tax, add benefits or account for different rates within the same week. Use your employment terms and payroll guidance to choose the settings.
Worked examples: daytime and overnight shifts
A day with an unpaid lunch break
A shift from 08:15 to 16:45 lasts 8 hours 30 minutes. Subtract a 45-minute break to get 7 hours 45 minutes, or 7.75 decimal hours.
A shift across midnight
From 21:30 to 05:30 is 8 elapsed hours. A 30-minute unpaid break leaves 7 hours 30 minutes. This simple clock calculation does not account for daylight-saving changes.
A weekly pay estimate
For 43 hours, a threshold of 40, a rate of 20 and a multiplier of 1.5, regular pay is 800 and overtime pay is 90. The estimated total is 890 in the currency of your rate.
Common time card mistakes to check
Check AM/PM or 24-hour entries, minutes entered as decimals, paid breaks deducted by mistake and an overtime threshold copied from the wrong arrangement. Keep a separate record of each shift; this page is a calculator rather than a payroll record system. Refreshing or leaving the page can lose your entries.
Time card calculator FAQs
Can I calculate an overnight shift?
Yes. An end time earlier than the start time is treated as the following day.
Does the tool deduct breaks automatically?
It deducts the minutes you enter. It does not choose a legally required break for you.
Is 8 hours 30 minutes the same as 8.30 hours?
No. It equals 8.50 decimal hours.
Is the pay result take-home pay?
No. It is a gross estimate using one rate and your weekly overtime assumptions.
Does it handle a daylight-saving clock change?
No. Check those shifts against dated time records rather than ordinary clock subtraction.