Free Business & Work Tools

Time Card
Calculator.

Calculate your daily work hours, subtract unpaid breaks, track overtime, and estimate total payable hours. Enter your time card details to get a clear summary in seconds.

Work hours and breaks Overtime estimates Print or save your summary
Calculate Your Hours

Your workday,
clearly calculated.

Enter your start and end times, break duration, and overtime threshold. For overnight shifts, select the appropriate option. Your calculation stays in this browser.

Time card details

Fill in the fields below. Use the same date for a regular shift, or enable overnight shift for work ending the next day.

1. Shift timings

Enter a valid clock-in time.
Enter a valid clock-out time.
Automatic detection treats an end time earlier than the start time as an overnight shift.

2. Break and overtime

Enter the total unpaid break time during the shift. Enter a break between 0 and 1,440 minutes.
Hours above this threshold are shown as overtime. Enter a regular-hours threshold from 0 to 24.
Rounding applies to net worked time for this estimate.
Optional. Enter 0 if you do not want a pay estimate.
Important: This calculator provides an estimate for timekeeping. Employer rules, paid breaks, overtime eligibility, and rounding policies may differ. Confirm your workplace policy before using these results for payroll.

Understand Your Results

Simple inputs.
Clear calculations.

Understand how the time card calculator works and what each result represents before using the summary for your records.

Time card calculation formula

The calculator determines the elapsed time between clock-in and clock-out, subtracts unpaid breaks, and separates the remaining hours into regular and overtime categories.

Shift duration = Clock-out − Clock-in
Net worked time = Shift duration − Unpaid break
Regular hours = The lower of net worked hours or your regular-hours threshold
Overtime hours = Net worked hours − Regular hours, when positive
Regular pay = Regular hours × Hourly rate
Overtime pay = Overtime hours × Hourly rate

If the shift crosses midnight, the calculator treats the clock-out time as occurring on the following day. The selected rounding option is applied to net worked time before regular and overtime hours are separated.

How to use this calculator

  1. 1
    Enter your clock-in and clock-out times

    Choose the start and end time for your shift. If your shift ends the next day, use the overnight-shift option.

  2. 2
    Subtract your unpaid break

    Enter the total break duration in minutes. Only the amount entered here is deducted from the shift.

  3. 3
    Set regular hours and rounding

    Enter your regular-hours threshold and choose whether net hours should be rounded to the nearest selected interval.

  4. 4
    Add your hourly rate if needed

    Enter an hourly rate to see an estimated pay summary. The pay estimate does not include overtime premiums, deductions, taxes, or other payroll adjustments.

  5. 5
    Calculate and save your results

    Review your summary, copy it to your clipboard, or use Print / PDF to save a record.

Frequently Asked Questions

Time card calculator FAQs.

What is a time card calculator?

A time card calculator helps estimate how long you worked during a shift. It can subtract unpaid breaks, identify hours above a chosen regular-hours threshold, and estimate pay when you provide an hourly rate.

Can I calculate an overnight shift?

Yes. Select “Yes — ends the next day” when your shift crosses midnight. You can also use automatic detection, which treats an end time earlier than the start time as an overnight shift. For a shift starting and ending at the same clock time, choose the appropriate option carefully.

Are breaks automatically deducted?

No. Enter your unpaid break duration in minutes. The calculator subtracts that amount from the total shift duration. If your workplace treats a break as paid time, do not include it in the unpaid-break field.

How does this calculator determine overtime?

It compares net worked hours with the regular-hours threshold you enter. Any net hours above that threshold are displayed as overtime. Actual overtime eligibility and overtime pay rates depend on applicable law, employment terms, and workplace policy.

Does the pay estimate include overtime premiums or deductions?

No. The estimate uses the hourly rate you enter for both regular and overtime hours. It does not add an overtime premium or subtract tax, insurance, or other payroll deductions. Actual payroll may therefore differ.

Can I round my work hours?

Yes. Choose exact minutes or rounding to the nearest 5, 10, or 15 minutes. Employer timekeeping rules may require a particular method, so check your policy before using rounded results for official timesheets.

Are my time card entries uploaded?

This calculator performs its calculations in your browser. It does not send the entered times or hourly rate to a calculation server.

Can I save or print my time card summary?

Yes. Select “Print / PDF” to open your browser's print dialog. From there, you can print the result or select a PDF destination if your browser and device support it. The printed view focuses on the calculated results.

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