Time & DateUpdated Aug 2026

Time Card Calculator

Track hours worked across shifts with lunch-break deduction, overtime at 1.5x for hours over 40/week, and full pay breakdown.

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Updated 2026

How do you calculate work hours from clock-in times?

Work hours are the total time between clock-in and clock-out, minus unpaid breaks. For payroll, they are usually converted to decimal hours (7 hours 30 minutes = 7.5 hours) and multiplied by the hourly rate, with overtime (over 40 hours per week in the US) paid at 1.5x. A time card calculator handles multiple shifts per day, lunch deductions, overtime across a workweek, and shows the gross pay breakdown for each shift and the total.

Time Card & Hours Calculator

US federal rule: 40 hours / week

Federal default: 1.5x (time-and-a-half)

Shifts (5)

ShiftClock-inClock-outBreak (min)Hours
#17h 30m
#27h 30m
#37h 30m
#47h 30m
#57h 30m

Times use 24-hour format. A clock-out earlier than clock-in is treated as an overnight shift (crosses midnight). Default 5 shifts represent a standard Mon-Fri workweek.

Total Hours

37h 30m

37.50 decimal hours

Regular Hours

37h 30m

Up to 40 / week

Overtime Hours

0h 0m

@ 1.5x rate

Pay Breakdown

Regular pay$750.0037h 30m × $20.00
Overtime pay$0.000h 0m × $20.00 × 1.5
Gross pay$750.00Total 37h 30m

Total hours shown as 37:30 in HH:MM format (decimal: 37.50). Timesheet-ready.

How overtime is calculated

The US Fair Labor Standards Act (FLSA) requires non-exempt employees to receive overtime pay of 1.5x the regular rate for any hours over 40 in a single workweek. Some states (notably California) also have daily overtime rules above 8 hours per day, but this calculator applies the federal 40-hour weekly rule.

The total across all shifts in your time card is summed first. Hours up to the threshold (default 40) are paid at the regular rate; anything above is multiplied by the overtime multiplier (default 1.5x). Decimal hours like 7.5 are converted back to HH:MM for traditional timesheets.

Verified accuracy

Cross-checked against authoritative formulas (IRS, NIST, ACM) and updated for 2025/2026 tax years and rates.

Instant results

No server roundtrip. All math runs in your browser so results appear the moment you finish typing.

Your data stays private

We never collect, store, or transmit your inputs. Every calculation runs locally in your browser.

Learn as you calculate

Each calculator includes the formula, plain-English explanation, and FAQs so you understand the result.

Estimates only. Calculator results are for educational and planning purposes — not professional advice. For binding decisions on taxes, investments, health, or legal matters, consult a qualified professional.

FAQ

Frequently asked questions

Everything you need to know about this calculator. Can't find what you're looking for? Email our team.

A time card calculator is a free payroll tool that computes hours worked and gross pay from clock-in and clock-out times. Our time card calculator handles multiple shifts, lunch break deductions, overtime at 1.5x for hours over 40 per week, and total pay breakdown. The time card calculator is used by employees to verify paychecks and by employers to track timesheet accuracy.

How it works

How to calculate work hours and pay from clock-in times

Our time card calculator totals hours worked and gross pay from clock-in and clock-out times, with lunch-break deduction and overtime at 1.5x for hours over 40.

  1. 1

    Enter clock-in and clock-out

    Type your start time and end time for each shift. Use the 12-hour format with AM/PM. The time card calculator handles overnight shifts that cross midnight.

  2. 2

    Set the lunch break minutes

    Type the unpaid lunch break duration in minutes. The default 30 matches a standard US lunch. The time card calculator deducts this from the gross shift duration.

  3. 3

    Enter your hourly rate

    Type your hourly wage in dollars. The time card calculator multiplies regular hours by this rate, then multiplies overtime hours (over 40/week) by 1.5x.

  4. 4

    Add more shifts if needed

    Use the 'Add shift' button to add more days or shifts to your time card. The time card calculator aggregates all shifts into weekly regular hours, overtime hours, and gross pay.

  5. 5

    Read the breakdown

    The time card calculator shows total hours worked, regular hours, overtime hours (over 40/week), regular pay, overtime pay, and gross pay. The table lists each shift with its individual hours for timesheet accuracy.

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