How does the Time Card Calculator work?

Enter your clock in and clock out times, optionally set a lunch break duration, and click Calculate. The tool instantly calculates your total work hours and overtime. All calculations happen locally in your browser.

Is the Time Card Calculator free to use?

Yes, this tool is completely free with no signup required. Everything runs locally — your data is never uploaded to any server, ensuring complete privacy and security.

Are the Time Card Calculator results accurate?

Yes, the calculator uses standard time arithmetic formulas. Calculations are performed using JavaScript's built-in precision. For payroll decisions, always verify with your employer's system.

Time Card Calculator - Work Hours Calculator

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Free online time card calculator — supports Clock In/Out time calculation. Input Clock In Time and Clock Out Time, auto dynamically calculate work hours long and Overtime. Supports divide, auto and HR backup tools. | No signup · Data never uploaded

Zero dependencies · Works offline

Enter clock-in/out times to calculate work hours

Updated: 2026-07-25

🔵 Clock In

🔴 Clock Out

Deduct lunch break

⏱ Standard: 8 hrs/day

8.00

Work Hours

0.00

Overtime

09:00

Clock In

18:00

Clock Out

⏱ Time Card Calculator

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