Time Card Calculator
Total work hours from clock-in and clock-out, with break and pay
Hours Worked
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This time card calculator totals your hours worked from clock-in to clock-out, subtracts unpaid breaks, and converts the result into decimal hours for payroll. It automatically handles overnight shifts that cross midnight. Add your hourly rate to see estimated pay.
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Frequently Asked Questions
How do I calculate hours worked from clock-in and clock-out?
Subtract the start time from the end time, then subtract any unpaid break. For example, 9:00 to 17:30 is 8.5 hours; minus a 30-minute lunch leaves 8 hours worked.
How do I handle an overnight shift?
This calculator automatically detects when the clock-out time is earlier than clock-in (e.g. 22:00 to 06:00) and adds 24 hours so the overnight shift calculates correctly as 8 hours.
How do I convert minutes to decimal hours for payroll?
Divide the minutes by 60. So 30 minutes = 0.5 hours, 15 minutes = 0.25 hours, and 45 minutes = 0.75 hours. Payroll systems use decimal hours, which this calculator shows automatically.
Should lunch breaks be paid?
Under U.S. federal law, bona fide meal breaks (usually 30+ minutes) are unpaid, while short rest breaks (5–20 minutes) are typically paid. Enter only unpaid break time to subtract it from your total.
What time format should I use?
Enter times in 24-hour HH:MM format — for example 09:00 for 9 AM and 17:30 for 5:30 PM. This avoids AM/PM confusion and handles overnight shifts cleanly.