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Time Card Calculator: Total Work Hours and Overtime

This free time card calculator totals your work hours from clock-in and clock-out times, with unpaid breaks removed. It gives the total in hours and minutes and in decimal hours for payroll, and flags overtime.

By Debmedia Technologies LLP · Kolkata, India · Updated

What Is It and When Do You Need It?

A time card records when you start and finish work, and the total decides your pay. Adding up many shifts with breaks by hand is slow, and rounding errors add up over a month. Employers, freelancers and shift workers all need accurate totals.

Write one shift per line and the tool gives the hours for each shift, the grand total and, if you want, the pay.

How to Use This Tool

  1. Type one shift per line: start time, end time and break minutes.
  2. Optionally enter the daily overtime limit and an hourly rate.
  3. Press Calculate.
  4. Copy the total in the format your payroll needs.

How the Calculation Works

Times are converted to minutes after midnight. Worked minutes are end minus start (adding 1,440 if the shift passes midnight) minus the break. The total is shown as hours and minutes and as decimal hours, which are minutes divided by 60. Pay is decimal hours times the rate.

Worked Example

The three shifts 09:00 to 17:30 with 30 minutes, 09:15 to 18:00 with 45 minutes and 08:30 to 16:30 with no break come to 8:00 + 8:00 + 8:00 = 24 hours, or 24.00 decimal hours. At a rate of 15 the pay is 360.

Common Uses

  • Weekly and monthly timesheets.
  • Freelance billing.
  • Shift workers and night shifts.
  • Checking a payslip.

Tips and Common Mistakes

  • Enter the break in minutes, not hours.
  • Use one line per shift, even on the same day.
  • Local overtime law may differ from the simple daily rule here.

Next, you may need the time duration calculator, decimal hours converter, business days calculator, military time converter.

Everything runs in your browser. Nothing you type is uploaded, stored or sent to any outside service.

Frequently Asked Questions

For each line, end time minus start time minus the break gives the hours worked. Overnight shifts, where the end time is earlier than the start time, are handled by adding 24 hours.
Use 24-hour times such as 17:30, or 12-hour times such as 5:30pm. Separate the start, end and break by spaces.
Payroll often multiplies decimal hours by a rate. 7 hours 30 minutes is 7.5 hours, and 7 hours 45 minutes is 7.75.
If you enter a daily limit, every hour above it on a day is counted as overtime. Rules differ by country and contract, so check your own.

Disclaimer: results are calculated in your browser from the numbers you enter. Check important results before you rely on them for money, health, safety or legal decisions.