How to Calculate Hours Worked From a Time Card

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Quick answer

Calculate each shift’s elapsed time, subtract the total of its unpaid breaks, and add the daily net minutes to get the week.

Open Time Card Calculator

Step by step

  1. Record the start and end clock for each day, including whether the end follows midnight. Use minutes for both the shift and its breaks.
  2. Subtract only break minutes you have identified as unpaid. If a break exceeds the elapsed shift, correct the entries before totaling.
  3. Add exact daily net minutes. Divide by 60 for decimal hours, or keep the whole hours and remaining minutes.

Worked examples

Day shift

09:00 to 17:30 is 510 minutes. Subtract a 30-minute unpaid break to get 480 minutes, or 8 hours.

Overnight shift

22:00 to 06:00 next day is 480 minutes. After a 45-minute unpaid break, the net is 435 minutes, or 7:15.

Sample week

Net minutes of 480, 465, 480, 450 and 435 sum to 2,310 minutes, or 38 hours 30 minutes (38.5 hours).

What to check

Keep the original punches and unpaid break totals so you can reproduce the result. For durations you already recorded, total the time log directly.

Related guides

Sources

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