Calculate net work time from a start time, end time, and unpaid break. Overnight shifts and optional weekly totals are handled without converting the calculation to rounded decimal hours.
Enter one shift. An end time earlier than the start time is treated as the following day.
Leave Break Duration empty for no break. Leave Days Worked empty when you only need the daily result.
⚠️ Enter a start time.
Net Work Time
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Work hours disclaimer: This calculator performs time arithmetic only. It does not determine break entitlement, overtime eligibility, wages, payroll, taxes, or compliance with employment laws or workplace policies.
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Gross Work Time = End Time − Start Time
Net Work Time = Gross Work Time − Break Time
Decimal Hours = Net Work Minutes ÷ 60
Weekly Work Time = Net Work Time × Days Worked
If the end time is earlier than the start time, the calculator treats the end time as occurring on the following day. For example, 10:00 PM to 6:00 AM is eight gross hours.
Start Time equal to End Time is treated as 0 hours, not a 24-hour shift.
Decimal hours are calculated from the exact net minute total. The display uses two decimal places, but rounded display values are never reused in daily or weekly calculations.
Common conversions include 15 minutes = 0.25 hour, 30 minutes = 0.50 hour, and 45 minutes = 0.75 hour.
| Shift | Break | Net Time | Decimal Hours |
|---|---|---|---|
| 9:00 AM–5:00 PM | 30 min | 7 hr 30 min | 7.50 |
| 8:30 AM–5:00 PM | 30 min | 8 hr | 8.00 |
| 9:00 AM–5:30 PM | 60 min | 7 hr 30 min | 7.50 |
| 10:00 PM–6:00 AM | 30 min | 7 hr 30 min | 7.50 |
These are time-calculation examples, not recommendations about labor law, break requirements, or workplace policy.
These examples use the same calculation rules as the interactive calculator.
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Enter the shift start and end times. The calculator finds the elapsed time, handles an end time on the following day when needed, and subtracts any unpaid break you enter.
Break minutes are subtracted from the gross shift duration. The break must be a whole number of minutes from zero up to the gross duration.
Yes. When the end time is earlier than the start time, the calculator treats the end time as occurring on the following day.
Decimal hours express minutes as a fraction of an hour. The calculator divides net work minutes by 60, so 15 minutes is 0.25 hour and 45 minutes is 0.75 hour.
Seven hours and 30 minutes is 7.50 decimal hours because 30 divided by 60 equals 0.50.
Yes. Enter a whole number from 1 to 7 for Days Worked. The calculator repeats the same net daily duration for each selected day.
No. It totals time only and does not determine overtime eligibility, overtime rates, or compliance with employment rules.
No. It does not calculate wages, salary, payroll deductions, taxes, or take-home pay.
