How do you calculate work hours after breaks?
Subtract total unpaid break time from shift duration. Example: 08:00–17:00 is 9 hours; minus 1 hour breaks = 8 net hours.
Enter shift start, end, and total unpaid break time to see net working hours—calculated locally, never uploaded.
Use this free break time calculator to calculate work hours after subtracting lunch or break time. Perfect for employees, payroll, and shift tracking.
Tip: If break time crosses midnight, the calculator automatically matches it to your shift window.
Total Work Time (excluding break)
7h 30m (7.50 hours)
Break Duration
0h 30m
A break time calculator subtracts unpaid lunch and breaks from shift start and end times to show net working hours—ideal for timesheets and payroll estimates.
A break time calculator helps you subtract breaks and lunch from a shift or workday to find net working hours. It is especially useful when you take multiple breaks, when your break pattern changes day to day, or when you want to separate paid time from unpaid time for payroll or invoices.
Enter shift start, shift end, and total unpaid break duration. The tool handles overnight shifts when the end time is on the next calendar day. All calculations run in your browser—times are not uploaded to servers.
Use it when your goal is net work time after breaks—especially with multiple breaks or variable lunch patterns.
Concise answers for common searches — definitions, steps, and comparisons.
Subtract total unpaid break time from shift duration. Example: 08:00–17:00 is 9 hours; minus 1 hour breaks = 8 net hours.
No. Shift and break calculations run locally in your browser and are not uploaded to servers.
Break time is deducted from the total shift duration to produce net working time. When breaks are entered as a total, the tool subtracts that total—matching how many payroll systems model unpaid lunch.
Formula
Net time = (end time − start time) − total unpaid break time.Add clock-in and clock-out. If the shift crosses midnight, the end time is treated as the next day.
Add total unpaid break minutes (lunch plus unpaid breaks). Do not deduct paid rest periods.
Check net hours and minutes and confirm they match your expectation for paid or billable time.
Apply the same break deduction rule across your schedule so weekly totals stay comparable.
Input
Shift 08:00–17:00; breaks: 0:15 + 0:30 + 0:15 (total 1:00)Output
8 hours netA 9-hour shift minus 1 hour of total unpaid breaks equals 8 net hours.
Input
Shift 14:00–20:00; break 0:00Output
6 hours netIf no unpaid break is deducted, net time equals total shift duration.
Common real-world scenarios where this tool saves time.
Subtract an unpaid lunch from a shift to match paid hours shown in timesheet systems.
Deduct breaks so billed time reflects only active work time.
Apply a consistent deduction method across schedules for cleaner weekly totals.
Account for days where lunch or break duration changes without manual subtraction errors.
| Tool | Focus | When to use |
|---|---|---|
| Break time calculator | Deduct total break minutes | Multiple breaks or lunch-focused shifts |
| Work hours calculator | Clock-in/out + decimal hours | Single shift with decimal export |
| Weekly work hours | Sum days | After you have daily net totals |
If your start/end times already exclude breaks, do not subtract break time again.
Only deduct breaks that reduce paid time according to your policy or contract.
Use the same break deduction approach across the week to keep totals comparable.
Likely cause: Break time may be too large or entered in the wrong unit.
Fix: Verify break duration and confirm whether it should be deducted (unpaid) or not (paid).
Likely cause: Payroll may round punches or treat breaks differently.
Fix: Match payroll rules and treat this tool as a planning estimate.
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Subtract total unpaid break time from the shift duration. For example, 08:00–17:00 is 9 hours. If breaks total 1 hour, net time is 8 hours.
Both deduct breaks; a break time calculator is optimized for break-focused scenarios (multiple breaks, lunch patterns). Hours-with-break suits a simple single break on one shift.
Overtime is based on worked time. Unpaid breaks generally reduce worked hours. Use net hours that match your payroll rules.
Yes. Many freelancers deduct breaks from billable time. For decimal-hour invoices, pair with the work hours calculator.
Yes. When end time is earlier than start on the clock, the tool treats the end as the next day before subtracting breaks.
Break Time Calculator — Work Hours After Breaks (/break-time-calculator) runs in your browser when supported—inputs are not uploaded to EverydayTools servers.
Results depend on correct start/end times and whether break time matches unpaid-time rules.
Paid/unpaid break rules vary. Verify official paid hours with your employer, contract, or payroll system.
Part of Date & Time Tools
More free tools for the same workflow.
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Reviewed by EverydayTools Editorial Team on 2026-05-20.