Direct answer
Count from the start time to midnight, add midnight to the end time, then subtract only the unpaid lunch or meal break.
Midnight changes the calendar date, not the logic of the shift.
Use this answer for calculating an overnight shift that also has an unpaid meal break. Before relying on it, compare the inputs with your time card, schedule, payroll export, or manager-approved timesheet.
Open Hours Worked CalculatorFormula and worked example
Formula: Paid overnight hours = evening segment + morning segment - unpaid meal break.
Example: 10:00 PM to 6:30 AM is 8.5 hours. With a 30-minute unpaid lunch, paid time is 8.0 hours.
Keep the formula and the example visible when you change inputs. That makes it easier to spot whether the difference came from hours, dates, pay frequency, or policy wording.
Comparison table
| Part | Value | Why it matters |
|---|---|---|
| Question | calculating an overnight shift that also has an unpaid meal break | Defines the exact calculation |
| Formula | Paid overnight hours = evening segment + morning segment - unpaid meal break. | Keeps assumptions visible |
| Example | 10:00 PM to 6:30 AM is 8.5 hours. With a 30-minute unpaid lunch, paid time is 8.0 hours. | Shows the number in context |
| Calculator | Hours Worked Calculator | Tests real inputs |
Step-by-step method
Key checks
- Write down the clock times, break minutes, schedule dates, rounding rules, and the workweek boundary before calculating.
- Calculate the simplest version first so the baseline is clear.
- Apply the rule: Paid overnight hours = evening segment + morning segment - unpaid meal break.
- Adjust for unpaid breaks, overnight shifts, split shifts, rounded punches, holidays, weekends, and overtime cutoffs only when those details are part of the real situation.
- Compare the result with your time card, schedule, payroll export, or manager-approved timesheet before using it for a real timesheet, payroll estimate, schedule review, or work-hours note.
What can change the answer
The result can change when unpaid breaks, overnight shifts, split shifts, rounded punches, holidays, weekends, and overtime cutoffs are involved. That does not make the calculator unreliable; it means the inputs need to match the real rule.
If the result is for planning, a close estimate may be enough. If it affects pay, PTO, notice timing, or a formal deadline, use the official record as the final source.
A good habit is to change one input at a time. That shows whether the schedule, pay rate, date range, or policy detail caused the new result.
Common mistakes
Key checks
- Do not subtract 6:30 from 10:00 as if both times are on the same day.
- Do not subtract paid lunch from paid hours.
- Do not assign the shift to the wrong workweek before checking overtime.
Use the related calculator
Use Hours Worked Calculator when you want to test this question with real inputs instead of doing the math in your head.
After calculating, copy the result into a note, spreadsheet, payroll question, PTO request, or personal budget only after checking the assumptions.
If this answer raises a second question, use the related guides below rather than forcing one calculator to cover the whole decision.
Open Hours Worked Calculator