Enter shift start, end, and unpaid break minutes to get gross and net hours—instantly, including shifts that cross midnight. Nothing is uploaded.
A shift hours calculator totals how long a single work shift lasts—from clock-in to clock-out—subtracting unpaid breaks. It handles overnight shifts that cross midnight so nurses, factory, and security workers get accurate net hours without uploading timesheets.
A shift hours calculator measures elapsed time between a shift start and end, then subtracts unpaid break minutes to show net worked hours. It is built for roles where schedules change daily, shifts cross midnight, and small math errors create payroll disputes.
Enter your actual start and end times (for example 22:00 to 06:00). When the end time is earlier than the start on the clock, the tool treats the end as the next calendar day before subtracting breaks. That is the standard approach for overnight shift duration.
Use gross hours to see total span; use net hours for payable time after lunch or rest breaks. For multiple shifts in one day, calculate each segment separately and add the net totals, or use a weekly work hours tool for multi-day rollups.
One shift in, net hours out—including overnight spans and break deductions. Calculations run locally in your browser; nothing is uploaded.
Concise answers for common searches — definitions, steps, and comparisons.
Treat 6:00 AM as the next day: elapsed time is 8 hours gross. Subtract unpaid break minutes (e.g. 30 min) for 7.5 net hours. You do not need to manually add 24 hours—the calculator handles overnight spans.
Shift Hours Calculator — Day, Evening & Overnight Shifts (/shift-hours-calculator) runs in your browser when supported—inputs are not uploaded to EverydayTools servers.
Elapsed minutes from start to end; if end precedes start on the clock, add 24 hours to the end. Net time subtracts unpaid break minutes from that gross span. Results are planning aids—payroll systems may round punches differently.
Formula
Net shift hours = (end − start, with +24h if overnight) − unpaid break minutes.Set clock-in and clock-out times. For overnight work, enter real wall-clock times—the calculator adds a day to the end when it is earlier than the start.
Type total unpaid break time (lunch, meal) in minutes. Do not subtract paid rest breaks unless your policy treats them as unpaid.
Gross hours are total span; net hours are what you typically multiply by hourly rate. Confirm overnight detection if your shift crosses midnight.
Copy the net total for timesheets. If pay stubs differ, check rounding rules—this tool uses exact minute math.
For several shifts per week, repeat per shift or use the weekly work hours calculator to sum days consistently.
Input
Start 22:00, End 06:00, Break 30 minOutput
8.0 h gross, 7.5 h net8 hours span minus 30-minute unpaid break.
Input
Start 09:00, End 17:00, Break 30 minOutput
8.0 h gross, 7.5 h netStandard eight-hour shift with half-hour lunch deducted.
Common real-world scenarios where this tool saves time.
Verify 12-hour or overnight clinical shifts before submitting hospital timesheets.
Confirm day, swing, or graveyard shift length after meal breaks.
Calculate net hours when shifts cross midnight without manual +24h math.
Estimate coverage hours per template before publishing rosters.
Step-by-step chains that connect related tools for common tasks.
Confirm 10 PM–6 AM style shifts produce expected net hours after meal break.
| Task | Shift hours calculator | Weekly work hours calculator |
|---|---|---|
| One overnight or day shift | Best fit—instant net hours | Overkill for a single span |
| Full work week totals | Run each shift, then add | Built for multiple days at once |
| Break as start/end times | Enter total break minutes here | Use break-time calculator for timed lunch windows |
| Overtime thresholds | Shows net time only | Use overtime calculator after weekly totals |
| Related tool | Use this tool when | Use related tool when |
|---|---|---|
| Hours Calculator with Break | You know total unpaid break minutes and want fast net hours for one shift. | You need to enter break start and end times and overlap logic with the shift window. |
| Weekly Work Hours Calculator | You are validating one shift before entering a timesheet line. | You need totals across Monday–Sunday with multiple entries per day. |
Enter real clock times; let the tool add a day when end is earlier than start.
Only subtract unpaid meal or rest time your employer does not pay.
Calculate each segment separately, then add net hours.
Likely cause: Break minutes exceed gross shift span.
Fix: Check break duration and that start/end times are correct for overnight work.
Likely cause: Payroll rounding, paid breaks, or punch snapping rules.
Fix: Use this for validation; confirm final paid hours with payroll.
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When end time is earlier than start (e.g. 22:00 to 06:00), the calculator adds 24 hours to the end before subtracting breaks. Gross is 8 hours; minus 30 minutes unpaid break gives 7.5 net hours.
Gross is clock-in to clock-out span. Net is gross minus unpaid breaks—the figure you usually multiply by hourly rate.
Run the calculator once per continuous segment (e.g. morning and evening blocks) and add the net hours. Gaps between segments are not counted as work time.
No. It returns shift duration only. Use an overtime calculator after you know weekly or daily totals.
Pay stubs may use rounding, paid break rules, or time-clock snapping. Use this tool to validate math, then confirm with payroll.
Shift start, end, and break values are calculated locally in your browser. They are not uploaded to our servers for this tool.
Uses elapsed-minute math with standard overnight handling. Employer rounding may produce small differences.
Planning and validation aid—not legal or payroll advice. Confirm official paid hours with your employer.
Part of Date & Time Tools
More free tools for the same workflow.
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Reviewed by EverydayTools Editorial Team on 2026-05-21.
9:00 AM → 5:00 PM
Estimates gross pay from net hours only — not overtime or shift differential. Time and a half for OT pay.
Net shift time: 7h 30m (7.50 hours)
Gross shift span
8h 0m (8.00 h)
Unpaid break
30 min
Net payable
7h 30m (7.50 h)
Split shifts? Run this once per block and add net hours. Multiple days → weekly calculator.
Press S to swap start/end times.