Hours & Time Tracking Calculator
Shift Work Calculator
Calculate hours for shifts that cross midnight (overnight), with break deduction and overnight-shift detection for night workers.
What this calculator does
- Built on official FLSA federal labor standards (29 CFR Part 541).
- 100% free, no signup — calculations run instantly in your browser.
- Results include a plain-English interpretation of what the numbers mean.
Shift Times
If end is earlier than start, the shift crosses midnight.
$
Shift Hours
Enter your shift times.
0
Hours worked
Overnight shift—
Break deducted0 min
Shift pay$0.00
Disclaimer. All results are for reference only and are not professional legal or payroll advice. Calculations reflect the FLSA rule restored May 15, 2026 (29 CFR Part 541). State rules may impose stricter requirements.
How this calculation works
Overnight shifts that cross midnight require special handling: if the end time is earlier than the start time, the shift wraps into the next day. This calculator automatically adds 24 hours in that case.
Federal law does not require a night-shift pay premium, though many employers offer one. The 40-hour weekly overtime threshold still applies regardless of when shifts occur.
Frequently Asked Questions
How are overnight shifts calculated?
When clock-out is earlier than clock-in (e.g., 22:00 start, 06:00 end), the calculator treats the shift as crossing midnight and adds 24 hours to the end time before computing worked hours.
Is night shift premium required by federal law?
No. The FLSA does not require a night-shift differential. Shift premiums are set by employer policy, union contract, or certain state/local rules.
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