Night Shift Hours Calculator

Advice for this situation

Night-shift calculations matter when a shift overlaps both ordinary daytime work and a separate night or enhancement window. In the UK, unpaid lunch breaks normally only come out of paid time when you are genuinely relieved from work, average weekly hours are usually checked over a longer reference period, and overtime premiums often come from the contract rather than one universal statutory rate.

Night-shift confusion usually comes from using the wrong definition of the night window for the role or sector. If your workplace uses paid breaks, on-call time, or shift differentials, compare the calculator result with your rota rule before treating the number as payroll-ready.

UK guidance on this page is a practical planning layer, not legal advice. If the answer affects pay, dismissal, leave entitlement, or a formal workplace process, verify it against the contract, policy, collective rule, or official guidance that applies to your role.

• Check the exact night window your employer or policy uses before relying on the split.
• If a break falls mostly inside the night period, confirm whether your workplace prorates it in the same way.
• Night work is easier to compare across weeks when you keep total hours and night hours side by side.

What you can enter

• Start time
• End time
• Ends next day: Turn the option on or off.
• Break minutes
• Night window: Choose from 10pm to 6am, 11pm to 7am, Midnight to 6am.

Example uses

• 10pm to 6am split - Shows how much of the shift sits inside the configured night band.

Frequently asked questions

• Can I change the night band? Yes. Pick a predefined night window.

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