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Date and TimeFree

Shift Hours Calculator

Shift hours calculator for 2026 timesheets and rota planning. Enter start time, end time, and unpaid break minutes to calculate total hours, including overnight shifts.

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Result

Enter values above and click Calculate to see your result.

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Formula

#
Core Formula
Worked Hours=Shift End−Shift Start−Break Minutes60\text{Worked Hours} = \frac{\text{Shift End} - \text{Shift Start} - \text{Break Minutes}}{60}

How it works: The calculator converts both times into minutes, adjusts for overnight shifts when the end time falls after midnight, subtracts unpaid break time, then converts the result back to hours.

Worked Example

Start: 9:00, End: 17:30, Break: 30 minutes.
1Step 1: Gross shift = 8 hours 30 minutes
2Step 2: Subtract unpaid break = 30 minutes
3Step 3: Net worked time = 8 hours
Result: 8.0 worked hours.

Frequently Asked Questions

Can this calculate overnight shifts?

Yes. If the end time is earlier than the start time, the calculator assumes the shift ended after midnight and carries the time into the next day.

Should I include break time?

Enter unpaid breaks in minutes so they are removed from the final worked hours total. Paid breaks should usually stay included in the gross shift length.

How do I convert worked hours into decimal time?

The calculator returns decimal hours automatically. For example, 7 hours 30 minutes becomes 7.5 hours, which is easier to use in payroll systems and timesheets.

Why do payroll systems use decimal hours?

Decimal hours make wage calculations simpler. If you worked 7.5 hours at $20 per hour, payroll can multiply directly to get $150.

Can I use this for timesheets?

Yes. It is useful for daily time tracking, staff rota planning, freelance billing, and checking that scheduled hours match the expected shift pattern.

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