Example data

Paid and unpaid breaks in the same shift

Only the unpaid break reduces this shift’s counted time.

The sample record

IntervalTreatment
09:00–17:00Eight-hour shift span
10:30–10:4515-minute paid break
12:30–13:0030-minute unpaid break

Check each part once

480 − 30 = 450 minutes = 07:30

The paid fifteen minutes is already part of the 480-minute span. Do not subtract it, and do not add it again after subtracting lunch. The output can list both types of break while only one type changes the deduction.

The labels come from you

Changing the paid interval to unpaid would change the result to 07:15. The calculator can show that arithmetic, but it does not determine which classification a workplace or jurisdiction requires. Keep the classification visible in the record you review and export.

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Frequently asked questions

Why is the answer not 07:45?

Adding the paid fifteen minutes again would count them twice. They are already within the eight-hour span; only the unpaid thirty minutes are deducted.

Why is the answer not 07:15?

That would deduct both the paid and unpaid breaks. The paid interval stays included, so the correct net duration is 07:30.

Sources and method

  • NIST SP 330, Section 4, Table 8Time-unit definitions only; not a payroll authority or product endorsement.
  • Original worked calculationSynthetic example data, explicit input rules and direct integer-minute arithmetic.

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