Time cards, payroll and leave planning · Calculator Without the guesswork.

Time Card Calculator

Subtract an unpaid break from a same-day or overnight shift and estimate straight-time pay. Inputs stay in your browser.

Reference toolTime Card CalculatorSubtract an unpaid break from a same-day or overnight shift and estimate straight-time pay. Inputs stay in your browser.
Reference calculation

Enter your details.

Calculated locally in your browser. Nothing is uploaded to CalcSpan.

Plain-date semantics · start date is not counted unless the result explicitly says inclusive.

Your result
8.00 paid hours

Clock span minus the entered unpaid break; an earlier clock-out is treated as an overnight shift.

Clock span8 hr 30 min
Unpaid break30 minutes
Paid time8.00 hours
Straight-time estimate$200.00$25.00 per hour

Read before relying

Context matters.

  • Confirm compensable breaks, rounding, overtime, split shifts and local wage rules with the employer's policy.
Rule set 1.1.0

Sources & scope

Source & calculation QA reviewed

The calculation guide and this source trail show what the result means, where the rule came from and when it was last reviewed. This is source-and-calculation QA, not a claim of medical, legal, tax or other professional review; time-sensitive decisions still belong with the linked authority.

JurisdictionUnited States work-time planning — exact compensable-time, overtime and rounding rules depend on coverage and jurisdiction
Last reviewed2026-08-22
Next review due2027-02-22
Review scopeCalcSpan source & calculation QA
PrivacyNo input upload
How this calculation works

A visible path from input to answer.

Subtract an unpaid break from a same-day or overnight shift and estimate straight-time pay. The page keeps the calculation scope and its limits beside the result so the output can be checked, copied or revisited.

Calculation flow
  1. Read the record. The calculator uses Clock in, Clock out, Unpaid break (minutes) and Hourly rate (USD) supplied in the form.
  2. Apply the scope. It applies the United States work-time planning — exact compensable-time, overtime and rounding rules depend on coverage and jurisdiction reference and the explicit date, unit and counting conventions shown in the result.
  3. Expose the checkpoints. Intermediate rows, warnings and timeline events stay visible; the emphasized row identifies the primary checkpoint when one exists.
Illustrative default example 8.00 paid hours

Clock span minus the entered unpaid break; an earlier clock-out is treated as an overnight shift.

  • Paid time8.00 hours
Defaults are an illustration only. Replace them with the record that applies to your situation.
Assumptions and scope

Calculation purpose: Subtract an unpaid break from a same-day or overnight shift and estimate straight-time pay. This is a high-sensitivity reference output; the linked authority or qualified professional controls the final decision.

Boundary behavior

Numeric inputs are constrained by the field limits and the result keeps the entered units visible. Zero, minimum, maximum and non-finite values are treated as input boundaries.

Rule trail

Rule set 1.1.0 · Last reviewed 2026-08-22 · Next review due 2027-02-22. The source panel below contains the linked evidence.

Questions answered

What to know before using the result.

Can the time card calculator handle an overnight shift?

Yes. When clock-out is earlier than clock-in, the tool treats clock-out as occurring the following day.

How are unpaid breaks handled?

The entered unpaid break minutes are subtracted from the clock span before paid hours and straight-time pay are estimated.

Does the pay estimate include overtime?

No. Confirm compensable breaks, rounding, overtime, split-shift and local wage rules before relying on payroll amounts.