Time Clock Calculator

Add one or more clock-in and clock-out sessions for a workday. The calculator totals exact work time, subtracts unpaid breaks, supports overnight sessions, converts the result to decimal hours, and can estimate pay.

How to use the Time Clock Calculator

1. Enter the first clock-in and clock-out pair.
2. Add unpaid break minutes only when the break occurred inside that session.
3. Use another session for a split shift or a second clock-in after a break.
4. Keep exact punch times selected unless a valid workplace policy requires rounding.
5. Add an hourly rate only when you want a basic pay estimate.
6. Select Calculate work time to see gross time, breaks, total worked time and decimal hours.

What is a time clock calculator?

A time clock calculator totals one or more clock-in and clock-out pairs. It is useful when a workday contains several separate sessions, such as a morning period, a lunch break and an afternoon period.

Single-session example

Multiple clock-punch example

In this example, the one-hour gap between sessions is not counted as worked time, so it does not need to be entered again as an unpaid break.

Overnight clock calculation

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

How punch rounding works

Exact punch times are used by default. Optional rounding changes each clock-in and clock-out to the nearest selected interval before duration is calculated.

Decimal hours reference

Frequently asked questions

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