Time calculator

Hours Calculator

Calculate net hours between start and end times, including breaks and overnight shifts.

Timesheet caveat

This calculator uses simple clock time. Payroll systems may round punches, apply overtime rules, split shifts across dates or handle paid breaks differently.

Example

From 09:00 to 17:30 is 8 hours 30 minutes. Subtracting a 30-minute break gives 8 net hours.

Common mistakes

Check the next-day box for overnight shifts. Also confirm whether breaks are paid or unpaid before using the result for timesheets.

Limitations

This calculator does not apply employment law, shift premiums, overtime rules, payroll rounding or time-zone changes.

Last reviewed: 2026-05-17

Before relying on this result

Use this calculator together with the formula, assumptions, limitations and examples on the page. If the topic involves health, tax, lending, investment, legal, safety or current-rate decisions, treat the number as an estimate and check the relevant primary source or professional guidance.

Calculator metadata last reviewed: 2026-05-14.