Work Tools
Lunch Break Duration Calculator
Enter when your lunch or other break starts and when you return to find the elapsed hours and minutes.
Calculations happen locally in your browser.
How to use this calculator
- Enter the break start and return time.
- Review the live result and use Copy result when you need to share it.
How the calculation works
The calculator subtracts the start time from the return time in whole minutes. If the return time is earlier than the start time, it treats the return as occurring after midnight on the following day.
Formula
Break duration = return time − start time (add 24 hours when the break crosses midnight)
Step-by-step calculation
- Enter the break start and return time.
- The difference is calculated in whole minutes, with an earlier return interpreted as after midnight.
- Check the displayed result, then copy it if needed.
Worked example
A lunch break from 12:15 PM to 12:45 PM lasts 30 minutes. An overnight break from 11:50 PM to 12:20 AM also lasts 30 minutes.
Common lunch-break durations
These examples show elapsed time only. Workplace break entitlements and recording rules vary, so use the times that apply to your own schedule.
Lunch start and return-time examples
| Break starts | Return time | Duration |
|---|---|---|
| 12:00 PM | 12:30 PM | 30 minutes |
| 12:15 PM | 12:45 PM | 30 minutes |
| 12:00 PM | 1:00 PM | 1 hour |
| 11:50 PM | 12:20 AM | 30 minutes |
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Frequently asked questions
Does this tool send my inputs anywhere?
No. The interactive calculation runs in your browser and this site does not submit tool inputs to a backend.
How should I use the result?
Check that the entered units and values match your situation, especially around dates, breaks, and rounding.