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Business Days Calculator
Calculate the number of business days between two dates while automatically excluding Saturdays and Sundays.
- 100% local
- Instant
- Free
- No account
- Works offline
Enter two valid dates, with the end date on or after the start date.
Result
Business days
Calendar days
Weekend days
Shifted date
Both dates are included. Public holidays are not deducted yet.
Why use this tool?
Count business days between two dates while automatically excluding Saturdays and Sundays and keeping a clear breakdown of calendar days and weekend days.
Smart processing
Generate, convert, or validate technical data with purpose-built controls.
Supported formats
Technical formats and syntaxes suited to each generator, converter, or validator.
Save time
Get a clean, ready-to-use result in seconds without installing software or configuring a complex workflow.
Fonctionnement
How does this tool work?
The engine walks through every calendar date in the selected range, including both boundaries, and classifies each day by weekday. Saturdays and Sundays are counted as weekend days, while Monday through Friday contribute to the business-day total. The calculation uses local calendar dates only and deliberately does not deduct public holidays because those depend on country and year. No date is sent to a server.
Use cases
Planning
Use this calculation to prepare a deadline or schedule with a value that can be checked immediately.
Verification
Check a result produced elsewhere and identify an input or method mistake more easily before using it.
Everyday use
Get an immediate answer for a common timing need without building a spreadsheet or repeating manual arithmetic.
Guide
How to use this tool
- 1
Enter the values
Provide the dates, times or durations requested by the tool.
- 2
Adjust the options
Choose the units or parameters that match your situation.
- 3
Review the result
The result recalculates automatically whenever an input changes.
Tips and best practices
- Check the entered values before using the result in a document, schedule or decision.
- The calculation runs locally in your browser and your data is not sent to a server.
- Reset the tool whenever you want to start a new scenario with clean inputs.
Frequently asked questions
Is the calculation automatic?
Yes. The result updates as soon as the required values are valid, without sending your data to a server.
Does my data stay local?
Yes. The entered information is processed directly in your browser by the shared Dates & time engine.
Can I change values after a calculation?
Yes. Change any input at any time and the result is immediately recalculated using the new values.
Was this tool useful?
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