What counts as a standard business day?

A standard business day (or workday) is typically Monday through Friday, excluding Saturday and Sunday as well as official public bank holidays.

Can I customize the weekend days for regions like the Middle East?

Yes. You can configure which days are treated as weekends (e.g., Friday and Saturday, or Sunday only) to suit your regional work schedule.

How does the "Add Business Days" mode work?

It starts from your chosen initial date and advances one day at a time, skipping any weekend days and designated holidays until your specified number of working days has elapsed.

Does this calculator include the end date in the total?

You can toggle whether the end date is included in the count. By default, both the start date and end date are counted if they fall on working days.

Are my project dates stored or logged?

No. All calculations are executed purely in client-side JavaScript in your browser; no data is ever uploaded or retained.

Business Days & Workdays Calculator

Calculate working days, weekends, and holidays between two dates or add business days.

100% free
Private in browser
No signup
No watermarks

Start Date

End Date

Weekend Days

Count End Date?

Exclude Custom Holidays

Working Days Calculation

Working Days

Net workdays counted

Weekend Days

Non-working weekend days

Total Calendar Days

Total elapsed days

Between 2026-09-14 and 2026-10-31: 35 working days, 13 weekend days, and 0 holidays (48 total calendar days).

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About Business Days & Workdays Calculator

Need to find how many business days exist between two dates for a project sprint, shipping SLA, court filing, or payroll cycle? The Business Days Calculator on TheToolss computes working days, weekends, and designated public holidays with exact calendar precision. You can also project forward or backward by adding N business days to discover your exact delivery date. Completely free, customizable for any workweek, and runs instantly in your browser.

How to use Business Days & Workdays Calculator

Choose your calculation mode: Between Dates or Add Business Days.
Select your start date and target end date (or specify how many workdays to add).
Configure your weekend days (e.g. Saturday-Sunday or Sunday only) and add optional public holidays.

Key features

Counts working days, weekend days, and calendar days accurately
Forward and backward business day projection to calculate deadlines
Customizable weekend schedules (Sat/Sun, Sun only, Fri/Sat)
Add custom public or bank holidays to exclude from calculations
Option to include or exclude the final end date

Frequently asked questions

What counts as a standard business day?: A standard business day (or workday) is typically Monday through Friday, excluding Saturday and Sunday as well as official public bank holidays.
Can I customize the weekend days for regions like the Middle East?: Yes. You can configure which days are treated as weekends (e.g., Friday and Saturday, or Sunday only) to suit your regional work schedule.
How does the "Add Business Days" mode work?: It starts from your chosen initial date and advances one day at a time, skipping any weekend days and designated holidays until your specified number of working days has elapsed.
Does this calculator include the end date in the total?: You can toggle whether the end date is included in the count. By default, both the start date and end date are counted if they fall on working days.
Are my project dates stored or logged?: No. All calculations are executed purely in client-side JavaScript in your browser; no data is ever uploaded or retained.