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Business Days Calculator

Calculate business days between two dates

Last Updated: July 2026
Period start date
Period end date
Comma-separated dates (YYYY-MM-DD)
Total Calendar Days
—
In the period
Business Days
—
Mon-Fri excluding holidays
Weekend Days
—
Saturdays & Sundays

Days Breakdown

ComponentValue

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What Is a Business Days Calculator?

A Business Days Calculator computes the number of business days (Monday-Friday) between two dates, excluding weekends and custom holidays. It is used for project timelines, delivery estimates, payment processing, and SLA calculations.

Unlike calendar days, business days reflect actual working days in a typical office environment. This calculator allows you to add custom holidays specific to your company or region.

Frequently Asked Questions

What are business days?
Business days are Monday through Friday, excluding weekends and public holidays. In India, most businesses operate 5 days a week, giving ~21-22 business days per month and ~260 per year.
How are business days different from working days?
Business days exclude only weekends (Sat-Sun). Working days may also exclude company-specific holidays, leaves, or follow a 6-day week. Business days are used for delivery timelines, payment processing, and SLAs.
Are Saturdays business days?
In most modern companies, no. However, some traditional businesses, banks (first/second/fourth Saturday), and government offices may consider Saturdays as working days. This calculator assumes 5-day week.
How to add custom holidays?
Enter comma-separated dates in YYYY-MM-DD format. For example: 2025-01-26, 2025-08-15, 2025-12-25. These dates will be excluded from business days calculation.
Why use business days instead of calendar days?
Business days give realistic timelines for business operations. A 10 business day delivery means 2 weeks of actual work, not 10 calendar days. Banks, courier services, and project managers use business days for planning.

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