Business Days Calculator: Working Days Excluding Weekends & Holidays

Calculate business days between dates excluding weekends and holidays. Support for multiple countries, custom weekend patterns, and half-day calculations. Perfect for project planning and deadline management.

Holiday Database
Custom Weekends
Multiple Countries
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Calculate Business Days Learn About Business Days

Business Days Calculator

Calculate working days between dates, excluding weekends and holidays with customizable settings.

1. Select Date Range

Start Date

End Date

Start Date
End Date

2. Configure Settings

3. Export Results

Understanding Business Days and Working Time Calculations

Learn about business days, holiday calculations, and how to properly account for working time in project planning

What are Business Days?

Business days are working days that exclude weekends and public holidays. They're essential for project planning, legal deadlines, shipping estimates, and financial calculations.

Key Components:

  • Weekdays: Monday through Friday (typically)
  • Excluded Weekends: Saturday and Sunday (varies by region)
  • Public Holidays: National and regional holidays
  • Custom Patterns: Industry-specific working days

Different countries and industries may have different definitions of business days, which is why our calculator supports multiple configurations.

Why Business Days Matter

Project Planning: Accurate timeline estimation for deliverables and milestones.

Legal Deadlines: Court filings, contract deadlines, and regulatory compliance.

Shipping & Logistics: Delivery estimates and transit time calculations.

Financial Calculations: Interest accrual, payment terms, and settlement periods.

Resource Planning: Staff scheduling and capacity planning.

Holiday Variations by Country

United States: Federal holidays like New Year's Day, Independence Day, Thanksgiving.

United Kingdom: Bank holidays including Boxing Day, Easter Monday, Spring Bank Holiday.

Canada: National holidays like Canada Day, Victoria Day, Thanksgiving.

Australia: Public holidays including Australia Day, ANZAC Day, Boxing Day.

India: National holidays like Independence Day, Republic Day, Gandhi Jayanti.

Our calculator includes comprehensive holiday databases for major countries and regions.

Custom Weekend Patterns

Standard (Sat-Sun): Most Western countries and businesses.

Islamic Countries: Friday-Saturday weekends in many Middle Eastern countries.

Retail: Some businesses operate 7 days a week with different staffing.

Healthcare: 24/7 operations with shift-based scheduling.

Custom Patterns: Industry-specific or company-specific working schedules.

Business Days Calculator FAQ

Frequently asked questions about business days calculations

How accurate are the holiday databases?

Our holiday databases include major national holidays for each country. However, holidays can vary by state/province and may change from year to year. For critical applications, always verify with official sources or add custom holidays as needed.

What's the difference between including and excluding start/end dates?

Including a date means it counts as a business day if it's a working day. Excluding means it doesn't count regardless. For example, if you're calculating "5 business days from Monday," you might want to exclude the start date to get 5 full working days.

Can I add custom holidays?

Yes! Select "Custom Holidays" from the country dropdown and you can manually add specific dates that should be excluded from business day calculations. This is useful for company-specific holidays or local observances.

How do half-days work?

Half-day support allows you to count partial working days. For example, if a holiday falls on a Friday and your company closes at noon, you might count it as 0.5 business days instead of a full non-working day.