Business Days Calculator

Category: Time and Date
- October 25, 2025
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Calculate the number of business days between two dates, excluding weekends and public holidays. Perfect for project planning, delivery estimates, and contract deadlines.

Date Range

Weekend Settings

Public Holiday Settings

About Business Days Calculations

Business days are typically Monday through Friday, excluding weekends and public holidays. They are used for:

Common Applications
  • Project Planning: Estimating project timelines based on actual working days.
  • Delivery Estimates: Calculating shipping and delivery timeframes.
  • Contract Terms: Defining deadlines in legal agreements and contracts.
  • Payment Terms: Establishing timeframes for invoicing and payment deadlines.
  • HR & Payroll: Calculating working days for payroll and leave management.
Common Business Day Conventions
  • Standard Business Week: Monday through Friday in most countries and industries.
  • Alternative Business Weeks: Some countries or industries may have different conventions (e.g., Sunday-Thursday in some Middle Eastern countries).
  • Half-Days: Some businesses consider certain days as partial business days (e.g., Christmas Eve).
  • Regional Holidays: Business days exclude national and regional holidays, which vary by country and location.

What Is the Business Days Calculator?

The Business Days Calculator is a simple, interactive tool that helps you calculate the number of working days between two calendar dates. It excludes weekends and optionally excludes holidays based on your selected country or custom holiday list. This tool is perfect for professionals who need to manage schedules, estimate timelines, or determine due dates using actual business days.

How to Use the Calculator

Follow these steps to calculate business days effectively:

  • Select the start date and end date from the calendar fields.
  • Choose whether to exclude Saturdays and/or Sundays.
  • Select a country to automatically exclude national holidays or choose “Custom Holidays” to enter your own dates.
  • Click the Calculate button to see results.
  • View total days, business days, weekends, holidays, and detailed date breakdowns.

Formula Used for Business Days

Business Days = Total Days – Weekend Days – Holiday Days

Why This Tool Is Useful

This calculator is valuable in many real-world scenarios where precise time spans matter. It functions as a:

Common Use Cases

  • Project Planning: Estimate how long a project will take in business days.
  • Contract Deadlines: Determine accurate end dates for legal or Financial agreements.
  • Shipping Estimates: Calculate realistic delivery timelines by excluding non-working days.
  • Payroll Management: Compute pay periods or time worked using business days only.

FAQ

Can I include or exclude weekends?

Yes, simply check or uncheck the Saturday and Sunday options to include or exclude them from your business day calculation.

How are holidays handled?

You can choose a country to apply official national holidays automatically, or you can manually input your own holiday dates by selecting the “Custom Holidays” option.

What happens if I select a weekend-only range?

The tool will return zero business days if your selected date range only contains weekends and holidays, depending on your settings.

Does the tool support multiple countries?

Yes. You can choose from several countries, including the United States, United Kingdom, Canada, and Australia. Each has predefined national holidays.

Can I use it for time tracking at work?

Absolutely. This acts as a work hours tracker or employee time management tool by helping calculate working periods, shift durations, and pay period lengths.

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