Business Days Calculator

Calculate the date difference by excluding Saturdays, Sundays, and holidays.

Business Days Legal Deadlines Federal Holidays Corporate Calendar
Calculate business day interval
Start Date Thursday, June 11, 2026
End Date Thursday, June 11, 2026

Total business days in the period:

business days
Interval summary: total days ( weekend days and holidays )

How does this tool work?

  • Select start date: Choose the beginning date for your calculation.
  • Enter number of business days: How many working days (Mon–Fri) to add or subtract.
  • Include holidays (optional): Tick if you want to exclude public holidays as well.
  • Calculate: The tool adds business days to the start date, skipping weekends and optionally holidays.
  • Get result date: The resulting date after counting business days.

This calculator adds or subtracts business days (weekdays) from a given start date, optionally excluding holidays. It’s useful for project planning, shipping estimates, legal deadlines, and payroll scheduling.

How to calculate business days between dates?

Our business days calculator automates deadline tracking by automatically excluding weekends and public holidays. It is the ideal tool for legal professionals who need to calculate court deadlines and HR managers for tracking days worked.

Key for Legal and HR Deadlines

Unlike a standard calculator, this system allows you to include or exclude Saturdays and holidays. This is essential for logistics sectors that operate on Saturdays or for calculating overtime banks and employee probation periods.

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Professional checking legal deadlines and business days on a computer

Business Day Settings by Industry

Sector / Application Includes Saturday? Holiday Counting
Legal / Court DeadlinesNo (Business only)Excludes Federal
Retail / LogisticsYes (Usually)Varies by Contract
HR (Probation Periods)Yes (Calendar Days*)Yes*
Banking / FinanceNoExcludes Federal

*Check if your deadline is in business or calendar days before configuring the filters.

Business Days FAQ

The system includes a manual selector. For most legal deadlines, Saturday is not a business day. However, for labor or commercial purposes, Saturday may be considered a working day. Simply toggle "Include Saturdays" to adjust the calculation to your needs.

Our tool uses the official list of federal holidays. Holidays that fall on Sundays do not generate a double deduction, ensuring the accuracy of the interval between dates calculation.

Currently, the calculator focuses on federal holidays. For local holidays (city or state), we recommend manually subtracting them from the final result or unchecking the automatic holidays option to check the generated list.

Depending on the jurisdiction (like Civil Procedure rules), deadlines are often counted only in business days. To use our tool for this purpose, enter the notice date, the final date, and ensure that "Include Saturdays" and "Include Holidays" are set correctly according to your local law.

Yes. The algorithm validates the full calendar from 2025 to 2030, including the correct count for February in leap years, avoiding common errors in manual HR calculations.

Calendar days (or consecutive days) include every day on the calendar without interruption. Business days are only those where banking or legal business is conducted, excluding weekends and holidays.

Yes, the tool is excellent for verifying notice periods or counting actual days worked in the month for payroll processing and attendance tracking.

You can view your last 5 calculations in the "Recent Calculations" section. To save permanently, we recommend using your browser's print function (Ctrl+P) to generate a PDF as proof of your deadline calculation.

Rate this Tool

4.8/5

Based on 12 user ratings.