Business Days Calculator
Business days (workdays) exclude weekends (Saturday and Sunday) and optionally holidays. To calculate: count all days between dates, subtract weekends (typically 2 per week), subtract holidays. A standard work month has ~20-23 business days. For example, January 15 to January 31 spans 16 calendar days but only 12 business days (excludes 2 weekends and MLK Day). Useful for project deadlines, shipping estimates, and SLA calculations.
Calculate business days between two dates or add business days to a date. Excludes weekends (Saturday and Sunday) by default. Optionally exclude US federal holidays or add custom holidays. Shows calendar visualization with weekends and holidays highlighted.
Works OfflineDark ModeNo Ads
Calculation Mode
Dates
Holiday Options
Calendar
February 2026
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Start / End
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How to Use
- Enter your value in the input field
- Click the Calculate/Convert button
- Copy the result to your clipboard
Frequently Asked Questions
- What are business days?
- Business days (also called working days or weekdays) are Monday through Friday, excluding Saturday and Sunday. In most countries, business days also exclude public holidays. There are typically 250-252 business days in a year, or about 20-22 per month. Business days are used for shipping estimates, contract deadlines, payroll, and legal time limits.
- How do I calculate business days between two dates?
- To calculate business days between two dates, count all days in the range and subtract weekends (Saturdays and Sundays). For more accuracy, also subtract any public holidays that fall on weekdays. For example, from Monday Jan 6 to Friday Jan 17 is 12 calendar days but 10 business days (excluding the two weekend days). Our calculator handles this automatically.
- How do I add business days to a date?
- To add business days to a date, count forward from the start date, skipping weekends and holidays. For example, adding 5 business days to a Wednesday means the result is the following Wednesday (skipping Saturday and Sunday). If holidays fall within the range, the result date shifts further. Use negative numbers to subtract business days.
- How many business days are in a month?
- A typical month has 20 to 23 business days, depending on how weekends and holidays fall. February usually has 20 business days (18-19 in a short month with holidays). Months with 31 days can have up to 23 business days. On average, plan for about 21-22 working days per month.
- How many business days are in a year?
- A standard year has 260 weekdays (52 weeks × 5 days). After subtracting US federal holidays (typically 11), there are about 249-251 business days. The exact count varies by year depending on which days holidays fall on and whether your employer observes additional holidays.
- What US federal holidays are excluded from business days?
- The 11 US federal holidays are: New Year's Day, Martin Luther King Jr. Day, Presidents' Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving Day, and Christmas Day. When a holiday falls on Saturday, it is typically observed on Friday; when on Sunday, it is observed on Monday.