Business Days Calculator
Free business days calculator. Count working days between dates or add business days. Exclude weekends and holidays easily.
🔒 Fast, free math calculators that run in your browser. No uploads, 100% private.
Last updated: January 2026
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Frequently Asked Questions
What is a business day?
A business day (or working day) is typically Monday through Friday, excluding public holidays. Banks, government offices, and most businesses operate on business days.
How do I count business days between two dates?
Count all days between the dates, then subtract weekends and holidays. From Monday Jan 1 to Friday Jan 12 is 12 calendar days but only 10 business days (excluding 2 weekends).
Do business days vary by country?
Yes. The standard work week differs globally. Many Middle Eastern countries work Sunday-Thursday. Holidays also vary by country. Always confirm the specific business calendar being used.
Why do businesses use business days for deadlines?
Business day deadlines ensure recipients have normal working hours to respond. A '5 business day' deadline gives the same actual working time regardless of which day of the week you start.
How long is 3-5 business days?
3-5 business days typically means 5-9 calendar days. If you order on Monday, 3 business days is Thursday. If you order Friday afternoon, it may be the following Wednesday or Thursday.