You've probably seen the phrase "allow 3-5 business days for processing" on bank transfers, online orders, or government forms. But what exactly counts as a business day? The answer varies slightly by country and industry, and understanding it can save you from missed deadlines and delayed payments.
Business Day Definition
A business day is any day that is not a weekend (Saturday or Sunday) and not an official public holiday. In the United States, business days are Monday through Friday, excluding the 11 federal public holidays each year. Banks, financial institutions, courts, and government offices operate only on business days.
Business Days vs. Working Days vs. Calendar Days
| Term | Definition | Includes Holidays? |
|---|---|---|
| Calendar Days | All 7 days of the week, no exceptions | Yes |
| Working Days | Monday–Friday, can include holidays | Sometimes |
| Business Days | Monday–Friday, excluding public holidays | No |
In casual conversation, "working days" and "business days" are often used interchangeably. However, in formal legal and financial contexts, "business days" specifically excludes all recognized public holidays.
How to Count Business Days: Step-by-Step
Example: You order a product on Wednesday, May 21, 2025. The website says "ships in 5 business days." When does it ship?
- Day 1: Thursday, May 22 ✓ (business day)
- Day 2: Friday, May 23 ✓ (business day)
- Skip: Saturday, May 24 ✗ (weekend)
- Skip: Sunday, May 25 ✗ (weekend)
- Skip: Monday, May 26 ✗ (Memorial Day — federal holiday)
- Day 3: Tuesday, May 27 ✓ (business day)
- Day 4: Wednesday, May 28 ✓ (business day)
- Day 5: Thursday, May 29 ✓ (business day)
- Ships on: Thursday, May 29, 2025
Without accounting for Memorial Day, you might have expected May 28. That's one day off — which matters for shipping, legal deadlines, and financial transactions.
US Federal Holidays 2025 (Non-Business Days)
- January 1 – New Year's Day (Wednesday)
- January 20 – Martin Luther King Jr. Day (Monday)
- February 17 – Presidents' Day (Monday)
- May 26 – Memorial Day (Monday)
- June 19 – Juneteenth National Independence Day (Thursday)
- July 4 – Independence Day (Friday)
- September 1 – Labor Day (Monday)
- October 13 – Columbus Day (Monday)
- November 11 – Veterans Day (Tuesday)
- November 27 – Thanksgiving Day (Thursday)
- December 25 – Christmas Day (Thursday)
Business Days in Other Countries
Business days vary by country. In most Muslim-majority countries, the workweek runs Sunday–Thursday, with Friday and Saturday as the weekend. In Israel, the workweek is Sunday–Thursday as well, with Shabbat (Saturday) as the day of rest. India follows a Monday–Saturday half-day structure in many sectors. Always confirm the local business day rules when dealing with international partners.
Where Business Days Matter Most
- Banking: Wire transfers and check clearances take 1–5 business days
- E-commerce: Shipping and delivery windows are quoted in business days
- Legal: Court filings and appeal periods use business day deadlines
- HR: Notice periods, severance pay windows, and benefit effective dates
- Government: Permit processing, tax refund timelines, and response deadlines
Count Business Days Instantly
Use our free Business Days Calculator to find exactly how many working days are between any two dates, with US holiday exclusion.
Open Business Days Calculator →