Free tools
Business Days Calculator
Free business days calculator. Calculate working days between dates excluding weekends and holidays. Add custom holidays for accurate business day counting in any country.
Enter dates in YYYY-MM-DD format, one per line
Business Days
--
Weekends
--
Holidays
--
Total Calendar Days
--
Our free business days calculator is the advanced version of our working days calculator. It calculates business days between dates while excluding weekends AND custom holidays. This is essential for accurate project planning, contract deadlines, payroll processing, and shipping estimates that need to account for holidays.
Business Days vs Working Days
While these terms are often used interchangeably, there's a subtle but important difference:
- Working Days: Typically Monday-Friday, excluding weekends only
- Business Days: Monday-Friday excluding both weekends AND public holidays
For critical deadlines, shipping estimates, and legal contracts, you usually need business days that account for holidays when businesses are closed.
How to Use the Business Days Calculator
- Enter your start and end dates
- Select which days are weekends (default: Saturday & Sunday)
- Add any holidays that fall within your date range
- See the accurate business day count instantly
Common Holiday Examples
United States (2025)
| Holiday | Date |
|---|---|
| New Year's Day | January 1 |
| Martin Luther King Jr. Day | January 20 |
| Presidents' Day | February 17 |
| Memorial Day | May 26 |
| Independence Day | July 4 |
| Labor Day | September 1 |
| Columbus Day | October 13 |
| Veterans Day | November 11 |
| Thanksgiving | November 27 |
| Christmas Day | December 25 |
United Kingdom (2025 Bank Holidays)
| Holiday | Date |
|---|---|
| New Year's Day | January 1 |
| Good Friday | April 18 |
| Easter Monday | April 21 |
| Early May Bank Holiday | May 5 |
| Spring Bank Holiday | May 26 |
| Summer Bank Holiday | August 25 |
| Christmas Day | December 25 |
| Boxing Day | December 26 |
Regional Weekend Variations
Different countries have different weekend structures:
| Country/Region | Weekend |
|---|---|
| Most Western countries | Saturday-Sunday |
| Middle East (UAE, Saudi Arabia) | Friday-Saturday |
| Israel | Friday-Saturday |
| Brunei | Friday-Sunday |
| India (some states) | Sunday only |
Common Use Cases
- Legal Contracts: "Payment due within 30 business days"
- Shipping Estimates: "Delivery in 3-5 business days"
- Project Deadlines: Accounting for holidays in project timelines
- Payroll Processing: Calculating pay periods with bank holidays
- Notice Periods: Employment notice periods that exclude holidays
- SLA Calculations: Service level agreements requiring business days
Tips for Accurate Calculations
- Always check your company's specific holiday schedule
- Consider floating holidays that employees can choose
- Remember that some holidays fall on different dates each year
- Be aware of regional variations (e.g., different states have different holidays)
- Add buffer time for holiday seasons (Thanksgiving week, Christmas/New Year)
Frequently Asked Questions
What is the difference between business days and working days?
Working days typically means Monday–Friday, excluding weekends. Business days are the same, but also exclude public holidays. This calculator supports both — add your country's holidays for true business day counting.
Why do business day calculations matter for contracts?
Many contracts, legal deadlines, payment terms, and delivery commitments are expressed in business days rather than calendar days. Missing a business day deadline can have legal or financial consequences, so accurate calculation is important.
How do I account for public holidays in different countries?
Use the custom holidays field to add the public holidays relevant to your location. There is no universal set — holidays vary by country, region, and even industry. Enter the specific dates that apply to your situation for accurate results.
Does the calculator include the start and end dates?
By convention, business day counting typically excludes the start date and includes the end date (or vice versa depending on context). Check the specific counting convention required by your contract or legal jurisdiction, as this can differ.
How many business days are in a month?
A standard month has roughly 20–23 business days, depending on how weekends fall and whether any public holidays occur. A month with 5 weekends has fewer weekdays. Use this calculator for precise counts when exact planning is needed.
Can I calculate a future date that is N business days from today?
Yes. Set the start date to today and adjust the end date until the calculator shows the target number of business days, or count forward manually by entering your start date and incrementing the end date. A future-date calculator variant can also automate this.