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Business Day Calculator

Business Days Between Two Dates

Last reviewed: May 19, 2026

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Use this calculator to find the exact number of business days between any two dates, excluding weekends and public holidays. This tool is ideal for calculating contract durations, payment windows, project timelines, and legal deadlines where only working days count. Select your country to automatically factor in regional public holidays, and get results instantly without any sign-up or download required.

How the count works

Pick a start and end date and the calculator counts every weekday in the range, subtracting any public holidays for the country you selected. In the example below, Memorial Day on Monday May 25 is shaded amber because it is a US federal holiday on a weekday, so it is excluded from the business-day count of 23.

Two-month calendar showing 23 business days between Monday May 11, 2026 and Friday June 12, 2026, with Memorial Day shaded amber as the one excluded holiday.
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For informational purposes only

This calculator provides general estimates based on business day counting rules. It does not constitute legal advice. Deadlines in legal, regulatory, or contractual matters may be subject to jurisdiction-specific rules, court orders, or statutory exceptions. Always verify critical deadlines with a qualified professional.

Frequently Asked Questions

How are business days between two dates calculated?
The calculator counts every weekday (Monday–Friday) between your start and end dates, then subtracts any public holidays that fall on those weekdays for the selected country.
Is the start date included in the count?
No, the start date is not counted. The count begins from the day after the start date up to and including the end date, matching standard business practice.
Can I calculate business days across different time zones?
The calculator uses calendar dates rather than time zones. Enter the dates as they appear in your local calendar and select the relevant country for holidays.
Why might my count differ from my bank or broker?
Settlement conventions can differ; for example, T+2 in finance uses a specific set of market holidays. Our calculator uses federal/national public holidays. For financial settlements, verify against the applicable exchange calendar.
How many business days are in a typical month?
A typical month has 20–23 business days depending on the number of weekdays and public holidays. Use the Business Days in Month calculator for an exact count for any specific month.