Business Days Calculator
Business days calculator: count working days between two dates or add working days, skipping weekends and US holidays. Free, no sign-up, and it runs in your browser.
Dedicated page: /en/business-days-calculator
Deadlines usually exclude the start date. A project span usually counts both dates.
Default checked 10 Nov 2026: 11 US federal holidays for 2026, observed dates, per the US Office of Personnel Management. Independence Day falls on Saturday, July 4, so it is observed Friday, July 3. Check the current value here.
Company holidays, school closures or vacation days. They are skipped like holidays.
Delivery promises count from the day after you order, skipping weekends and holidays.
US federal holidays 2026 (observed): Jan 1 New Year's Day, Jan 19 Martin Luther King Jr. Day, Feb 16 Washington's Birthday, May 25 Memorial Day, Jun 19 Juneteenth, Jul 3 Independence Day (observed), Sep 7 Labor Day, Oct 12 Columbus Day, Nov 11 Veterans Day, Nov 26 Thanksgiving Day, Dec 25 Christmas Day. There are 250 business days in 2026 after removing these 11 holidays. Private employers are not required to close on federal holidays.
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Quick answer
A business days calculator counts working days between two dates, or adds working days to a date, skipping weekends and holidays. It counts Monday to Friday, removes the 11 US federal holidays in 2026, and shows the skipped days, the work weeks, and a month by month table that totals 250 business days for the year.
About this Business Days Calculator
Business days calculator: count working days between two dates or add working days, skipping weekends and US holidays. It is one of the Work and School on ToolUstad, and like every tool here it runs entirely in your browser: nothing you type, paste or open is uploaded to a server, and there is no sign-up or usage limit.
What a business days calculator does
A business days calculator answers two questions. How many working days are there between two dates, and what date is a given number of working days away. Both answers need the same work: start from the calendar days, remove the weekends, then remove the holidays. From 2 November to 31 December 2026 there are 60 calendar days, 16 weekend days and 3 federal holidays, which leaves 41 business days. Add 10 business days to 18 December 2026 and the answer is 5 January 2027, because Christmas Day and New Year Day fall in between.
Deadlines, delivery estimates, notice periods, project plans and payroll all run on business days, which is why the difference from calendar days matters. A 10 business day delivery promised on a Friday before Christmas does not arrive in 10 calendar days. It arrives after two weekends and two holidays, which is 18 calendar days later.
Business days in 2026
The United States has 250 business days in 2026, counting Monday to Friday and skipping the 11 federal holidays. The year starts on a Thursday, and the holidays fall kindly: only three land on a Friday or a Monday in a way that extends a weekend. The month by month figures are January 20, February 19, March 22, April 22, May 20, June 21, July 22, August 21, September 21, October 21, November 19 and December 22. March and April are the longest working months at 22 days each, and February and November are the shortest at 19, because February is short and November has Veterans Day and Thanksgiving.
US federal holidays 2026
The 11 federal holidays in 2026 are New Year Day on Thursday 1 January, Martin Luther King Jr. Day on Monday 19 January, Washington Birthday on Monday 16 February, Memorial Day on Monday 25 May, Juneteenth on Friday 19 June, Independence Day on Saturday 4 July, observed on Friday 3 July, Labor Day on Monday 7 September, Columbus Day on Monday 12 October, Veterans Day on Wednesday 11 November, Thanksgiving on Thursday 26 November and Christmas Day on Friday 25 December. When a holiday falls on a Saturday, federal offices observe it on the Friday before, and when it falls on a Sunday, on the Monday after. That is why Independence Day is counted on 3 July 2026. These dates come from the Office of Personnel Management, which publishes the federal holiday calendar under 5 U.S.C. 6103.
Learn: how to use the Business Days Calculator
- Pick count days between two dates, or add or subtract days from a date.
- Enter the start date and the end date, or the start date and the number of days.
- Choose which days count as the weekend: Saturday and Sunday, Friday and Saturday, Sunday only, or none.
- Pick the holiday set: US federal holidays 2026, none, or your own custom list.
- Choose whether both dates are included, or only one end.
- Read the result, the skipped days list and the month by month table for 2026.
Features
- Count mode and add or subtract mode in one tool.
- US federal holidays for 2026, with observed dates, built in.
- Custom holiday list for company days off and school breaks.
- Four weekend options, including Friday and Saturday weekends.
- Both dates included, or start only, or end only counting.
- Delivery mode that excludes the start date, for shipping dates.
- A list of every skipped day with its name.
- Month by month business day table for 2026, totalling 250 days.
- A work weeks figure, so 41 business days reads as 8.2 weeks.
Worked example
From Monday 2 November 2026 to Thursday 31 December 2026 there are 60 calendar days. Subtract 16 weekend days and 3 holidays, Veterans Day on 11 November, Thanksgiving on 26 November and Christmas Day on 25 December, and 41 business days are left, about 8.2 work weeks. Add 10 business days to Friday 18 December 2026 and you land on Tuesday 5 January 2027, skipping Christmas Day and New Year Day on the way.
Frequently asked questions
How many business days are in 2026?
There are 250 business days in 2026 in the United States, counting Monday to Friday and skipping the 11 federal holidays.
Does the calculator include US federal holidays?
Yes. The US federal holidays 2026 set has all 11 holidays on their observed dates: New Year Day on 1 January, Martin Luther King Jr.
How do I add 10 business days to a date?
Pick add or subtract mode, enter the start date and 10 as the number of days.
Are Saturdays business days?
Not by default. The standard setting counts Monday to Friday only, so Saturdays and Sundays are skipped. If your business works Saturdays, pick the Sunday only weekend option, and Saturdays count.
What is the difference between calendar days and business days?
Calendar days count every day on the calendar, including weekends and holidays. Business days count only working days.
Can I add my own company holidays?
Yes. Choose the custom holiday set, or add dates to the custom days off box in YYYY-MM-DD format, one per line or separated by commas.
Does it work for other countries?
The built-in holiday set is US federal holidays only. For the UK, Canada or Australia, use the custom holiday list and enter that country public holidays yourself, or set holidays to none and count working days only.
How are the start and end dates counted?
By default both dates are included, so a period from Monday to Friday counts as 5 business days. You can switch to excluding the start date, which is how delivery estimates work, or excluding the end date.
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