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Business Day Calculator

Count the working days between two dates, or add and subtract business days from a date — skipping weekends and public holidays. Supports US federal holidays, UK bank holidays, custom weekends and your own days off.

100% Private US & UK holidays Custom weekends

Dates

Company holidays, Eid, Diwali or any other days to skip. Format YYYY-MM-DD.
Business days
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—
Calendar days
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Weekend days
—
Holidays skipped
—
Work hours
—
at 8 h/day

Holidays in this period

DateHolidayCounted as

What counts as a business day?

A business day (or working day) is any day that is not a weekend day or a public holiday. In most countries that means Monday to Friday, but you can change the weekend above — for example Friday and Saturday, or Sunday only.

Counting days between dates: by default both the start and the end date are counted, so Monday to Friday of the same week is 5 business days. Untick “Include start date” to count the way deadlines usually work.

Adding business days: the start date itself is not counted. Adding 5 business days to a Monday gives the following Monday, and adding 1 business day to a Friday gives the next Monday (or Tuesday if Monday is a holiday).

Holidays included

  • United States: the 11 federal holidays — New Year’s Day, Martin Luther King Jr. Day, Washington’s Birthday, Memorial Day, Juneteenth (from 2021), Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving and Christmas. When a holiday falls on a Saturday it is observed on Friday; on a Sunday, on Monday.
  • United Kingdom (England & Wales): New Year’s Day, Good Friday, Easter Monday, the early May, spring and summer bank holidays, Christmas Day and Boxing Day, with substitute days when they fall on a weekend, plus the one-off bank holidays of 2020–2023.

Frequently Asked Questions

A year has 260 to 262 weekdays (Monday to Friday), depending on which day it starts on. Subtracting the 11 US federal holidays leaves about 250 business days; in England and Wales, with 8 bank holidays, it is about 252–253.

Five working days after the day something happens, not counting weekends or public holidays. If you order on a Monday, 5 business days later is the next Monday.

Usually not, but some businesses and countries work on Saturdays. Untick Saturday in the weekend selector to count it as a working day.

Type the dates in the “Extra days off” box, one per line in the format YYYY-MM-DD. They are skipped just like public holidays.

No, the UK option uses the England and Wales list. Add regional holidays such as St Andrew’s Day or St Patrick’s Day in the “Extra days off” box.
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