WorldTimePortal

Working days, not calendar days

Business Days Calculator

Count the working days between two dates, or find the date a set number of business days away. Weekends and public holidays are left out.

US federal holidays (OPM rules: a Saturday holiday is observed on Friday, a Sunday holiday on Monday). State holidays and private employer schedules are not deducted.

Your result

22business days

Tuesday, 1 December 2026
to Thursday, 31 December 2026

Calendar days
31
Weekdays
23
Weekend days
8
Holidays on weekdays
1

Public holidays deducted

  • · Christmas Day

Check the full holiday calendar for regional holidays.

How the business days calculator works

A business days calculator counts only the days when offices are normally open. Here that means Monday to Friday, minus the nationwide public holidays of the country you choose: the United States, the United Kingdom, Canada, Australia or India. Holiday dates come from the same data as our 2026 and 2027 calendars, and every deducted holiday is listed under the result so you can check it.

Business days between two dates

Choose a start and an end date. The end date is always counted. The start date is counted too unless you untick the option, which is useful when you want the working days remaining after today. A full working week from Monday to Friday is 5 business days; from Monday to the following Monday it is 6.

Add or subtract business days

To find a deadline such as "10 business days from today", choose Add / subtract and enter the number. The start date is not counted, so 1 business day after a Friday is the next Monday, unless that Monday is a holiday. Subtracting works the same way backwards.

Holidays that fall on a weekend

When a public holiday falls on a Saturday or Sunday, many countries give a substitute weekday off. The calculator deducts the day actually taken off. For example, Christmas Day 2027 is a Saturday; the US federal holiday is observed on Friday 24 December 2027, and in the UK the bank holiday moves to Monday 27 December. New Year's Day 2028 is also a Saturday, so US federal offices close on Friday 31 December 2027.

Which holidays are included?

Only nationwide holidays are deducted. In the US these are the 11 federal holidays. In the UK they are the bank holidays shared by England, Wales, Scotland and Northern Ireland, so Easter Monday and the late August bank holiday, which are not bank holidays in Scotland, are not deducted. For India the calculator uses the Central Government gazetted holiday list for Delhi/New Delhi offices. State, provincial and regional days vary, so see the country calendars: US, UK, Canada, Australia and India.

Banks, courts, government agencies and employers may use their own definitions of a business day. For a legal or contractual deadline, check the rule that applies. To count every calendar day instead, use the date calculator; to find a week number, see what week it is.

Business days calculator FAQ

What is a business day?
In this calculator a business day is a Monday, Tuesday, Wednesday, Thursday or Friday that is not a nationwide public holiday in the selected country. Saturdays and Sundays are never counted.
Are the start and end dates included?
In Business days between dates, the end date is always counted, and the start date is counted unless you untick Count the start date. Monday 2 November to Friday 6 November 2026 is 5 business days with both dates, or 4 without the start date.
How does adding business days work?
The start date itself is not counted. Counting begins on the next weekday that is not a public holiday. Adding 10 US business days to Monday 21 December 2026 skips Christmas Day (Friday 25 December) and New Year's Day (Friday 1 January 2027) and gives Wednesday 6 January 2027.
What happens when a holiday falls on a weekend?
The calculator deducts the weekday that is actually taken off. US federal holidays on a Saturday are observed on the Friday before and on a Sunday the Monday after. In the UK, Canada and Australia, the calculator uses the substitute weekdays shown in our holiday calendars. A holiday on a weekend with no substitute removes no extra business day.
How many business days are in 2027 in the United States?
2027 has 261 weekdays. Twelve US federal holidays fall on weekdays or are observed on weekdays in 2027, including Friday 31 December 2027, the observed day for New Year's Day 2028. That leaves 249 federal business days.
Are regional or state holidays deducted?
No. Only nationwide holidays are deducted, because state, provincial and regional holidays differ by location. For example, Easter Monday is not a bank holiday in Scotland, so it is not deducted for the UK. Check the country holiday calendar for regional days.
Which years are supported?
Public holidays are available for 2026 and 2027. For other years, choose No holidays (weekends only) to count Monday to Friday.
Can I rely on the result for legal or contractual deadlines?
Use it as a planning aid. Courts, banks, government agencies and contracts can define business days and deadline counting in their own way, so check the rule that applies to you.