Business Days Calculator - How Many Working Days Between Dates?

Quick navigation:

1. Calculate how many business days are between two dates
• How many days until a date without weekends
2. How long is N business days from today?
3. The business day and the week
4. Public Holidays in the US in 2025
• How many business days are left in 2025
• How many weekdays are left in 2025

Calculate how many business days are between two dates

If you wish to know how many work days you have until a job deadline, until retirement or even until your wedding, you simply need to enter the start date and the end date of the period you are interested in while in "Business days counter" mode. The result will show you all days until the said date excluding weekends (and official holidays if the option is selected). You can also choose whether to include the last day of the period in the final calculation.

For example, if you have to deliver a project by Dec 1, 2025, enter that date in the "end date" field, and if you are starting from today, leave the "start date" field as it is by default. Click "Calculate" and you will get the number of work days you will have. This way you will know how many business days are available for you to complete the job. If you will only be available to work on that project from Nov 1 onwards, just enter that as a starting date instead.

This working days calculator counts as business days all days between Monday and Friday, except if they are declared as official holidays at a national level. The calculator can account for country-specific holidays for the following countries:

• United States (Federal holidays)
• United Kingdom (Bank holidays)
• Canada (Public holidays - Statutory & Federal employees holidays)
• Australia (National holidays)

If the holidays calendar applicable to your country, state, region, or religious affiliation is different from the above, you will need to account for that by manually subtracting the number of days with such holidays from the result you get from our business days calculator. When you are aware of your country’s holiday calendar, just subtract the number of non-working days that fall within the timeframe of interest from the final result.

How many days until a date without weekends

If you want to find out how many days until a date without counting weekends, just enter the two dates and choose "Do not exclude" for the "Official holidays" option. This way the calculator will output how many weekdays remain until the given date while excluding weekends from the calculation.

For example, to find out how many days until Jul 4 without weekends, simply enter the current date as a "Start date", enter July 4-th, 2025 as an "End date", and see how many business days remain until that year's US Independence Day.

How long is N business days from today?

Calculating which date would be after a given number of working days or how long is N business days from today in calendar days is another common use for our tool. For example, to calculate how long is 5 business days from today, that is to add 5 business days to a date, simply select "Add business days" mode and then enter five in the field for how many days to add. If you want to see which date is 7 business days from today, do the same, but enter seven. The tool will also count the number of calendar days N business days from today, essentially doubling as a day counter.

To work with a date different from today's, just change the "Start date" field's date to the one you are interested in. For example, to estimate how long is 10 business days from a date in the future, just enter that date as a start date field and enter 10 in the next input to perform the addition. Remember to add one day for each holiday during that time, e.g. New Year's Eve, Christmas, Easter and others if the country you are interested in is not currently supported (just choose the country from the list otherwise).

Advanced tip: if you put a negative number in the "Add" field, that many weekdays will be subtracted from the start date!

The business day and the week

A business day, also known as a working day, is any official work day. In most regions this includes the days between Monday and Friday (including), also known as weekdays. It excludes the weekend and official holidays in the given country; these can be religious or national holidays. There are about 20 business days in a month.

But why do we work from Monday to Friday in Western countries? And why is a week seven days?

Although it is widely believed that the idea of a seven day week comes from Babylon and is based on the Moon cycles, there are those who disagree. Some claim that the Jewish people had their own completely separate reasons for creating a similar way of dividing the month. In defense of the latter theory there seems to be evidence to suggest that Judaists used such seven day-based cycles unrelated to the moon no later than the 6th century BC.

While we might never have a straight answer to how weeks were invented, where, when, and why; one thing is obvious – a large part of the world today uses weeks comprised of seven days, which also mark when the work days (also school days) and when the rest days are. This is usually applied alongside the Gregorian calendar, although not exclusively. What is also common between most countries is having two rest days in the week, although in different cultures it varies which days exactly those would be. In most of Western cultures the rest days are Saturday and Sunday, and the working days - Monday through Friday.

The two-day weekend was applied in the UK, US, and Canada by 1955. Multiple factors led to that and it took decades for the idea to be accepted by employers. The 40-hour work week only became the rule throughout Europe in the 70s, followed by the Middle East.

This business day calculator is not suitable for countries where the weekend starts on Friday and ends on Saturday, or where there is a one-day weekend.

Public Holidays in the US in 2025

Below is a calendar of the Federal holidays in the United States in 2025. All of these are non-working days and would be excluded from working day calculations if the "Exclude" option is selected.

US Public Holidays in 2025

Date	Name
Jan 01, 2025	New Year's Day
Jan 20, 2025	Inauguration Day
Feb 17, 2025	Presidents' Day
May 26, 2025	Memorial Day
Jul 04, 2025	Independence Day
Sep 01, 2025	Labor Day
Oct 13, 2025	Columbus Day
Nov 11, 2025	Veterans Day
Nov 27, 2025	Thanksgiving Day
Dec 25, 2025	Christmas Day

How many business days are left in 2025

In the US, as of Dec 23, 2025 there are 6 business days left until the end of the year. This count excludes both weekends and official US holidays.

How many weekdays are left in 2025

As of Dec 23, 2025 there are 7 weekdays left in 2025 without accounting for any type of official holidays. This is just the number of days remaining till years' end, without weekends.