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Days between two dates

Count the days between two dates, business days without weekends and US, UK, Canada or Ireland holidays, or add days to a date.

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  • Windows, Mac, Android, iPhone

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About this tool

How many days until your vacation? How many business days for a notice period or a shipping deadline? Pick two dates and get calendar days, weeks and business days, with weekends and public holidays removed. You can also add 30 days or 10 business days to a date.

When to use it

Deadlines and notice periods

Net 30 payment terms, a two-week notice or a return window: find the exact date.

Working days

Count business days in a month or a project for planning, billing or PTO.

Countdowns

How many days until a wedding, an exam, a trip or a due date.

How to use

  1. Pick the calculation: days between dates, or add days.
  2. Enter the dates, or the start date and the number of days.
  3. Choose the country for holidays and add your own days off if needed.
  4. Read the result and the list of holidays in the period.

How it works

US federal holidays use their observed dates: when July 4 falls on a Saturday, Friday is the day off. UK bank holidays include substitute days.

Business days run Monday to Friday, without holidays; tick “Saturday is a working day” to count Monday to Saturday.

Everything is calculated in your browser: nothing is sent to a server.

Tips for best results

  • By default the end date is not counted: from the 1st to the 3rd there are 2 days. Tick the option to get 3.
  • Federal holidays do not cover state holidays such as Cesar Chavez Day or Patriots' Day: add them yourself.
  • For legal deadlines, check the exact rule: some deadlines move to the next business day.
  • In Canada, provincial holidays such as Family Day vary: add yours.

Common problems and fixes

The result is one day short

The end date is not counted by default. Tick “Include the end date”.

A state holiday is not removed

Only national or federal holidays are included. Add the date under “Add holidays or days off”.

The result is negative

The end date is before the start date, so the count goes backwards. Swap the dates if needed.

Frequently asked questions

How do I count the days between two dates?

Pick both dates: calendar days appear immediately, along with weeks and business days.

How many business days are there in a year?

About 260 weekdays, minus public holidays: around 250 in the US and 252 in England.

Which US holidays are included?

The 11 federal holidays, including Juneteenth, with their observed dates.

Is my data sent anywhere?

No. Everything is calculated in your browser.

How do I add 90 days to a date?

Choose “Add or subtract days”, enter the date and 90, and untick business days to count calendar days.

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Still stuck?

Ask on the forum: the category, the tool, your device sheet and the test result will be filled in for you.