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Date calculator: days between dates, age and business days in one place

Count the days between two dates, work out an exact age or the business days with holidays, on one page. Free, no sign-up, nothing you type leaves the browser.

Free, no sign-up to use · what you type or add stays on your device · works offline · How it works

What do you want to calculate?
What do you want?

Days between the dates

30

4 weeks and 2 days

In months
—
Weekend days
8
Weekdays (Mon–Fri)
22

Business days with national holidays: use the business days calculator. →

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About this tool

Most questions about dates are one of three: how many days lie between two dates, how old someone is today, or how many working days a deadline really has. Here the three live together. Choose what you want to calculate at the top. The dates you type in days between dates go along to business days (and back), so you can compare calendar days with working days without typing them again. Business days skip weekends and Brazil's national holidays, and can also skip a state's holidays and your city's. Everything is worked out in your browser: nothing is sent to a server or kept in the address.

How to use it

  1. 1 Choose at the top: days between dates, age or business days.
  2. 2 Pick the dates (for age, the date of birth).
  3. 3 Read the result: days, weeks and months, the exact age and the next birthday, or the working days and the holidays in the period.
  4. 4 Switch at any time: the dates follow you between days and business days, and each one keeps what you typed while the page is open.

Frequently asked questions

Are the dates I type saved or sent anywhere?

No. They stay in your browser. They are not sent to a server, not saved and not put in the page address.

Do the days between dates, age and business days pages still exist?

Yes. Each one opens this same page on its own calculator.

Which holidays do business days skip?

Brazil's national holidays by federal law, including Black Consciousness Day (20 November) from 2024. You can also skip Carnival and Corpus Christi, a state's holidays and city holidays you type in.

Where are the countdown and the Pomodoro timer?

They have their own pages, because they run a clock instead of calculating dates. The holiday and vacation planner also has its own page.

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