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OZO Working Days

Free Working Days Calculator

Count the working days between two dates, or find the date a number of business days from now. Choose your weekend and skip public holidays.

  • Free forever
  • No signup
  • Instant results
Calculation

Weekend

Weekend days

Dates as YYYY-MM-DD, separated by commas or new lines. Not included in shared links.

Pick a start and an end date.

How to count working days between two dates

  1. 1

    Choose the calculation

    Count the days between two dates, or add or subtract days from a date to find a deadline.

  2. 2

    Enter the dates

    Pick the start and end dates, or the start date and the number of days to add (use a minus sign to go back).

  3. 3

    Set your weekend

    Choose Saturday and Sunday, Friday and Saturday, a single day, or no weekend at all.

  4. 4

    Add holidays

    Type any public holidays or office closures as dates, and they are skipped like weekends.

Deadlines, notice periods and payment terms

Many business dates are counted in working days: payment terms, delivery lead times, notice periods, project estimates and legal deadlines. This calculator counts them for you with your own weekend and holiday calendar, so you don't have to tick days off on a calendar.

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Frequently asked questions

How are working days counted?

Every day from the start date to the end date is checked: weekend days and the holidays you list are skipped, and the rest are counted as working days. Turn off "Include the end date" if the last day should not count.

What does adding working days mean?

It moves forward one business day at a time, skipping weekends and holidays, and the start day itself is not counted. So 1 working day after a Friday is the following Monday, and 10 working days after a Monday is the Monday two weeks later.

Can I use a Friday and Saturday weekend?

Yes. Choose "Fri & Sat" for countries such as Saudi Arabia, Kuwait and Qatar, "Fri only" or "Sun only" for a single weekly day off, or "None" to count every day.

Are public holidays included automatically?

No, because they differ by country, region and company. Paste the dates you need in the holidays box, for example 2026-12-25, and they are skipped. The list is not added to shared links.

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