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Working Days Calculator

Count working days between dates, or find the date a number of working days away.

Runs in your browserNo account neededFree
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Processing: This tool runs entirely in your browser. Your input and any file you open stay on your device — nothing is uploaded to a server.

How to use the working days calculator

  1. Fill in the fields — they start with a worked example.
  2. Read the answer, and the arithmetic shown beneath it.
  3. Copy the results, or adjust the inputs to compare scenarios.

About this tool

Contracts and service levels are usually written in working days, which makes them awkward to count by hand once a weekend or two is involved.

Saturdays can be included, since a six-day week is standard in some industries and countries. Public holidays are not deducted: they differ by country, region and year, and quietly applying one country's calendar would be worse than leaving them out. Subtract them yourself, or check against a local calendar for anything contractual.

Common uses

  • Working out a service level deadline.
  • Counting billable working days in a period.
  • Checking a notice period expressed in working days.

Frequently asked questions

Are public holidays counted?
No — only weekends are excluded. Holidays vary by country and region, so subtract the ones that apply to you.
Does the start date count?
When counting between dates, the start day is not counted and the end day is. When projecting forward, counting begins the day after the start date.

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