Business Days Calculator
Count the working days between two dates, or find the date a number of working days away — skipping weekends and the holidays you choose.
None — add your own below.
Dates as YYYY-MM-DD, separated by commas — a company closure, a regional holiday.
How the business days calculator works
Every day in the range is checked: weekend days (you choose which) and holidays are left out, and what's left is business days. Both dates are counted unless you say otherwise.
Holiday sets are worked out from each country's rules, including substitute days when a holiday falls on a weekend. Each set says exactly what it covers — national holidays only, not regional ones.
You can also add your own holidays, like a company closure.
Examples
- 1–30 September 2026 has 22 weekdays; with US holidays it's 21 business days (Labor Day is 7 September).
- 5 business days after Friday 18 September 2026 is Friday 25 September.
Good for
- Contract and invoice deadlines
- Delivery and notice periods
- Project timelines
Frequently asked questions
- Are the start and end dates included?
- Both are counted by default, because that's how most notice periods and deadlines are read. You can leave either out.
- Which holidays are included?
- National public holidays for the country you choose, with substitute days. States, provinces and regions have their own, so add those as custom holidays if they apply to you.
- Can my weekend be Friday and Saturday?
- Yes. Choose any days as the weekend.
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