Payroll, project deadlines, and SLA clocks all run on business days, not calendar days — and every team’s holiday calendar is different. Our new Business Days Calculator counts working days between any two dates and lets you drop in your own holidays.
- Inclusive range — both the start and end date count if they fall on a weekday, matching how most people mean “how many working days between the 3rd and the 7th.”
- Your own holiday list — paste one date per line
(
YYYY-MM-DD) and they’re excluded from the count, on top of the usual Saturday/Sunday weekend. - No double-counting — a holiday that happens to fall on a weekend doesn’t get subtracted twice; it’s already excluded as a weekend day.
- Full breakdown — see the business day count alongside total calendar days, weekend days, and how many holidays actually landed on a would-be working day.
- Private by default — the whole calculation runs in your browser; nothing you type — including your holiday list — is sent anywhere.
Try it on a plain Monday-through-Sunday week: 7 calendar days come out to exactly 5 business days, and adding one holiday inside that week drops it to 4.