Business Days Calculator
Count working days between dates, or find when a deadline really falls.
Using toolbook means you agree to our Terms and Privacy Policy.
On for a project running from one date to another; off for counting the working days left until a deadline.
Skips Saturdays and Sundays. No public holidays are excluded.
One date per line, like 2026-12-24, with an optional name after a comma. Use this for company closures, regional holidays, or any calendar not offered above.
Enter two valid dates.
Your files stay on your device
How to use it
Enter two dates to count the working days between them, skipping weekends and holidays. Or find the date that’s, say, 10 working days from today.
Two handy calculations in one. Count the working days between two dates — for a project, a notice period, or leave. Or switch modes to find the date that’s a number of working days away, like “10 business days from today”.
Pick a holiday calendar — US federal or UK (England & Wales) bank holidays — and they’re skipped automatically. Got company days off or other holidays? Add them in the box, one date per line.
Not everyone’s weekend is Saturday and Sunday. You can pick Friday–Saturday, Sunday only, or no weekend at all.
Just need plain calendar days, weekends included? The date difference calculator is simpler.
FAQ
How many business days are between two dates?
Enter both dates and pick a holiday calendar. Weekends and holidays are skipped, and the holidays it skipped are listed.
What date is 10 business days from today?
Switch to “add or subtract working days”, enter today and 10. Today itself isn’t counted.
Which holidays are included?
US federal holidays and England & Wales bank holidays. Add any others, like state or company holidays, in the box.
Why didn’t a holiday change the count?
It fell on a weekend, which was already skipped. If there’s a substitute weekday, that’s skipped instead and marked “observed”.
Can I use a Friday–Saturday weekend?
Yes, or Sunday only, or no weekend.
Should I include the end date?
Yes for leave or a project that runs through that day. No for counting days left until a deadline.
How it worksFor the curious
“How many working days between” counts days in a range. “What date is N working days away” walks forward day by day — you cannot divide, because the answer depends on the starting weekday and which holidays fall in the way. The start date itself is never counted.
Holidays are computed from their governing rules rather than stored lists. US federal holidays follow 5 U.S.C. § 6103, including Saturday holidays observed on Friday and Sunday holidays on Monday. UK bank holidays cover England and Wales, including the two Easter holidays and stacked substitute days at Christmas.
Other countries are deliberately not built in: a transcribed holiday table that quietly goes stale gives confidently wrong answers. Lines in the custom box that cannot be read as dates are reported, not dropped. For a repeating schedule, list every date in the series.