Add Business Days to Date

Pick a start date, enter how many business days to add or subtract, choose your work week and holidays, and press Calculate date. You get the resulting date, a calendar, and every weekend and holiday skipped.

Try an example
Public holidays to skip

About this business day calculator

Contracts, shipping estimates, court deadlines, and service agreements often say “within 10 business days”. Counting that on a calendar is error-prone, especially around holidays. This calculator steps through the calendar one day at a time from your start date, counting only working days for the work week you choose and skipping public holidays for any of 13 countries, plus your own days off. You can count backwards to find a deadline before a date, and decide what happens when the start date itself is a weekend or holiday. The result comes with a calendar, milestone dates, and a list of every day that was skipped and why.

How to add business days to a date

  1. Enter the start and the count. Pick the start date, type the number of business days, and choose to add or subtract. Press an example to try it.
  2. Set the rules. Choose the work week, the countries whose holidays to skip, any custom days off, and how to treat a start date that is not a business day.
  3. Press Calculate date. Read the resulting date, check the calendar and milestones, and review the days that were skipped.

Frequently asked questions

Is the start date counted as day one?

No. The count starts on the next business day, so 1 business day after a Monday is Tuesday. This is how most contracts and couriers count.

What if the start date is a weekend or holiday?

Choose how to handle it: count from the date as it is, or first move to the next or previous business day. The result explains when the start was moved.

What does 10 business days usually mean?

Two working weeks, which is normally 14 calendar days, or more if a public holiday falls in between.

Can I count backwards?

Yes. Choose Subtract to find the date a number of business days before the start date, for example the last day to send a notice.

Which holidays are included?

National public holidays for the countries you tick, with weekend substitution rules. Regional holidays and company closures can be added as custom days off.