DayplanlyHow deadlines are counted
In business-day mode, day 1 is the first business day after your start date. That's how “respond within 10 business days” or “net 30 business days” is normally read. Weekends are always skipped, and US federal holidays (observed dates) are skipped when the box is ticked. In calendar-day mode every day counts. You can then push the result to the next business day if it lands on a weekend or holiday.
Examples
- 10 business days after Friday, Oct 23, 2026 is Friday, Nov 6, 2026.
- 3 business days after Tuesday, Nov 24, 2026 is Monday, Nov 30, 2026, because Thanksgiving (Nov 26) and the weekend are skipped.
- Counting backwards works too. Use it to find the last day you can start a task and still finish on time.
Legal and contractual deadlines can follow their own counting rules. Always check the exact wording of your contract or the court rules that apply to you.
Want to count the working days in a range instead? Try the business days calculator.
Frequently asked questions
Does the start date count as day 1?
No. In business-day mode the count starts on the next business day after the start date. In calendar mode, adding 1 day gives the next calendar day.
What is 30 business days from today?
Enter today's date, type 30, choose “Business days” and the result appears instantly. It's usually about six weeks later, depending on holidays.
Can I subtract business days?
Yes. Choose “Before the start date” to count backwards, for example to find when work must begin.
Which holidays are skipped?
The 11 US federal holidays using their observed dates. Add any other closures in “Extra days off”.
Is this legal advice?
No. It is a date calculator. Courts and contracts may use different counting rules, so check the rules that apply to you.
Last updated 2026-10-26. Runs entirely in your browser; see our privacy note.