Add or subtract 1–500 business days from a start date. Choose a weekend rule; the start date is not counted and public holidays are not excluded.
- Input: 23 October 2026 (Friday), add 1 business day, Saturday/Sunday weekends
- Result: 26 October 2026 (Monday). The start date is not counted; Saturday and Sunday are skipped.
- Input: 26 October 2026 (Monday), subtract 1 business day, Saturday/Sunday weekends
- Result: 23 October 2026 (Friday). Counting starts on the previous day and skips the weekend.
- Input: 31 December 2025, add 1 business day, Saturday/Sunday weekends
- Result: 1 January 2026. A weekday is counted even when it is a public holiday in your location.
What should I check?
Public holidays are not automatically excluded. Check your organization’s calendar separately.
Is the start date counted?
No. Counting starts on the next day when adding, or the previous day when subtracting. Enter a whole number from 1 to 500.
Which days count as weekends?
Choose Saturday/Sunday, Sunday only, or Friday/Saturday. Public holidays are not automatically excluded.
Does this calculate official or contractual deadlines?
No holiday or organizational closure calendar is applied. Contract, SLA and legal deadline rules are not evaluated; check those rules separately.