Business Days Calculator: Add or Subtract Working Days

Find the date that is a number of business days (Monday to Friday) after or before a start date. Weekends are skipped. Useful for delivery times, deadlines and payment terms.

Result
–
Calendar days in between–

How it works

Starting from the start date, the calculator moves one day at a time and counts only Monday to Friday. Saturdays and Sundays are skipped. Public holidays are not removed, so add extra days if a holiday falls in the period.

Example

10 business days after Monday 5 October 2026 is Monday 19 October 2026.

Frequently asked questions

Does it skip public holidays?

No. Only weekends are skipped. Add a day for each public holiday in the period.

Is the start date counted?

No. Counting begins the day after the start date.

How do I count business days between two dates?

Use the days between dates calculator, which shows the number of weekdays.

More free tools: Days between dates · Invoice due date calculator · All free tools

Public holidays are not excluded. Check local holidays.