Add Days to Date Calculator
Date calculator: add or subtract calendar or business days from a date to find deadlines, due dates and expiry dates.
Date + n days
How to use this calculator
- Type your input in the box.
- The result updates as you type.
- Use “Copy result” or “Copy link” to share it.
Enter a negative number to go back in time.
Business days skip Saturdays and Sundays but not public holidays.
Frequently asked questions
What date is 90 days after 6 November 2026?
4 February 2027.