Add or Subtract Days from a Date
Find the date a number of days or weeks from today (or any date) — for notice periods, visa validity, warranty expiry, deadlines and court dates.
Updated
Formula
End date = Start date ± (days + weeks × 7)
In 'weekdays only' mode, Saturdays and Sundays are skipped. Public holidays are not excluded.
Examples
90 days from 15 Oct 2026
15 October 2026 + 90 days = Wednesday, 13 January 2027
30 working days from 1 Nov 2026
1 November 2026 + 30 weekdays = Friday, 11 December 2026
6 weeks before 1 Jan 2027
1 January 2027 − 42 days = Friday, 20 November 2026
Important information
- For counting the days between two dates instead, use the Date Difference Calculator.
Frequently asked questions
What date is 90 days from today?
Leave the start date blank, enter 90 days and press Calculate.
Does it skip public holidays?
No — only weekends are skipped in weekday mode. Adjust for Eid and other holidays yourself.
Does the start date count as day 1?
No. Adding 1 day to Monday gives Tuesday.
Learn more
- Pregnancy Due Date: How It Is Calculated — How doctors estimate your due date from your last period, why pregnancy is counted as 40 weeks, how cycle length changes it, and what the trimesters mean.
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