CalcBox

Add or Subtract Days

Date after N days

Operation
Result date
26 Oct 2026
Monday
Calendar days
+30
Date
2026-10-26

How it worksMoves the date forward or back. Working days skip Saturdays and Sundays.

FAQs

How do I find a date 90 days from today?

Keep today as the start date, choose Add, enter 90 and pick Days.

What does “Working days” do?

It skips Saturdays and Sundays while counting, which is useful for business deadlines.

What happens when adding months to the 31st?

If the target month is shorter, the date moves to that month’s last day, for example 31 Jan + 1 month = 28 or 29 Feb.