April Fools’ Day is on April 1, and in many places the traditional cutoff is 12 noon ; after that, pranks are generally considered over, though some people treat it as a full 24-hour day instead.

Quick Scoop

The most common answer is: April Fools lasts until midday on April 1.

Why the confusion?

  • Traditional rule: stop pranks at noon.
  • Looser view: some people and outlets treat it as lasting all day, or even joke about “April Fools’ Week.”
  • Different customs: the rule can vary by country and culture.

Simple takeaway

If you want the safest, most widely accepted answer: April Fools ends at noon on April 1.

If you want, I can also give you a one-line version for a post caption or FAQ box.