how long did ww?2 last

World War II lasted about six years, from 1939 to 1945.

Quick Scoop: How long did WW2 last?

• Most historians date World War II from:
  • 1 September 1939 – Germany invades Poland, triggering war in Europe.

* **2 September 1945** – Japan formally surrenders aboard the USS Missouri, ending the war.

• That means the war ran for roughly six years (often described as “six years” or “six years and one day”).

In simple terms, if someone asks “how long did WW2 last?”, the standard answer is: about six years, from 1939 to 1945.

TL;DR: World War II lasted from 1 September 1939 to 2 September 1945, about six years.

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