On what date was Japan's surrender announcement broadcast in Japan during World War II?

Japan's surrender announcement was broadcast in Japan on August 15, 1945.

Emperor Hirohito's recorded address was transmitted shortly after noon Japan Standard Time. It announced Japan's acceptance of the Allied terms and instructed the Japanese people to endure the difficult consequences of ending the war.

The broadcast followed Japan's decision to surrender after the atomic bombings of Hiroshima and Nagasaki, the Soviet declaration of war, and intense debate within the Japanese government. Because of time-zone differences, many Allied countries reported the news on August 14.

The date is often confused with September 2, 1945, when Japanese representatives formally signed the Instrument of Surrender aboard USS Missouri in Tokyo Bay. August 15 marks the public announcement in Japan; September 2 marks the formal signing.