At what time did Japan's formal surrender ceremony conclude on September 2, 1945?

Japan's formal surrender ceremony concluded at 9:25 a.m. Japan Standard Time on September 2, 1945.

The ceremony took place aboard USS Missouri in Tokyo Bay. It began shortly after 9 a.m. and lasted approximately 23 minutes, with the Japanese and Allied representatives signing the Instrument of Surrender in a carefully choreographed sequence.

Mamoru Shigemitsu and Yoshijirō Umezu signed for Japan before Douglas MacArthur and the Allied representatives added their signatures. The document took effect when the signing process was completed, marking the formal end of World War II's hostilities with Japan.

This time should not be confused with the noon broadcast on August 15, when Hirohito announced Japan's acceptance of the Potsdam Declaration. August 15 is often called V-J Day in countries using the announcement date, while September 2 is the date of the legal surrender ceremony.