Pearl Harbor, Hawaii USA

At 07.38 local Hawaii time, the Japanese Navy starts its attacks on the American fleet at Pearl Harbour. Attacks are also made upon Singapore, Hong Kong and Malaya. (Publication time is adjusted to account for the time difference; in 1941 Hawaii is 10 hours 30 minutes behind GMT, but the UK is 1 hour ahead of GMT, so the time difference is 11 hours 30 minutes.)

At 23.35 Group HQ reports to Stradishall that the USA has declared war on Japan. Germany subsequently declares war on the United States of America.

Sources

Stradishall Ops Officers’ Log