General Masaharu Homma declares the end of American Rule in the Philippines.
Martial Law is declared.
January 13 – All forms of opposition against the Japanese forces are declared subject to death penalty.
January 23 – An executive committee, composed of Filipinos, is formed by General Homma as a conduit of the military administration's policies and requirements.
February
February 17 – The Japanese Military Government issues an order adopting the Japanese educational system in the country.
February 20 – President Quezon and the war cabinet leave for the United States.
March
March 11 – General MacArthur leaves for Australia to take command of the South Western Pacific Area.
March 13 – The Commonwealth government is moved to the United States.
March 29 – The People's Anti-Japanese Army or Hukbong Bayan Laban sa Hapon (Hukbalahap) is organized.
April
April 9 – Bataan, under US commander General Edward King, being the last province, surrenders to the Japanese armies.
As per Act No. 2711 section 29,[2] issued on March 10, 1917, any legal holiday of fixed date falls on Sunday, the next succeeding day shall be observed as legal holiday. Sundays are also considered legal religious holidays. Bonifacio Day was added through Philippine Legislature Act No. 2946. It was signed by then-Governor General Francis Burton Harrison in 1921.[3] On October 28, 1931, the Act No. 3827 was approved declaring the last Sunday of August as National Heroes Day.[4]