One of the most significant dates in the Philippine history is Independence Day because it marks the nation’s independence from the Spanish rule on June 12, 1898. We Filipinos celebrate it annually on June 12.
The Philippine’s Independence Day is a national holiday so government offices are closed. There are absolutely no classes in all schools. Many business establishments are closed except shopping centers. Public transport such as buses, passenger jeeps, and tricycles still operate but their routes may be limited due to the closure of streets used for parades. But since we are supporting US, we're still present at the office today. :D
The annual June 12 observance of Philippine’s Independence Day came into effect after past President Diosdado Macapagal signed the Republic Act No. 4166 regarding this matter on August 4, 1964. This Act legalized the holiday, which is based on the Declaration of Independence on June 12, 1898 by General Emilio Aguinaldo and Filipino revolutionary forces from the Spanish colonization. The Philippines’ flag was raised and its national anthem was played for the first time in 1898. However, liberty was short-lived because Spain and the United States did not recognize the declaration.
The 1898 Treaty of Paris ended the war between Spain and the United States. Spain surrendered the entire archipelago comprising the Philippines to the United States. The Philippines started a revolt against the United States in 1899 and achieved national sovereignty on July 4, 1946, through the Treaty of Manila. Independence Day was officially observed on July 4 until the Republic Act No. 4166, which set out to move the holiday to June 12, was approved on August 4, 1964.
Reference: Independence Day in Philippines