Officially, Japan has 16 national, government-recognized holidays. Public holidays in Japan are regulated by the Public Holiday Law (国民の祝日に関する法律 Kokumin no Shukujitsu ni Kansuru Hōritsu) of 1948. Beginning in 2000, Japan implemented the Happy Monday System, which moved a number of national holidays to Monday in order to obtain a long weekend. In 2006, the country decided to add Shōwa Day, a new national holiday, in place of Greenery Day on April 29, and to move Greenery Day to May 4. These changes took effect in 2007. In 2014, the House of Councillors decided to add Mountain Day (山の日 Yama no Hi) to the Japanese calendar on August 11, after lobbying by the Japanese Alpine Club. It is intended to coincide with the Bon Festival vacation time, giving Japanese people an opportunity to appreciate Japan’s mountains.
The national holidays in Japan are New Year’s Day on January 1, Coming of Age Day on Second Monday of January, National Foundation Day on February 11, Vernal Equinox Day on March 20 or 21, Shōwa Day on April 29, Constitution Memorial Day on May 3, Greenery Day on May 4, Children’s Day on May 5, Marine Day on Third Monday of July, Mountain Day on August 11, Respect for the Aged Day on Third Monday of September, Autumnal Equinox on September 23 or 24, Health and Sports Day on Second Monday of October, Culture Day on November 3, Labour Thanksgiving Day on November 23, and The Emperor’s Birthday on December 23.