San Jose del Monte Foundation Day is observed in San Jose del Monte, Bulacan, Philippines, every September 10. This special nonworking holiday commemorates the city's conversion from a municipality to a city, which occurred following a cityhood plebiscite on September 10, 2000. The city's name translates to "Saint Joseph of the Mountain" in Spanish, reflecting its patron saint, Saint Joseph, discovered by local hunters in the area. The history of San Jose del Monte includes its establishment as a municipality in 1752 and its significant role during the Philippine Revolution and World War II. The day is marked by various local celebrations, acknowledging the city's growth and development over the years.