Iloilo City Charter Day is observed in the city of Iloilo, Philippines, every August 25. This special non-working holiday commemorates the day when Iloilo was officially granted city status for the second time. Historically known as the Most Loyal and Noble City, Iloilo has a rich background, with its settlement established by Spaniards in the mid-16th century. The city evolved economically from a textile hub to a center for sugar production after the opening of its port to foreign trade in 1855. Iloilo was officially declared a city by royal decree in 1899 and later reestablished as a chartered city on August 25, 1937, by Philippine President Manuel L. Quezon. The celebration of Iloilo City Charter Day honors its historical significance and growth, reflecting its status as a first-class highly urbanized city in the Western Visayas region.