Kabankalan City Charter Day is observed in Kabankalan, Negros Occidental, Philippines, every August 2. This special non-working holiday commemorates the day when Kabankalan was converted from a municipality to a city in 1997. The name "Kabankalan" is derived from the local term for the bur tree, reflecting the area's history. Celebrations typically last for a week and feature official ceremonies, speeches, and an agro-industrial fair showcasing local products. Cultural events highlight the rich heritage of Kabankalan, culminating in the Udyakan Festival, which is one of the city's major festivals. The city, known for its significant sugar industry, has a history that includes Spanish colonization, American administration, and occupation during World War II, all of which have shaped its development into a major business hub in southern Negros.