Hammer DeRoburt Day is observed in Nauru every September 25 to honor the country's first president, Hammer DeRoburt. Originally declared a public holiday in 2009 under the name National Youth Day, it was renamed in 2020. The celebrations focus on youth-related issues, including youth unemployment and obesity, and are primarily organized by the Nauru National Youth Council, which includes representatives from various NGOs. Events typically feature sports games and competitions such as volleyball, tug of war, and relay races, promoting healthy living among the youth. DeRoburt, who played a significant role in Nauru's history, was a school teacher and a key figure in the island's push for independence, which was achieved in 1968.