Aces Day is observed on the first Wednesday in May, specifically on May 6 this year, and is part of Project ACES (All Children Exercise Simultaneously). This initiative aims to encourage children across the United States to engage in physical activity together, addressing the rising obesity rates among youth. Schools and community centers organize workout sessions that can include activities like walking, running, cycling, yoga, and aerobics, often accompanied by music to make it more enjoyable. The sessions typically last between 15 to 45 minutes, and if weather conditions are unfavorable, they are moved indoors. Aces Day coincides with National Physical Fitness and Sports Month and is recognized as the "world's largest exercise class," as millions of children participate in this movement toward fitness.