For many students, the summer is a time for family vacations, new friendships, new adventures in camps and summer learning programs, or taking summer classes to catch up or get ahead in school. For some families, affordable summer programs and camps can be a lifeline, while other families who may not be able to afford summer programs or activities struggle because they lose access to free and reduced-price school meals or because parents are not able to take time off from work to care for their children. Until now, a complete picture of what summer looks like was obscured by a lack of data. The 2020 edition of America After 3PM is designed to build a better understanding of how young people are spending their summers and to dig deeper into the types of summer experiences children across America have. This most recent national household survey of parents and guardians of school-age children includes responses from nearly 30,000 households regarding how their child or children were cared for during the summer of 2019. With the pandemic radically changing the landscape of summer 2020, as typical summer experiences were cancelled or changed to meet health and safety protocols, the Afterschool Alliance commissioned nationally representative follow-up surveys of parents and program providers to accompany America After 3PM data in order to learn how COVID-19 changed young people's summer experiences. "Time for a Game-Changing Summer, with Opportunity and Growth for All of America's Youth" reviews the America After 3PM summer 2019 findings, with 2020 parent and provider summer survey data included to shed light on what young people are experiencing during the pandemic. This data can be helpful as families, educators, and policymakers debate the best supports for young people after more than a year of pandemic conditions. Key findings from the study include: (1) Participation in summer programs soars as more than 9 in 10 parents report satisfaction; (2) Academic enrichment is important, but parents prioritize building connections, exploration, and being active in the summer; (3) Despite the increase in the number of families with a child in a summer program, there is high unmet demand during the 2019 summer and significant inequities; and (4) More parents than ever before support public funding for summer programs. [For the executive summary, see ED614120.]