Drawing on time use data from the Child Development Supplement of the Panel Study of Income Dynamics, this study identified five different profiles of shared time between parents and young people at different stages of development. In childhood, all profiles had high rates of shared television viewing, but some were oriented toward in-home activities and others toward activities outside the home (e.g., cultural events). These latter profiles tended to be higher in socioeconomic advantage, and the young people in them tended to demonstrate greater gains in math, but not reading, achievement across the transition into adolescence. In adolescence, shared activity profiles favored low amounts of shared time between parents and adolescents across activities and disfavored shared time in public domains.