Project Summary This continuing application requests five years of support for three in-person and two virtual conferences on time use, family inequality, and well-being. The application builds on the 2018 and 2020/1 conferences supported by NICHD and the sixteen-year history of successful time use conferences sponsored by the Maryland Population Research Center. Proposed conferences are critical venues for advancing knowledge and developing a diverse research community who have expertise in time use, family inequality, and well-being over contexts and groups. Facilitating research how COVID-19 has affected daily behaviors, interactions, and well- being is an urgent new need. There are also critical needs to advance knowledge on underexplored topics, including time as a pathway for racial-ethnic differences in time use and health and time use as a social determinant of health across life stages and contexts. Building the research community and facilitating innovative research on daily behaviors (parenting, food behaviors, physical activity, sleep), social interactions, and life experiences (well-being), which are key pathways between social factors and health, is needed to address persistent and emerging individual and population health disparities. The aims of the proposal are to 1) provide a forum for interdisciplinary research and dialogue by showcasing exemplary research and providing opportunities to engage with and develop innovative interdisciplinary research on time use and population health disparities; 2) identify underexplored and emerging issues in time use research by providing an inclusive environment to surface and target critical gaps in knowledge on time use, health, and well-being; 3) facilitate high-impact time use research and publications by providing opportunities to form collaborative research projects and facilitate effective policy communication on ways to apply time use and health research knowledge to improve effectiveness and scope of public policies and programs; 4) expand and support the research community by developing interest and expertise in using time use data to answer crucial questions about the health and well-being of families and children among diverse scholars and enhance substantive and methodological expertise among early career scholars from underrepresented groups to cultivate the next generation of time use researchers. To address these aims, the proposed conferences will provide a high-profile platform for innovative research and methodological approaches and facilitate scientifically rigorous, policy-relevant research on these topics across the life course, over time, and across policy contexts.