"This remarkable two-volume handbook demonstrates the unique value of time use data for addressing today’s most pressing social and policy challenges—from gender equality and care to health, energy, leisure, work and economic well-being. It combines methodological rigor with breadth of application. By bringing together leading voices from around the world, it solidifies the importance of time use research for evidence-based policymaking. I hope it serves as a catalyst for new generations of research and action."Ugo Lachapelle, President of the International Association of Time Use Research (IATUR) and Full Professor, Department of Urban Studies and Tourism, Université du Québec à Montréal, Canada