Jonathan Gershuny is Professor of Economic Sociology and Co-Director at the Centre for Time Use Research, Department of Social Science, University College London. His previous books include After Industrial Society? and Changing Times.Oriel Sullivan is Professor of Sociology of Gender and Co-Director at the Centre for Time Use Research, Department of Social Science, University College London. Her previous publications include Changing Gender Relations, Changing Families: Tracing the Pace of Change.