Working time is a recurrent topic of study because the nature of work, its content, the conditions under which it is performed and the labour market itself keep changing. This report provides an overview of the recent evolution of working time duration and organisation in the EU and highlights the most important trends and differences between Member States. Through an in-depth analysis of data from the sixth European Working Conditions Survey carried out in 2015, it examines– from a gender and life course perspective –the links between working time patterns, work–life balance and working time preferences, on the one hand, and workers’ health and well-being on the other. Finally, the report explores the extent to which prevailing working conditions and working time patterns in EU Member States are sustainable in the long term.