The working time survey for Germany by the Federal Institute for Occupational Safety and Health is based on a representative longitudinal survey of employed persons on questions of working time and potentially related stresses. It corresponds with various recent studies in the field of occupational science in which the relationships between working hours, work-life balance, overload syndromes, and health restrictions have been investigated. The survey includes 20,000 CATI interviews in a dual-frame design. After 2017, the second repeat survey was conducted in 2019, in which around 7,000 panelists and 3,000 first-time respondents were interviewed. Contents of the questionnaire include current occupation(s) or employment relationship(s), occupational demands and working conditions, duration, location, distribution, and variability of working time, breaks and rest periods, flexible working time models and working time accounts, commuting time and mobility, multiple employment, overtime and work-life balance, on-call and constant availability, and health and safety at work. infas has supervised and administered the panel since 2015 and is the continuous contact for panel participants.