This paper is asking about the actual used and appropriate data for recent substantive time use research. Emphasis is laid on both, macroanalytic and microanalytic approaches. However, the focus is on microeconomic approaches with topics on time use in the labour market (labour supply) and household production including the shadow pricing of unpaid work. Based on a structured survey about time use research and their data, actual topics, advantages and disadvantages of the data connected with the requirements on the research frontier and hints for further needs and developments are discussed.