Using the concepts of “duration” and “temporal patterns,” this paper discusses how key steps during sampling change, if researchers take temporality seriously: When defining cases, scholars have to select a suitable temporal scale and reflect on possible changes of boundaries and properties of cases. When defining the population or field, researchers need to set an appropriate time frame and define periods within this time frame to be analyzed. When selecting the actual cases for analysis, researchers have to choose an appropriate sampling procedure, decide upon relevant periods of analysis as well as the number of points in time to be analyzed.