The aim in the chapter is to introduce time-geography as a method for mobility research. Time-geography offers conceptual tools to grasp experiences, emotions and strategies in everyday life. Time-geography illustrates time–space movements and how restrictions and barriers impact on individual space–time movements. The reader is provided with examples of how to design and use time-geographical travel diaries, and how to combine the method with theories from social sciences. The chapter provides knowledge on how, when, where and why travel diaries should be used in mobility research.