Night and day, sleep and wake, death and birth: All living organisms are subject to external biological cycles and inner clocks that influence our experience and behavior. But how exactly does this influence become manifest, and how can we deal with it? What are the mechanisms underlying such periodic recurrences? Or, more generally: Why is time so important – and what makes it so fascinating? The contributions to this volume represent a broad and multi-faceted approach not only to the chronosciences in the narrower sense, but also to the way we experience and deal with the passing of time in general. Authors from psychology, neuroscience, biology, medicine and philosophy approach the subject from many different angles, thus providing intriguing insights into a truly interdisciplinary research topic.