Chapter 13 lays out some ideas about how non-sequential time, rarely addressed in the sciences, might acquire significance in both mental and physical contexts. On the mental side, the experienced duration of the present is a key issue, which has been much studied in psychology, cognitive science, and the phenomenological tradition of philosophy. From the perspective of physics, related phenomena have been occasionally referred to by the notion of temporal nonlocality or temporal entanglement. Very recent developments linked to the investigation of such phenomena are sketched.