When: The Scientific Secrets of Perfect Timing(70)

18. Ting Zhang et al., “A ‘Present’ for the Future: The Unexpected Value of Rediscovery,” Psychological Science 25, no. 10 (2014): 1851–60.

19. Dacher Keltner and Jonathan Haidt, “Approaching Awe, a Moral, Spiritual, and Aesthetic Emotion,” Cognition & Emotion 17, no. 2 (2003): 297–314.

20. Melanie Rudd, Kathleen D. Vohs, and Jennifer Aaker, “Awe Expands People’s Perception of Time, Alters Decision Making, and Enhances Well-Being,” Psychological Science 23, no. 10 (2012): 1130–36. Helping others also expands our feelings of time, increasing our sense of “time affluence”; see Cassie Mogilner, Zo? Chance, and Michael I. Norton, “Giving Time Gives You Time,” Psychological Science 23, no. 10 (2012): 1233–38.