When: The Scientific Secrets of Perfect Timing

by Daniel H. Pink

Let’s begin with personality, including what social scientists call the “Big Five” traits—openness, conscientiousness, extraversion, agreeableness, and neuroticism. Much of the research shows morning people to be pleasant, productive folks—“introverted, conscientious, agreeable, persistent, and emotionally stable” women and men who take initiative, suppress ugly impulses, and plan for the future.33 Morning types also tend to be high in positive affect—that is, many are as happy as larks.34 Owls, meanwhile, display some darker tendencies. They’re more open and extroverted than larks. But they’re also more neurotic—and are often impulsive, sensation-seeking, live-for-the-moment hedonists.35 They’re more likely than larks to use nicotine, alcohol, and caffeine—not to mention marijuana, ecstasy, and cocaine.36 They’re also more prone to addiction, eating disorders, diabetes, depression, and infidelity.37 No wonder they don’t show their faces during the day. And no wonder bosses consider employees who come in early as dedicated and competent and give late starters lower performance ratings.38 Benjamin Franklin had it right: Early to bed and early to rise makes a person healthy, wealthy, and wise.