It's not just birthdays, anniversaries or significant days of the calendar.
Consider also the ubiquitous counters on social media sites; the use of biometric technology in personal exercise regimes; the goal-oriented logic of structured weight-loss programs; the steady stream of statistics and sporting records published each week; the significance that accrues around the first 100 days of the US presidency.
In these and a multitude of other ways, we impose a kind of order on the passage of time.
