"The measurement of time is a human invention.
It exists only because humans agree on the ways time is measured...seconds, minutes, days.
When we change from daylight to standard time,
it's only because we agree on it.
But time itself doesn't need a clock or us.
Time flows measured or unmeasured.
It flows with or without us." ~Jok Church
This is a wonderfully accurate observation by Jok Church (of "Beakman's World" fame). While humans may think we control it, time requires no help from us - it marches onward with or without our wall clocks, wrist or pocket watches, bedside snooze buttons, cell phone clocks, calendars, Day-Timers and iPhone alarms. I'm comfortable with that...