Clean your clock
Clock-watcher
Stop the clock
Clock-in
Clock-out
round the clock
five O-clock shadow

Hickory Dickory Dock, the mouse ran up the clock

She's wound up tighter than an 8 day clock

Clocks slay time... time is dead as long as it is being clicked off by little wheels; only when the clock stops does time come to life.
William Faulkner

We spend our lives on the run: we get up by the clock, eat and sleep by the clock, get up again, go to work - and then we retire. And what do they give us? A clock.
Dave Allen

You can't turn back the clock. But you can wind it up again.
Bonnie Pruden

"We all run on two clocks. One is the outside clock, which ticks away our decades and brings us ceaselessly to the dry season. The other is the inside clock, where you are your own timekeeper and determine your own chronology, your own internal weather and your own rate of living. Sometimes the inner clock runs itself out long before the outer one, and you see a dead man going through the motions of living."
Max Lerner

Even a stopped clock is right twice a day.
Marie Von Ebner-Esenbach

A recent conversation: Dubya: Look at the clock, time is racing! Cheney: That's the second hand, George.
Dennis Miller

May your clock run slow, your heart fast, your bile over, your wife away, your nose always.

I'm really looking forward to seeing the clock on the playa. Great stuff!