From The Devil's Dictionary (1881-1906):
CLOCK, n. A machine of great moral value to man, allaying his concern
for the future by reminding him what a lot of time remains to him.
A busy man complained one day:
"I get no time!" "What's that you say?"
Cried out his friend, a lazy quiz;
"You have, sir, all the time there is.
There's plenty, too, and don't you doubt it --
We're never for an hour without it."
Purzil Crofe