Every morning for years, at about 11:30, the telephone
operator in a small Sierra-Nevada town received a call from
a man asking the exact time.

One day the operator summed up
nerve enough to ask him why the regularity.

"I'm foreman of the local sawmill," he explained.

"Every day
I have to blow the whistle at noon so I call you to get the
exact time."

The operator giggled, "That's really funny," she said.

"All
this time we've been setting our clock by your whistle."