Being On Time

Rolex had this problem of getting up late in the morning and was
always late for working the fuel docks at the marina.
The Marina owner was mad at him and threatened to fire him if he didn't
do something about it.
So Rolex went to his doctor who gave him a pill and told him to take
it before he went to bed.
Rolex slept well and in fact beat the alarm in the morning.
He had a leisurely breakfast, and motored down the ICW cheerfully to the marina.
As the first of the line of fishing boats was topping off, the marina owner came walking down the dock. "Boss", he said, "The pill actually worked!"
"That's all fine" said the marina owner, "But where were you yesterday?"