Daylight Spending Time

When I was in junior high school my mother played a
good trick on my father. She was always an early
riser (as in 5:00 a.m.). My father had to get up at
7:00 for work. She went around the house and set all
the clocks to 9:25 or so, then ran frantically into
his room, and woke him up yelling "John! John! You
overslept!" He was just about out the door before she
broke down and let him in on the joke.