Just for fun. Got this from another site.
I have 3 analog clock/watch: 1 wall clock, 1 alarm clock, and a hand watch.
My hand watch always give the correct time. My wall clock always late by 0.25 seconds per minute while my alarm clock always fast by 10 seconds per hour.
On the midnight inbetween 8th and 9th of may 2009, those 3 clocks show the same time. Before that night, when is the last time all 3 clock/watch show the same time?