[supercat]

For three hours, New York will be ("was") four hours ahead of California, instead of three. Perhaps even more interestingly, for an hour New York, Indianapolis, and Chicago will all be ("were all") at different times.

[Lokibob]

A bar bet:

Ask the victim: What is the 2nd and 3rd shortest month of the year.
The victim will know that Feb is the shortest month, he MIGHT think that Feb in Leap year is the second shortest month with 29 full days, but in reality April is the second shortest month with 29 days and 23 hours on a regular year, and 3rd shortest in leap year.

Of course, Oct is the 2nd longest month of the year with 30 days and one hour.