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December 1991

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Washington Post timekeeping observation
by ado Dec. 31, 1991

Dec. 31, 1991

You probably already knew that the Gregorian Adjustment of 1582 added an extra day to every fourth year. What you forgot is that this doesn't apply to the turn-of-the-century years, excpet when they are divisible by 400. If you know this and the "off-sides" rule in hockey, you are a complete human being. December 30, 1991 Washington Post, page D5 --ado

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