Traditional Culture Encyclopedia - Almanac inquiry - 1980 may 17 is it a leap in April or is it available? Is 80 a leap year?
1980 may 17 is it a leap in April or is it available? Is 80 a leap year?
May 17, the fourth day of the fourth lunar month, 1980 is a normal year.
The rules for judging leap years in the Gregorian calendar are: leap every four years, not leap in a hundred years, and leap again in four hundred years.
Simple calculation method of leap year in Gregorian calendar (a year that meets one of the following conditions is a leap year, and vice versa)
1. It is divisible by 4, but not by 100.
2. It can be divisible by 100 or 400.
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