Why aren't the years 2100 and 2101 leap years?

Generally leap years occur every four years—2012, 2000, 2004, and 1984—but since the formal to determine leap years dosen't align to most years before 2096–2100, 2104, or, 2108. Not every year is a leap year. read more

2100 is a century, centuries are divided by four hundred—given to exemptions regarding leap years—and since 2100 isn’t divisible by four hundred, it isn't a leap year. 2101 isn't a century and to determine it the year would have to be divided by four, and since 2101 divided by four dosen't work out accordingly isn't a leap year either. read more

Because to fine tune the synchronization of calendar year and the orbit of the sun we need to not have some leap years when we were expecting them. It takes the earth approximately 365.25 days to orbit the sun. If it were EXACTLY 365.25 then the years 2100, 2200, and 2300 would be leap years. read more

Usually we believe that a leap year falls once every four years, in that case why would 2100, 2200 and 2300 will not be considered a leap year. read more