The time and date of the spring equinox moves about six hours each year because the length of the year is about 365.25 days. See the dates and times in the article above. Then we have leap year so it gets re-set to the earlier date. Let's not forget we had an extra leap year in 2000 because 2000 is divisible by 400 which I suspect is the reason leap year occurred the earliest in 124 years.. There was not a leap year in 1900.
The time and date of the spring equinox moves about six hours each year because the length of the year is about 365.25 days. See the dates and times in the article above. Then we have leap year so it gets re-set to the earlier date. Let's not forget we had an extra leap year in 2000 because 2000 is divisible by 400 which I suspect is the reason leap year occurred the earliest in 124 years.. There was not a leap year in 1900.