Today is Mabon Day, similar to a thanksgiving ritual for Pagans and Wicans. Today's
vernal autumnal equinox is also a national holiday in Egypt and Japan. During the French Revolution, the fall equinox was the official start of a new year. But most of us know today simply as the first day of fall.
Scientifically speaking, day and night will be nearly the exact same length today. Equinoxes happen twice each year, in the fall and spring. The exact point of the equinox is when the sun is directly in line with Earth's equator. That occurred this morning at 3:04 a.m. Mountain time. Now, of course nights lengthen and days shorten at the higher latitutdes, while little change in day length occurs around the equator.