First Day of Spring is March 20
After a reasonably mild winter, Bozeman (and the rest of the Northern Hemisphere) will launch into Spring on March 20. Here are some basic facts about that magnificent day.
On March 20, 2015, at precisely 6:45 p.m. EDT, the sun will cross directly over the earth's equator. This moment is known as the vernal equinox in the Northern Hemisphere.
Because the sun is positioned above the equator, day and night are about equal in length all over the world during the equinoxes.
Early Egyptians built the Great Sphinx so that it points directly toward the rising sun on the day of the vernal equinox.