March 20, 2017
First Day of Spring 2017 (Northern Hemisphere)
Today is the spring equinox — when the day and night are equal in length. The word equinox comes from the Latin for equal and night. Almost everywhere in the world today, nighttime and daytime are each 12 hours.
We use the equinox to mark the change of seasons, as the balance of light shifts to make for longer days or nights. It usually means that it's time to hunker down for colder seasons, or time to rise and shine for warmer ones, as in the case of our furry friend the mouse! You may also notice that on the equinox, the sun rises directly in the east and sets directly in the west, whereas at other times in the year, it appears off-center if you're facing those directions. Today, we mark the equinox with a Doodle to celebrate the changing seasons.
Early sketches for the doodle