Phoenix rocks ... on the autumnal equinox!

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By Catherine Holland By Catherine Holland

PHOENIX -- Several years ago, 3TV viewer Gary Strausbaugh wrote a song about the autumnal equinox just for's April Warnecke.

It's a catchy, toe-tapping tune, and we trot it out once year to help April celebrate her favorite holiday -- the autumnal equinox.

This year's autumnal equinox is Saturday morning at 7:49 a.m. Pacific time. It marks the official start of fall, the time when days and nights are just about equal.

From here on, days will begin to get shorter until we hit the winter solstice -- the first day of winter and the shortest day of the year -- which falls on Dec. 21 this year.

This is also the time of year when the sun crosses the celestial equator so it rises due east and sets due west, which can be hard on drivers who are on the road at sunrise and sunset. 

Related: Cooler fall temps are almost here, but the sun is still dangerous -- for drivers