Equinox? & Happy Equinox

Day and night are equal occurs twice a year, when the tilt of the Earth's axis is neither inclined nor the sun, the center of the sun is in the same plane as the Earth's equator.
In the northern hemisphere, the autumnal equinox occurs today, I clock 09.04 UTC.
One day equinox occurs twice a year, when the inclination of the axis of the Earth is not dated, more prone to self-
I always look forward to this date because it marks the change of seasons and the imminent arrival of the cool breeze and beautiful fall colors.
This also means it's time to start playing with the lights bike again, which happens to be one of my favorite fall / winter hobby.