The equinox sun rises due east and sets due westIt’s not true that day and night are precisely equal on the day of an equinox. The sun rises due east and sets due west at the equinox. And that’s why the sun rises close to due east and sets close to due west, for all of us, at the equinox. Now we can say with reasonably high accuracy that the sun rises due east and sets due west on the day of the equinox. At the equinox, the sun rises and sets due east and due west.