The Autumn Equinox is exact on Monday, September 22 at 8:59PM MDT.
Pluto also goes direct on this day. The Equinox is always a great time to RESET and to honor endings so that you can make room for new beginnings. The endings or completions are especially important during this season and especially in light of changes that may be occurring in your life. Acknowledge the changes and honor the endings that are coming about because of them.
It is always important to mark the equinox through a ritual of some kind. You can honor your endings through a burning or burial of a representation of them. Follow this with writing intentions for something new.
The New Moon is Wednesday, September 24 at 12:13 AM MDT (or the night of the 23rd).
Since this new moon is right on the heels of the Autumn Equinox, the same suggestions apply and you can honor both the new moon and the equinox at the same time.