Equinox-Mabon-Wicca/Pagan

Mabon, falling in September in the Northern Hemisphere, is a celebration of the second harvest during the autumn equinox.

Mabon, falling in September in the Northern Hemisphere, is a celebration of the second harvest during the autumn equinox. When day and night are equal, it marks a balance between light and dark.
http://www.crystalinks.com/autumn.html