Mabon

For 2015 the September 23 equinox is at 08:20:34 UTC.

The holiday of the autumnal equinox, Harvest Home, Mabon, the Feast of the Ingathering, Meán Fómhair or Alban Elfed (in Neo-Druid traditions), is a Pagan ritual of thanksgiving for the fruits of the earth and a recognition of the need to share them to secure the blessings of the Goddess and the God during the coming winter months. The name Mabon was coined by Aidan Kelly around 1970 as a reference to Mabon ap Modron, a character from Welsh mythology. Among the sabbats, it is the second of the three Pagan harvest festivals, preceded by Lammas / Lughnasadh and followed by Samhain.

September Equinox

The September equinox is the moment when the Sun appears to cross the celestial equator, heading southward. Due to differences between the calendar year and the tropical year, the September equinox can occur at any time from the 21st to the 24th day of September.

At the equinox, the Sun rises directly in the east and sets directly in the west. Before the Southward equinox, the Sun rises and sets more and more to the north, and afterwards, it rises and sets more and more to the south. In the Northern Hemisphere the September equinox is known as the autumnal equinox. In the Southern Hemisphere it is known as the vernal or spring equinox.

Europe

The Roman celebration of the Fall Equinox was dedicated to Pomona, goddess of fruits and growing things.
The traditional harvest festival in the United Kingdom was celebrated on the Sunday of the full moon closest to the September equinox.

Neopaganism

Neopagans observe the September equinox as a cardinal point on the Wheel of the Year. In the Northern Hemisphere some varieties of paganism adapt Mabon traditions. In the Southern Hemisphere, the vernal equinox corresponds with Ostara.

The Lost Bearded White Brother