Today is Mabon.
Mabon is the name used by some Wiccans for one of the eight solar holidays or sabbats of Neopaganism. It is celebrated on the Autumnal Equinox, which in the northern hemisphere occurs on September 23rd (occasionally the 22nd) and in the southern hemisphere is circa March 21.
Also called Harvest Home, the Feast of the Ingathering, or simply Autumn Equinox, this holiday is a 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 God during the winter months.
Among the sabbats, it is the second of the three harvest festivals, preceded by Lammas and followed by Samhain.