From Ardrana

Gilvantir, the Circle, is one of the twelve zodiacal constellations in the sky of Ardrana. As such, it represents the 12th and last month of the Lanad Calendar. This month, which leads up to the Day of Change, is dedicated to no people or deity in particular, but instead to all of Ardrana's creatures. Those who have dedicated themselves to the LifeSpirit especially consider this a sacred time.