The Sunwheel Calendar was created in the mid 1990’s. It uses the summer and winter Solstices as a pivotal point to divide the year into eight equal parts. The Summer Solstice is at midday on the 21st of June, the Winter Solstice is at midnight between the 20th and 21st of  December which in turn makes the equinoxes between days. The remaining four celebrations of Imbolc, Beltane, Lughnasadh and Samhain have whole days dedicated to them.

Morien Ravenstone
Sunwheel Grove Druid Order