Nature is a continuous circular flow of endings, re-birth, cause, effect, transformation, giving, receiving, becoming, ceasing, and re-becoming. All the seasons are not separate, they merge. Every season appears to presage the next.
The four divisions of the year:
Dawning Time - February 2nd to April 30th Time of Light - May 1st to July 30th Time of Harvest - July 31st to October 30th Shadow Time - October 31st to February 1st
In the Spring, life is viewed with youthful innocence. Summer, life is experienced. In the Fall, there is maturity and appreciation for all that was, is and will be. Winter, signifies old age, a period of rest and recuperation.
With the continual turn of the seasons, the planet enters a new stage of development, a new stage of life.
The Four Festivals - (Greater Sabbats)
the eve of February 2 - Imbloc the eve of May 1 -Beltane (May Day) the eve of August 1 -Lughnasadh the eve of October 31 -Samhain
Each year the astronomical dates of the four lesser Sabbats change.
To find out the exact date of each, consult an up-to-date astrological calendar or any other current calendar of days showing the exact dates of the equinoxes and solstices.