The First day of Creation is the Spring equinox (Sunday)
The Seventh Day of rest is the Autumn Equinox (Saturday/Sabbath)
The Six days of creation is a Parralel to the Six months of growing and harvesting, First day God
First day: God creates light ("Let there be light!") - the first divine command. The light is divided from the darkness, and "day" and "night" are named.
This is the Spring Equinox when day and night are equal.
Second day: God creates a
firmament ("Let a firmament be...!") - the second command - to divide the waters above from the waters below. The firmament is named "heavens".
Its Raining, the upper water are falling below creating water, the Water that grows the Harvest.
Third day: God commands the waters below to be gathered together in one place, and dry land to appear (the third command). "Earth" and "sea" are named. God commands the earth to bring forth grass, plants, and fruit-bearing trees (the fourth command).
After the Rains the harvest begins to grow
Fourth day: God creates lights in the firmament to separate light from darkness and to mark days, seasons and years. Two great lights are made, and the stars.
The Days are becoming Longer/Night are shorter
Fifth day: God commands the sea to and birds to fly across the heavens He creates birds and sea creatures, and commands them to be fruitful and multiply.
Mating Season/ harvest is Multiplying
Sixth day: God commands the land to bring forth living creatures He makes wild beasts, livestock and reptiles. He then creates Man and Woman in His
"image" and "likeness". They are told to "be fruitful, and multiply, and fill the earth, and subdue it." Humans and animals are given plants to eat. The totality of creation is described by God as "very good."
Harvest is ready for plowing and eating, livestock feed on the harvest, men and women feed aswell. Human Mating at peak
Seventh day: God, having completed the heavens and the earth, rests from His work, and blesses and sanctifies the seventh day.
The Harvest has Finished, The Sun can rest from all the growing, the Land can rest for the next harvest.