spin

To those really interested in what "between the evenings" means, since Sheshbazzar hasn't condescended, a traditional Jewish view of the term is that the first "going in" (that's what the term for evening actually means) is when the sun sets and the second is when the light has gone, when it is dark. Hence "between the evenings" refers to the time between those two points, sunset and dark.

Others have tried other suggests but they all seem further away from the meaning of "evening" than this.


spin

Chili

If every day has two evenings it will have two mornings for the same reason and nothing has changed. It is an interesting distinction that makes us look at the sun twice as the giver of light.