Here we have a chart explaining the meaning of "evening" and "morning" in the Bible. When the the sun is setting, that is, going down along the descending part of the blue curve, then it is "evening," and when the sun is going along the ascending portion of the curve, it is called "morning." The first evening (which we call afternoon) is the time of the "evening sacrifice," and is also the time we call "between the evenings," because it is between the beginning points of the the two evenings.

Morning actually begins after midnight, and is equivalent to the English usage of the word "morning," we should break down into "very early morning," "early morning," and "late morning." "Very early morning" is midnight to sunrise. Early morning is up to nine, and late morning is nine to noon.

When most people read Genesis 1 [Berasheet 1], "And there was evening and there was morning: one day," they mistakenly think that "morning" means "day" and "evening" means "night." But "morning" is never used for time after noon, and evening is never used for time after midnight, so these words do not mean day and night. If you think about day and night on a round world, you will realize that if we start with evening on one side of the world, that it will start with morning on the other side! So for some parts of the world, the first day began with morning and for some parts of the world it began with evening. See World Chart.