"More likely, the light refers to the angels, who aren't otherwise mentioned in the creation story, who were created."
True, this is a tough one, but God say the light, that it was good; and God divided the light from the darkness. And God called the light Day, and the darkness he called Night. and there was evening and morning."
?? There was not yet a sun to reflect light, and what was the darkness?
There are those who believe the light was from the radiant energy of the molting mass called into existence by a Divine mind. He gave meaning names to both by calling the light Day and the darkness, Night and set in motion the order of alteration of night and day generally.
So, what was the length of the first day comes into my investigation. How long was the darkness that preceded the light of this first Day One?
Seems this question could be answered if we knew precisely what the darkness was. Naturally, we do not know this.
The darkness was of indefinite duration seems obvious from the reading of the text. It has been asserted that this sequence of darkness and light, night and day, evening and morning, was determined by the Hebrew custom of reckoning time from sunset to sunset. Is it not more reasonable to think that, on the contrary, the Hebrew custom was derived from the Hebrew Cosmogony as handed. down from the remote past in Torah?
Maybe Rabbi Avraham can help us out here.....:)