When God said day did he mean an actually 24hour day?

It would seem that it was a solar day. I don't say "24 hour day", in that the convential scientific wisdom is that the Earth's rotation rate in slowing, and a solar day has gotten shorter down through time.Anyhow, this assumes the Bible is the accurate and precise record of what "God said", something which I very much doubt is the case.Moose

Your right. That's what I intended to say, not what I did say.As I recall, the year was determined to be about 400 days back in the Devonian (approx. 400 million years ago). This was determined by studying daily and annual growth ring paterns in corals.Anyhow, (365.25 d/y / 400 d/y ) x 24 hr/d = 22 hr/d back in the Devonian.IF you project that back linearly, that would make the day about 19 hours 1 billion years ago (bya), 14 hours 2 bya, 9 hours 3 bya, 4 hours 4 bya, and 1.5 hours 4.5 bya.Now, I'll stop, and give everone a chance to say "Who cares".Moose

I have no real idea of the proper way to project that backward. I do suspect it would not be linear. I just thought I'd see where it might end up, if projected back to 4.5 bya. When I started crunching the numbers, I actually suspected the 4.5 bya day was going to turn out to be a negative number - well it didn't.Quoting myself:

quote:

---

IF you project that back linearly, that would make the day about 19 hours 1 billion years ago (bya), 14 hours 2 bya, 9 hours 3 bya, 4 hours 4 bya, and 1.5 hours 4.5 bya.

---

I very deliberatly made that IF in all capitol letters - as in the "big if".I've done no research on the "why". Atmospheric drag and tidal affects?Moose