Speaking of not assuming God said regarding each day that there was evening and morning - doesn’t sound to me like eons of time. Plus how many animal ‘kinds’ were needed at the start of creation? See my prior post in this thread if you want some sound scientific explanations from Dr. Walt Brown and the hydroplate theory.
1) The phrase was used before day 4, the creation of the sun, moon, and stars. Kinda tough to think of evenings and mornings like you seem to imply without a sun rising and setting. Is it possible? Definitely. Anything is possible with God. But I question the passion with which young earthers demand an assumption of "truth" that's not expressly in the Bible text.
2) When I read Daniel again some time later (to be honest I couldn't remember exactly where today to type this reply and had to look it up) I read in Daniel 8:26: "And the vision of the evening and the morning which was told is true: wherefore shut thou up the vision; for it shall be for many days."
If you look in the whole chapter there is absolutely nothing saying that the prophetic vision will be implemented in a 24-hour period, or that the vision was given to Daniel during a 24-hour period, or anything like that. It's simply an old Hebrew expression (I read later the expression goes all the way back to the Semantic root language, but I can't find anything definitive it went back that far) to say a passage of time has occurred, or a change of season, or a change of an era. It'd be very analogous to Reagan and other leaders using the phrase: "It's morning in America". Even if Reagan had said that at 8PM everybody would have known what he meant and not torn him up over it being nighttime.