Sorry to burst your bubble, but the Hebrew for the phrase “evening and morning” or “evening, and there was morning” has usages not limited to 24-hour days. In fact, there are numerous usages in the Bible that this phrase, or variants of it, refers to continuous processes or activities. Exodus 18:13, 27:21, Leviticus 24:2-3 and Daniel 8:14,26 all use this phrase in a context of something that occurs on a continual basis over more than one 24-hour day. Like all young-earth talking points, the "evening and morning" claim fails in about 10 seconds of careful examination.
What does the Bible "really" say? Well, you have the superficial interpretation (young-earthism) which ignores context, language and other basic reading considerations. Young-earthers seem to have thrown-out any basic reading skills in trying to uphold their theory. And the "reinterpret it in order to make it more palatable to modern sensibilities" is a classic YEC talking point, sorry it doesn't fly. Old-earthism has been around for quite awhile, even before Darwinism had its current hold on science and thought (and when cornered, YECs can't seem to prove their "compromise" accusation).
Young-earthism is perhaps the best example of the scandel of the evangelical mind.