It says evening and morning in Genesis. Unless God was trying to mislead us, the implication is that it is, in fact, a 24 hour day (by our clocks).
I don't believe you ever answered yes or no to the question of whether you believe what God wrote on the Tablets of stone, specificially that the Lord made the heavens and the earth and all that in them is in six days. Now do you believe that? Yes or no?
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, refer 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.
(And since you weren't able to follow the chain of posts before, I'll spell it out for you: this is from Young-Earthism is NOT Biblical
No, God did not create the world in 6 24 hr days. The bible doesn't say that. Only your force-fitted, contradictory interpretation does. It's poor biblical skills like that that confuse so many people.