#creation took place in a series of six days which were the same as the days of 24 hours we now experience - James Barr

Probably, so far as I know, there is no professor of Hebrew or Old Testament at any world-class university who does not believe that the writer(s) of Genesis 1–11 intended to convey to their readers the ideas that:

We shall work not on the macrocosmic scale of the literary forms, but on the microcosmic scale of the lexical forms.

The problem here is not so much a historical one, more a terminological and philosophical one.