Personally, I take the whole day thing as symbolic.
90%+ of biblical scholars agree, the metaphor and the meaning is solid. The US has more than its share of orthodox literal interpreters.
The irony is even they are interpreting the bible, it is just that their interpretation they very as "the correct" interpretation. They are missing a lot about how much human input went into the compilation of the bible and writing and rewriting. The notion that there is no subjective human elements is simply historically incorrect.