When God said day did he mean an actually 24hour day?

My opinion?God doesn't exsist so arguing about what some bronze age semitic shamans atributed to a ficticious surce is pointless....Evidence for this is the absolute dearth of evidence for the exsistence of God, so in the same way that I don't believe in giant lime green giants that cause supernovas when they fart I do not believe in God.....Putting aside the issue of Gods putative exsistence for a moment if God did exsist the options are as I see it twofold...1)God created everything on a 6-7 day timescale with an appearance of age, he is therefore attempting to decieve us and cannot be the God of the bible as an omnibenevolent being would not willfully decieve...2)God created everything but that creation is not literally described in Genesis which is either allegory or mistakes were made by the human authors, the physical data we gather shows us the timescales involved...If I were a Xtian I would eliminate possibility 1) as it would contradict my ideas of an omnibenevolent God....Ergo if I where a believer it would have to be 2) that God did not mean a 24 hour day....