To be honest, I do not know how we got on the age of the earth? My argument is that 2 Peter 3:8 is being misapplied. It is not a creation verse. It is a second coming of Christ, in which the passage is entiltled, “The Day of the Lord Will Come” The verse applies moreso to us and not God. ‘Time’ is in man’s realm.
People will always misapply scripture to suit their own beliefs and traditions.