I've assumed that the 6 days are not meant to be taken literally, and that they are not 24 hours as we know them as God is outside of time. I cannot see how the earth is 6,000 years old, to me it makes no sense. Look at the rocks, mountains , stars etc. I know God created them but did he create them to look old? Dinosaurs appear to have been from a different age to men. Not everything that has happened is recorded in the Bible but it doesn't mean it didn't happen. I can see why some people have an issue with is but I just find it difficult to comprehend.