There can be truth to both sides of the coin. The bible does state 6 days, but when you read it you need to understand that it is not just a written word - it is full of symbolism. Speak to various people that have studied theology and you will find that is the understanding of most people. So while the bible says the world was created in 6 days, it doesn't specify what a day is to Him. This means that 1 day in God's eyes could be 10,000 years in our time. The reason for 6 is because the number 7 is actually a very spiritual number and is referenced several times throughout the bible. :)