Evolution is something that I just haven't been convinced as being valid. I 100% agree with micro evolution but not macro evolution. As for what the bible says; the Bible is not a science book, it never tells us how God created and made things, just that He did do it. However, I do believe the Bible gives us hints at a sort of timeline, all-be-it in a very general way. I have rejected the traditional 6,000 year creation story that most christians have been taught and believed for centuries. I believe in the "gap theory" of Genesis 1.
Have you not read Exodus 20:11?
Exodus 20:11
11 For in six days the Lord made the heavens and the earth, the sea, and all that is in them, and rested the seventh day. Therefore the Lord blessed the Sabbath day and hallowed it.
So, this verse combines the creation of the heavens and the earth (Genesis 1:1) with the six days in which God made everything and His "resting" on the seventh day (Genesis 1:2-2:3). These words are part of the Ten Commandments written by the finger of God (but all Scripture is God-breathed).
Similarly, Jesus affirms a short duration of the creation.
Mark 10:6
6 But from the beginning of the creation, God ‘made them male and female.’
Matthew 19:4
4 And He answered and said to them, “Have you not read that He who made them at the beginning ‘made them male and female,’
If Adam and Eve were from the beginning of creation, creation couldn't have taken millions of years between the beginning and sixth day. He also defined the stars as the way for men to track seasons and years (fourth day).
That doesn't begin to address the spiritual issue of allowing millions of years of death prior to the creation of man and the fall of man. The gap theory, as all millions of years theories, assumes death before sin. But God said His creation was very good (Genesis 1:31). Humans weren't the only ones who died by sin--all creation suffered (Romans 8:20-22), including animals' dispositions (Genesis 9:2) and their diets (compare Genesis 1:30 with today's reality). These animals will be brought back to their Edenic state as Jesus heals the earth and removes the curse (Isaiah 11, Isaiah 65). In fact, Adam and Eve's sin resulted in God making the first blood sacrifice to provide them clothes (Genesis 3:21).