A lot of wackos on FR (and elsewhere) claim the Bible disputes this.
If you believe in a universal flood, and the impact that the waters from above and below caused, you can see that what 'scientists' claim was caused by billions of years of evolution, could indeed have occurred in a 40 day flood. The eruption of Mt. St. Helen's is evidence of that. What occurred there in a few hours from the water and lava flow duplicates the geologic strata of the Grand Canyon......which 'scientists' claim took millions of years to form (and although credible scientists know that it is impossible to have happened, our 'educational' institutions still proclaim that erosion caused it to form).
The point is, if you believe in an Omnipotent God, creation in 6 days would not have been difficult. It is perfectly reasonable then, (and not the thought of 'wackos') to believe in a young earth, especially when you know that the so-called dating methods of scientists are filled with error and assumption. (It also is possible to believe that the Creation story is allegorical, and the earth is indeed older than the chronological years listed in Scripture).
However, you have to have a whole lot of faith to believe the ridiculous claims of evolutionists. I prefer to have faith in the Creator, and the truth of HIS word.
They're making the same mistake as you, they don't realize the bible is meant to show a person how to know God, and it uses parables to do so.