Humbly, I'm neither a scientist nor a biblical scholar, but to come up with that number
as an absolute date that is no where to be found in the Bible is somewhat worth the crusade for.
In the Bible, as we know, there are rooms for us, the Christian, to show God of course,
that we love Him with our mind, too.
My sword is broken, so I'm nothing against your interpretation of the age of our planet, whatever number
you've come up with, but you must also realize that the creation of the first day by God
was not on Genesis 1:1, but on Genesis 1:3-5! (If you have the Bible, I suggest you read
Genesis 1:1-5 again and again, and again if you insist!)
The Primeval Atom theory (nickname the Big Bang) is a model of the universe
that included the moment of creation, a model that fitted the Scripture.
I'm not trying to tranquilize you with "In the Beginning there's a Big Bang!"
But anyway,
Did you know that it took a priest to explain to Einstein and the scientific community
that the whole universe had been created?
Trust In Jesus Only,
~Ren.