Your assessment of what would need to be so in order to be timeless, is quite accurate. So, your logic is in tact...and I forgive you for thinking I am crazy...because if I didn't know better I would agree, it does sound crazy from a perspective of living in the world.
However, even science will at least speculate about time being an illusion (according to Einstein)...but suffers from the same problem of it seeming to defy logic.
Nonetheless, God tells us of the beginning and the end, and then eludes to His timeless reality by His on Word. So, we know that time is a part of creation, and God is not contained only within His creation. Which would indicate that time and all of creation is like a fishbowl of His making that does not share the ocean of His own reality surrounding it. And, why not, He's God? In that greater context, it is time then that becomes crazy, and God and timelessness, what is sane and logical.
But, hey, I'm just a witness and a messenger. You are welcome to role over and pull the covers over your head, put your fingers in your ears, whatever - your choice. But then, in all reality...I would have to say that is crazy.
But of whom? That really has become the issue.
In Genesis God rested on the seventh day but the length of the day that he rested was referenced within God's timeframe of reality, not man's. This is implied within the Genesis Account as over 1,000 years passed before there is any record of God's handiwork occurring after the end of the sixth day. I am not completely crazy but you have given your opinion on this subject matter without backing up your opinion with Scriptural references that support your craziness. No 1ax1v I mean.