I invite you to think about the consequenses of stopping the earth's rotation.
There are flood geologists who hope to prove the flood story with evidence.
What evidence do you suppose would be left behind by a stoppage in the earth's rotation?
What would you accept or suppose as evidence?
To lengthen a day, one does not have to stop the earth's rotation. Suppose there was a very close pass made by another planet. Mars for example. What would happen to earth's rotation, precession, and orbit?
Why is it that people of the ancient past knew about Mars? They didn't have the benefit of telescopes. I can't pick out Mars with the naked eye, can you? Could Mars have made a close pass by earth at one time?
If I recall correctly, the Bible speaks of past large scale climatic disasters.
Regarding the flood story. Do you really think the Colorado river carved the Grand Canyon? or could it have been MASSIVE water flow draining into lower areas we now call oceans?