With my tin foil hat on, this is what I say about that date:
It is said that on the day our solar system crosses the galactic equator. It is also said, when that happens, the earths poles will reverse. Because no intelligent being was alive during the last pole shift there is really no way to know what happens to the Earth itself when the poles reverse. Maybe nothing.
But a magnetic pole reversal could have some pretty harsh effects on our infrastructure.
Who knows?