I had a dude at work remind me a few weeks ago that the world was going to end on September 23rd. He was saying that all sorts of things were going to happen - the CERN large hadron collider was going to open up a hellhole where all these demonic beings were going to flood Earth and Obama and the Pope were due to have a meeting about it. And there was going to be an earthquake, an asteroid impact and the Rapture was going to take place! I wonder if he was disappointed/confused when he woke up on the 24th and still found himself here!
I thought it mentioned something in the Bible about the rapture coming 'like a thief in the night' and that no one would know the exact date. Just goes to show the power of what a few YouTube videos can do to the mindsets of some of the faithful!