the rapture has to happen first, and then 7 years of the anti-Christ's rule and he'll slowly lead the world into decay and then Jesus will come back and he'll be like "yo bitches this is what you get for being non-believing hoes one last chance at redemption" and then the world is destroyed.
that's how the Bible says it ends. with a few more extra details, but that's the gist.
They're saying 6:11am EST b/c that's when the winter solstice is. But at this whole thing. What really is going to happen is the serious believers probably killing themselves and doing other stupid ****.