No it doesn't, I've been raised Catholic, given a Catholic education, used to go to church every sunday (We try to go at least once a year now) and I support the Catholic side whenever there's a big flame war going on. This 2012 thing bears no significance to my religion, and from a logical point of view I reckon there's no way it's going to happen. So a few calendars said it, did you really expect them to write it all the way up to 55099 or something. And another thing, people have been saying the world will end since the dawn of time, what makes this 2012 doomsday crap any different.