For those who believe this rapture rumour, I saw an interview with the man who started this allegation, and he said it'll start at 6pm with an earthquake felt all over the world.
A lot of Christians are going to be very confused and ashamed tonight... or a lot of Non-Christians are going to be super fucked for eternity.
Not a lot. Premillenialist dispensiationalism is a loudmouthed minority, virtually unique to the USA (and recently, after the outbreak of Left Behind, other Western English-speaking countries) that just gets a lot of press. Those who actually believe in a particular time are a minority of that minority.