Shalom!
One think I do not understand, what this prophesy has to do with the 7. 12 .2012? I am living in Israel and tomorrow evening Hanukka begins. Do you really think, we are at the end of time? Do you believe in the religion of the Mayan and her calandar? Than it would be the 21.12. Mat 24:36 tells us, that Jesus does not know the day of his second return, but do you think you know? He gives us all the signs, did they happen? Oh, you say Mat 24:29+30 Jesus is not telling us about the Rapture, but His second coming. Right, and in Mt 24:36  that day must have a context, which we find in Mat 24:29-31. If you relate Mat 24:36 to the Rapture, you must do the same to Mat 24:29-31.
God bless!   Benjamin