worlds ending

If you take the date of 911 9-11-01 and add it to the date of the japanese earthquake 3-01-11 you get 12-21-12 the day the world is supposed to end, the mayan calender ends on this date and nostradamus predicted it too.
I don't exactly believe it but it is interesting to know and i think that if the world were supposed to end it would be most likely to happen on this date so it is possible but idk