What will happen tomorrow and the next few days ?

Is 21 December 2012, End Of The World ? I was wondering... But a teacher also told 'us' that '' Every Moment Count '' mean time is precious even 1 second that moment pass. Everyone should make that moment count. Everyone in the world maybe want to find out whether the world will end ??? According to http://urbanlegends.about.com/od/errata/ss/Nasa-Predicts-Total-Blackout-Dec-2012.htm it say it might blackout for 3 day from 23-25 December ? Believe or not, as time will comes...