Do You Believe May 21,2011?

I always thought that no man knew the time or the hour that Jesus will come back.And although the time is getting closer,I personally don't believe it will be May 21,no more than I believe it will be December 21,2012.Think about it,when it's May 21 in the US,it's already May 22 in Australia and still May 20 in other countries.Also,Harold Camping,the man that predicted this,also predicted the Rapture in 1994 and of course,it didn't come.So he was wrong once so I thought that makes him a false prophet.But I still doubt my beliefs and I want to know other Christians' opinions.Thank you in advance.