@hamilton,
It appears that he got the dates wrong. In rechecking his calculations, the new "THIS TIME I GOT IT RIGHT" date for the Rapture and the Apocalypse together, is October 21 2011. Good thing, I hated that 5 mpnth wait between rapture and firey end of the planet.
So now we have 5 more months of debauchery and eating pistachios even though were not supposed to.