We have no reason to believe that there are dates inscribed in heaven or hell. We may yet destroy ourselves; we might scrape through. Confronting that uncertainty is the obligation of our maturity and our only spur to wise action. The believers should know in their hearts by now that, even if they are right and there actually is a benign and watchful personal God, he is, as all the daily tragedies, all the dead children attest, a reluctant intervener. The rest of us, in the absence of any evidence to the contrary, know that it is highly improbable that there is anyone up there at all. Either way, in this case it hardly matters who is wrong - there will be no one to save us but ourselves.
An excerpt from Ian McEwan's article about scriptural prophecy The Day of Judgment.