A New York man spent his entire $140,000 life savings advertising his prediction that the world will end May 21, the New York Post reported Friday.

Robert Fitzpatrick, a 60-year-old Staten Island resident, said he spent at least that sum on 1,000 subway-car placards and ads on bus kiosks and subway cars.

They say, "Global Earthquake: The Greatest Ever! Judgment Day May 21, 2011."

In a self-published book, "The Doomsday Code," Fitzpatrick said the Bible offers "proof that cannot be dismissed."

"Judgment Day will surprise people. We will not be ready for it," Fitzpatrick said in an interview with the newspaper. "A giant earthquake will render the earth uninhabitable."

If you want to set an alarm clock, the quake will happen just before 6:00pm local time, he said.

"God's people will be resurrected. It is also the day that God stops saving anyone," he said.

Fitzpatrick hopes that he is one of the chosen ones, but he could not be really certain.

"There's just a little doubt," he said. "Most churches teach that if you just believe, you will be saved. It is not our choice. It is God's choice."