They say if at first you don't succeed, try and try again - and that's exactly what one doomsday theorist has done, who has set a new date for the end of the world.
Christian numerologist David Meade predicted the world was going to end on September 23 - it didn't.
He suggested verses in Luke 21:25 to 26 tell us that recent events, such as the solar eclipse and Hurricane Harvey, are signs of the apocalypse.
Meade has now revised that date and it's bad news for those with plans for November.
He insists October 15 will be the beginning of a horrific "seven year tribulation", as "Planet X", also know as Nibiru, triggers a series of volcanic eruptions, tsunamis and earthquakes.
"It’s the beginning. Ever since the Great American Solar Eclipse of August 21 we have been hit by a continued series of judgements."
One of several flaws in his theory is that the so called planet doesn't exist.
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"Nibiru and other stories about wayward planets are an Internet hoax," NASA said in a statement.
"There is no factual basis for these claims."
"If Nibiru or Planet X were real and headed for an encounter with the Earth … astronomers would have been tracking it for at least the past decade, and it would be visible by now to the naked eye.
He writes that a “tribulation period” is coming, which is described as seven years where the world will face disasters and plagues; outlined in the book of Revelations.
Meade claims this will be followed by a “Millennium of peace”.
NASA has since dismissed the claims, insisting the Planet X theory is merely a hoax because the planet doesn't exist.