How can people predict when the world will end?

They cannot.

If The Owner of The House who builds His house on the sands of the children of Abraham and the rock CornerStone Had known at what time the theif was Coming in The Kingdom of God He 'would have' set a Watchtower and built a Hedge and Moat and Wall around it to protect it so that it would withstand the storms through the plagues and the red sea in The Resurrection and The Life.

The agnost clubs should know and prepare, for sure, for the coming commerce wars of the false prophet who implements the mark of commerce as though greater than God's provisions Divine. For which one(s) did what The Master asked? The one(s) who said they would quote Scipture, or the One(s) who placed their hands to work to do things? Those that love and practice evil will be called least in the Kingdom of God the lowest of servants called 'Cainaan', many who were least will move up to be called Greatest for having lower seats taken and Keeping Wedding Clothes and oils trimmed. A good tree bears its own kind of fruits in their seasons: the lesson from the fig tree which was withered on the way back from Temple visitation for the season was dry for this type of tree. Cursed is any person who hangs on a tree, so God covered them with skins; instead. (In the mean time.)

Jehovah-Nissi our StrongTower and The Wealth of nations, peoples, and languages.

For example 490 - 7 years and a delay is written in Daniel.

483 BC + 1960 (490 x 4) + 40 + 21 (60 minutes or years + 60 minutes or years = 120 Noah from 1900 plus 1 for minute men Forefathers example as the cry rang out during the 3rd watch of the night) =

666 x 3 = 1998 + 3 + 1/2 year or 6 months + 3 days, cycles, years + (40 days among nations x 10%) + ~(30 days to Pentecost x 10%) + 10 the times = 2021.5

1998 - 1335 ( 3 1/2 years for days, plus 3 plus 40 plus 2 plus 30 days) = 663 = 666 - 3 .

No one knows the time or the hour.

How can people even believe in such predictions?

Harold Camping is wrong and he will realize this May 22nd...

Bingo...you are correct

that one church is WRONG

Thanks for wasting 5 pts.