In spite of the overwhelming number of predictions that the world we end on a particular date, no one knows the exact date and time.
"But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only." —Jesus, from Matthew 24:36
"Unquestionably, despite the Bible being the eternal book, immutable, the cyclical book par excellence, in none of its verses has it been said that the year 1999 will be the precise date of the great catastrophe. Nonetheless, and despite not knowing the exact date of the dreadful impeding catastrophe since only the Father knows the day and time, we know from direct experience that “the times of the end have arrived and we are in them...” Our intention here is not to undertake a refutation against the supporters of that date, we just want to say that the Bible, despite containing in itself the revelation of all human history, this side and beyond, even in the own annals of all populaces, it has never been said that the Aryan root race (the present humanity) will perish in 1999. However, scholars in any way can ignore that the Bible is an extensive “verbatim” narration of the journey that takes place in every great cyclic generation. This humanity is now completely ripe for the supreme punishment; the end of this shameful humanity is approaching... Kabbalistic analysis shows that in the numbers two (2), five (5), zero (O), zero (O) is enclosed the secret of the great catastrophe. Whosoever has understanding let him understand, for there is wisdom therein. Unfortunately, people never know how to penetrate the deep meaning of certain Kabbalistic quantities; it is unfortunate that they interpret everything literally. —Samael Aun Weor, The Secret Doctrine of Anahuac
Nevertheless, there is much information available about what will happen. Study: