The various denominations, sects, and cults have had many claims about when the end would come. William Miller predicted 1844 and failed, Seventh Day Adventists claimed "within one generation" from 1844 and have failed too, Jehovah's witnesses had 1878 and 1914 and 1975 and failed, we've heard from people that 1984 would be the end, 2012, and now 2015 and all have failed. They fail because they think that performing calculations based on 1,260, 2,300, 70*7 (490) and various numbers from bible passages will yield the last day or last year and they are wrong. The faithful know their master's voice and will not listen to these bogus calculations and the fake prophets who calculate them.