Nothing would give more meaning to one's life than being a player in a cosmic event, and millennianists grasped at straws to find proof of their greatness, using numerology* to bridge the gap to the past, fudging as they went along. They ignored one of the true sayings of "Jesus" Acts 1:7 " --it is not given to you to understand times and seasons--" . Even physicists labor on that one. Is time a river flowing by or are we moving through time? Measuring time is the easy part, unless you start overlapping.
*** numerology: 360x400=144 000