I like to think in word pictures. I think of the moment when He returns to earth and lands on the Mount of Olives as described in Zechariah 14:4: "On that day his feet shall stand on the Mount of Olives that lies before Jerusalem on the east, and the Mount of Olives shall be split in two from east to west by a very wide valley, so that one half of the Mount shall move northward, and the other half southward."
Here is an aerial view of the Mount of Olives. To the left of the pin is a valley and then another mount, the Temple Mount complex. North is to the top.
The scripture says the rupture will come from east to west, and half the split will move north and the other half, south, making "a very wide valley".
Some scholars believe that the valley is so wide and combined with the details in the Ezekiel verses depicting the geo-physical changes, that the temple will be pushed toward Shiloh. Shiloh is 27 miles due north of Jerusalem and was the location of the first tabernacle, for 400 years. Who knows...but the valley will be wide enough so that the river that runs from the temple will go to the Mediterranean Sea and the Dead Sea (which won't be dead anymore, lol).
Knowing that Christ's appearance on earth is such a singular event, of course the secular world wants to delete the BC-AD designation. So they came up with BCE, or Before the Common Era. Sure, the designation doesn't mention Christ, but they still count time from moment zero of the epicenter of His appearing. They can't delete THAT! LOL.
But they will continue to try. There is a prophecy in Daniel. It is just part of one sentence, but I think it is interesting. "He shall speak words against the Most High, and shall wear out the saints of the Most High, and shall think to change the times and the law; and they shall be given into his hand for a time, times, and half a time." (Daniel 7:25).
Many scholars believe that the antichrist, who is the 'he' spoken of here, will try to change the calendar to reflect worship back on himself, instead of onto Christ. I believe this also. But I was listening to Steve Hadley last night and he proposed something that I think makes sense as well, and adds a layer of understanding to the situation. In his sermon "Preview to Revelation," he preached on Zechariah 6. (July 1, 2012). Pastor Hadley mentioned that the antichrist will try to change times and dates and create a new calendar because he is moving the world toward a unified religion (one that will eventually point to himself). In wiping the calendar clean it also wipes out all the holy days. Christians mark Easter in April and Christmas in December, Jews have their calendar appointed holy days, etc. If a new calendar is instituted, all those memorializations will be changed, and as the antichrist will think, wiped from memory as they begin to worship him.
There is no erasing Jesus. His appearance was marked by shepherds, angels, and Kings; His death was marked by celestial signs and a large earthquake. The very calendar changed and we marked time from the moment of his death. His re-emergence will be marked with earthquakes. But the main earthquake that He represents is one that split the veil between this world and the next, rupturing time and space itself. Our calendar marks that rupture.
Nothing the secular people can do in juggling calendrical designations, and nothing the antichrist can do to think to change times and the law, will ever alter the fact that He is in control of time itself, and that His emergence into our world the first time and the second time are THE exceptional events in history.