Today is a Latter-Day
“Tomorrow’s a Latter Day”
At certain points in the show, the term “Latter-day” seems to be referencing some future point or goal that the missionaries are looking forward to or working towards. Perhaps it’s meant to be synonymous with the Second Coming of Jesus Christ. While the term is not another way of saying “Second Coming,” it does reference the event.
Latter-day Saints believe that we are now living in the days directly preceding the Second coming of Jesus Christ. We don’t know exactly when it will come, or how soon it will arrive, but by looking at the signs foretold in the scriptures, we know it is fast approaching. Like watching the leaves of a fig tree sprout in order to know when summer is nigh, or (for those unfamiliar with fig tree horticulture) watching the leaves of deciduous trees turn bright colors in order to know when winter is nigh, we see the signs and know the Second Coming approaches.
Because mortal life, and mortal time, will end with the advent of the Second Coming of the Savior, this time directly preceding that coming is referred to as the “latter days”, or “last days”.