This event repeats every year forever
"You know that for almost the entire history of Western civilization, this month has been a holy time? The Druids, winter solstice, Hanukkah; the Romans converted Saturnalia into Christmas. Imagine that: Christ wasn't even born on this day, maybe not even 1,997 years ago. So no one knows for sure when the Millennium really begins and ends. Or how much time is left. It's the Midnight of the Century." - Peter Watts, Millennium
Don't forget to watch the following episode at Midnight!