That's not a date, it the time. It's simply an arbitrary time I chose after sunset on Dec. 22, 2023. Around 7 or 8 that evening you'll start being able to view it into the night.

While it's true that Jupiter does make his circuit through the signs once every 12 years as the king's crown cycle, what isn't so common is this particular close conjunction with Luna in Aries. If you miss this one, you won't get another chance to see it in your life.

And it always happens upon lunar month Tevet the 9th, which can range a bit in our Gregorian calendar from mid to late December. In 6 BC it happened to correspond to our December 17th. And Jupiter went stationary that very day, which is an exceedingly rare transit conjunction.