In classical Jewish tradition, the Messianic Age – a thousand years of peace and harmony – must begin no later than 220 years from now: the Hebrew Year 6000.
The Hebrew calendar begins at the creation of the world, “Anno Mundi” (AM). Medieval rabbinic calculations put that year at 3761 BCE. By that count, we are currently in the year AM 5780.
Also by Jewish tradition, each thousand years of creation correspond to a day of the week. The first thousand years were Sunday, the next thousand Monday, and so forth. So we have been in the cosmic equivalent of a Friday for the last 780 years. Does it feel like a Friday to you?
Two hundred and twenty years from now, in AM 6000, we’ll enter the equivalent of Saturday. And, of course, Saturday is the Shabbat, the Sabbath, the holiest day of the Jewish week. In Jewish tradition, the messiah is supposed to usher in a thousand years of peace, harmony, and general good times, the so-called Messianic Age.
The Talmud, Midrash, and Zohar all put two and two together and conclude that latest possible date for the start of the Messianic Age is the thousand years corresponding to Shabbat. Which means that the Year 6000 is the deadline for the appearance of the messiah and the beginning of the age of peace.