No, it’s not Hanukkah. That starts December 22 this year. But it kinda is.
November 21, 164 BC by our current calendar is the day on which the Temple in Jerusalem was restored by Judas Maccabeus. The first service in the Temple didn’t come until 14 December.
The observation, of course, is tied to the Jewish calendar, so the solar days and the lunar days hardly ever line up. But, this is the solar calendar anniversary of that event.

I remember having to learn the Hanukkah song in elementary school.
Not this Hanukkah song.
“Tis the week of Hanukkah good cheer it is bringing…”
I remember when Adam Sandler was funny,