I believe it's still celebrated on the solar planets, sometimes. And on Earth of course.

But I have to admit, I was a little surprised to hear you say you were going on a date for it. As far as I know, the celebration is more about friends and family and the harvest...and involves slaughtering pigs and eating them with chocolate.

[If Peter is pulling Jon's leg, his poker face is extremely good.]

Which is to say, I had no particular plans. It doesn't sound up my alley.