The best way to describe it would be as a taste. Today tastes like Middle School, probably 8th grade. It's comforting and familiar, and relaxing. But no one ever gets me when I say it "tastes" like a certain day/year or "feels" like some other time. Maybe it's an inverted Deja vu? Note: this doesn't happen often mind you, probably once every five months, maybe even one a year.
Alas, fair maiden, what is that curious contraption you are using?
It's called living in the past
Yeah yes, that IS it