On Wed, 15 Dec 2021 at 10:31, Joe Zeff <joe@zeff.us> wrote:
I'm at a convention in DC now, and I don't remember how to set my
laptop's timezone.

There are no "dumb" questions.  If you are using gnome, there is a
"Date & Time" entry in the Settings App  (on my system it is at the very
bottom of the list, maybe because it is rarely needed)
 
--
George N. White III