Personally, I prefer Luxon's timezone handling. I get the appeal of not providing custom classes, but _actually changing the underlying timestamp_ to adjust for

Personally, I prefer Luxon's timezone handling. I get the appeal of not providing custom classes, but _actually changing the underlying timestamp_ to adjust for timezone has always caused nothing but trouble for me. It becomes an all-or-nothing system (you must use `date-fns-tz` to manipulate the dates) with nothing to actually enforce that.