My personal pet peeve is giving times in their local time zone when they know full well everyone is going to be in different time zones. Convert it to UTC so everyone can just worry about their offset.
If you just use UTC, then EVERYONE has to do some conversion in their heads.
(Unless some participants happen to live at the prime meridian, in which case using UTC as "the timezone" is equally as good.)
$ TZ=America/Chicago dateparse '2pm PT'
2pm PT: assuming PDT
1647464400 Wed Mar 16 16:00:00 CDT 2022
(You don't need to set TZ if your local time is already CT, of course.)[1] https://github.com/pflanze/chj-bin/blob/master/dateparse