I think a more correct title would have been "date storage antipatterns" storing in UTC is fine as long as your clients are time zone aware and can convert to

I think a more correct title would have been "date storage antipatterns" storing in UTC is fine as long as your clients are time zone aware and can convert to local and send timestamps with time zone so that the server can convert back to UTC. the "options" provided are just examples of how not to do it.