What is the difference with using PT (Pacific Time) vs PDT (Pacific Daylight Time) or PST (Pacific Standard Time)? When you write the time, 2:00pm PT, would that be considered incorrect because it is ...
I used to think PM/AM was correct, but at some point, I switched to using p.m./a.m. for reasons I can't recall. I know that in practical, casual writing, people tend to use whatever form is most ...