To some people, time zones are just a fancy way of sounding important, episode 2

I have been guilty of this. I will sometimes use MST when I should use MDT due to muscle memory. And if I say MT it could be ambiguous when you consider Arizona (which doesn’t observe daylight savings).

I will not write “X city local time” though, I will take the extra time to make sure my timezone is correct.

I always use PT for Pacific Time to avoid the PST/PDT confusion. It has worked so far.