Are you a stickler about the correct use of time zones?

As a business traveler I feel obligated to keep up-to-date with time zones and Daylight Saving Time observances.

My sales people (even the travelers) don't.

When I send an appointment I typically say "Eastern" to indicate that I'm talking about the current Eastern observance. My coworkers like to use EST all year which I feel is incorrect.

Now we're talking about a client in AZ. AZ is technically MST or "Arizona Time" all year. Sales person talks about "this is the one place in AZ that doesn't observe DST". I'm confused by her comment and proceed to give her a diatribe about time zones for the second time in a week.

Does anyone else who regularly manages multiple time zones for scheduling and catching flights feel the same way?