It’s funny that you have to drive for 2 days straight to the west (to the New Mexico border) to get to Mountain Time. Tennessee, of course, is a long state (about 8-9 driving hours from Memphis to Mountain City excluding the hour time change). The eastern part clearly should be, as it is, in Eastern Time. How far west that should extend is a debatable issue.
You probably know that Newfoundland has its own time zone, a half hour ahead of Atlantic Time, which has to be confusing as hell to adjust for.
Yeah, the Newfies have their own time zone—although maybe they share it with Venezuela now. I can’t imagine scheduling a conference call among people from Ontario, New Brunswick and Newfoundland.