Oh, that part is easy. There are 37 counties in Indiana, I believe, that do not observe Daylight Saving Time. During the summer, they're on Eastern. In the winter, they're on Central.

Most of Arizona is the same way. In the summer, they're on (okay, not so easy, I can't remember if they're Central/Mountain or Mountain/Pacific..) Pacific, and in the winter, they're on Mountain.

Hrm.. checking this site , Indiana will start observing DST in April. Which will help some of the confusion.

"You need me. You wouldn't be much of a hero without a villain. And you do love being the hero, don't you. The cheering children, the swooning women, you love it so much, it's made you my most reliable accomplice." -- Lex Luthor to Superman, Question Authority, Justice League Unlimited