underquark, for awhile, some parts of Indiana in the US did and some didn't. It got a bit confusing since one town straddled the border with a neighboring county. Some of the people lived at one time and worked at another. I believe they straightened it up but I'm not certain.
I doubt that Arizona will ever change since it stays light quite late as it is. I also don't think most inhabitants of Arizona are smart enough to set clocks forward and back. I guess I'm included darn it.