Arizona doesn't observe DST, so we never have to change our clocks.

We remain on MST year round. One would think it would make things less confusing, but even though we don't change a thing, everyone around us does.
So, for part of the year, Arizona is one hour ahead of PST, one hour behind CST, and two hours behind EST. However, during DST, we are the same as PST, two hours behind CST, and three hours behind EST.
Mid-March to first of November, we are on the same time as California and Nevada, for example, but the rest of the time, we are one hour ahead. It really is confusing when everyone around you has time changes, but you don't.
