Here are my initial thoughts on Arizona....

[deanvogs]

I live in the Mountain time zone so if Tucson is in the Mountain time zone, it will be a 1-hour difference. You are correct about about Iowa and the ETZ though...it is 2 hours for me.

Here is what the deal is: "Most of Arizona does not observe daylight saving time, and during summer months is on the same time as Pacific Daylight Time, though it is still called Mountain Standard Time in Arizona."

So during the winter they are only an hour different from us, but now they are 2 hours....