n/t

Google maps says about 29 hours-

http://maps.google.com/maps?q=atlanta,GA+to+phoenix,AZ&hl=en

We just did this drive a few days ago --- we left south GA at 7am on Saturday and got to Tucson, AZ at midnight on Sunday. We went pretty much right at or right over the speed limit since we have a car top carrier and we stopped once for 4 hours early Sunday morning and once per day for maybe an hour to picnic. Other than that we drove straight through and switched off driving. So that's about... 31 hours driving time I think (if I dont count the 4 hours it takes us to get from home to where you all live).