In Arkansas you can drive with an out of state license for up to 30 days once you establish residency in Arkansas.
As a non resident you can drive for up to 6 months in Arkansas with an out of state license.
But after you establish residency or become a resident in the state of Arkansas, you have to get an Arkansas license to legally drive.
If you're a new resident of the state of Arkansas you must get your new Arkansas driver's license within 30 days of becoming an Arkansas resident.
And if you're just visiting Arkansas or temporarily working in Arkansas but you have your residence in another state you can legally drive for up to 6 months in Arkansas.
However some people have had to be in Arkansas over 6 months and still used their out of state license without any issue.
Also if you've become an Arkansas resident you need to transfer your vehicle registration to Arkansas within 30 days of becoming a resident.
But if you do own property in the other state and the residence in Arkansas is just a part time residence, then you can keep driving with your out of state license and registration.
I have a friend that lives in Kansas and has a place in Arkansas to get away for the winter and he keeps his registration and license in Kansas, which is where is primary residence is.
But if you become a permanent resident of Arkansas you must obtain your Arkansas driver's license and Arkansas vehicle registration within 30 days.