Who knew? Well, Google did -- first entry, first search: https://greatdata.com/pdf/ac-tz.pdf (entries with an * have 2 time zones).

>Hi,
>
>I am wondering how many states in US have different time zones in the state itself and if there are different time zones per area code?
>
>If this is the case, how can we figure out the GMT date /time based on the area code and the time which most likely was recorded in local time?
>
>Thanks in advance.