Does All of Arkansas Have the Same Time?
Yes. Arkansas uses Central Time statewide. Current federal Eastern/Central and Central/Mountain boundaries do not divide Arkansas, so there is no county, city or regional time-zone split inside the state.
75 countiesArkansas has 75 counties, and all of them share the same Central Time rules.
No in-state zone lineYou do not change official time zones when driving between Arkansas regions or major cities.
One seasonal scheduleWhen Arkansas changes between CST and CDT, the whole state changes together.
Why Use America/Chicago for Arkansas?
America/Chicago is the practical IANA identifier for Arkansas civil time. It is not saying Arkansas is physically in Chicago; it is a ruleset that supplies the Central Time offset and U.S. daylight-saving transitions for the requested date.
This matters because “UTC−6” alone is not a complete year-round Arkansas time-zone description. Arkansas is UTC−06:00 during CST but UTC−05:00 during CDT, while America/Chicago automatically applies the correct seasonal rule.