Which US States Have Two Time Zones? The Full List of 14

Last updated October 14, 2026

The US time zone lines follow county borders, rivers and old railroad divisions, not state lines. That leaves fourteen states with two clocks. If you call a business in Pensacola, Rapid City or El Paso, the state's main time zone can be an hour off.

The 14 states and where the lines run

The table shows the zone of most of each state, the part that uses the other zone, and what noon in the main part is on the other side. The last column is calculated from the time zone database.

Every split is one hour, and both sides change their clocks on the same Sunday in March and November. So the gap between the two halves of a state never changes during the year.

Why some lists say 13

Nevada is the case that changes the count. Almost all of Nevada is on Pacific time, but the city of West Wendover, on the Utah border, is officially on Mountain time. The US Department of Transportation moved it in 1999 because the city's daily life is tied to Utah and the Salt Lake City area. Lists that only count large areas leave Nevada out and arrive at 13.

A few other towns set their clocks to a neighbor without a federal rule. Jackpot, Nevada keeps Mountain time for its visitors from Idaho. Phenix City and a few other towns in eastern Alabama keep Eastern time because they sit next to Columbus, Georgia. Kenton, in the far west of the Oklahoma panhandle, uses Mountain time by local habit. Officially, Alabama and Oklahoma are each in one zone.

The splits that cause the most mistakes

• Florida. Pensacola, Destin and Panama City are on Central time. Tallahassee, the state capital, is on Eastern time, an hour ahead. Flights and hotel check-in times on the panhandle use Central time.
• Tennessee. The line runs through the middle of the state. Nashville and Memphis are on Central time, while Knoxville and Chattanooga are on Eastern time. A drive from Nashville to Knoxville moves the clock forward an hour.
• Indiana. Most of the state, including Indianapolis, is on Eastern time. The northwest corner near Chicago, including Gary, and the southwest corner around Evansville are on Central time. Indiana only started using daylight saving time statewide in 2006.
• Kentucky. Louisville and Lexington are on Eastern time. Bowling Green, Paducah and Owensboro, in the western half, are on Central time.
• Texas. El Paso is on Mountain time, the same clock as Denver and Albuquerque, while the rest of Texas is on Central time.

Smaller splits in the West and the Plains

In Idaho, Boise and the south are on Mountain time, and the northern panhandle, around Coeur d'Alene and Lewiston, is on Pacific time with Spokane. In Oregon, most of Malheur County, including Ontario, is on Mountain time with Boise. In the Dakotas and Nebraska the line runs from north to south, and the western parts, including Rapid City and Scottsbluff, are on Mountain time. Kansas has only four Mountain time counties, on the Colorado line. In Michigan, four counties of the Upper Peninsula that border Wisconsin are on Central time. Alaska is the outlier: most of the state is on Alaska time, and the far western Aleutian Islands use Hawaii–Aleutian time.

Arizona is a different case

Arizona is often listed with these states, but it is entirely in the Mountain time zone. What differs is daylight saving time. Most of Arizona stays on UTC−7 all year, so in summer it shows the same time as Los Angeles. The Navajo Nation in the northeast does change its clocks, and the Hopi Reservation inside it does not. Between March and November, a drive across northeastern Arizona can change the clock several times. See Phoenix for the current offset.

How to avoid mistakes

• Use the city, not the state. "Central time, Texas" is right for Dallas and wrong for El Paso.
• Check the county for small towns near a line. Phones set their clock from the network, and near a border they sometimes pick up the tower on the other side.
• When you write a time in an invitation, add the city: "10 a.m. Pensacola time" is clear, and "10 a.m. Florida time" is not.

The US time zones guide covers the six main zones and the territories. To compare a split-state city with your own, use the Meeting Planner with Chicago for Central, Denver for Mountain or New York for Eastern.

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