<Li> divides the region legally defined as East Tennessee, except for four counties adjoining Middle Tennessee, from the rest of Tennessee . </Li> <Li> follows the border between Alabama (west) and Georgia (east), although Phenix City, Alabama and some nearby towns unofficially observe Eastern Time . </Li> <Li> divides the Florida Panhandle along the Apalachicola River and Intracoastal Waterway just west of Tallahassee, Florida . </Li> <Ul> <Li> divides the southwest portion of North Dakota from the rest of the state </Li> <Li> divides South Dakota roughly in half </Li> <Li> divides the western third of Nebraska from the rest of the state </Li> <Li> divides a very small portion of extreme western Kansas bordering Colorado (Greeley, Hamilton, Sherman, and Wallace counties) from the rest of the state (three other counties which border Colorado--Cheyenne, Morton, and Stanton counties--observe CST) </Li> <Li> follows the border between New Mexico (west) and Oklahoma (east) (although the zone legally begins at the Oklahoma--New Mexico state line, Kenton in extreme northwestern Cimarron County, Oklahoma unofficially observes MST) </Li> <Li> follows the border between New Mexico (west) and Texas (east) </Li> <Li> divides El Paso County, Hudspeth County, and a portion of northwestern Culberson County that includes eastern Guadalupe Mountains National Park from the rest of Texas </Li> </Ul>

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