Time in South Dakota the zone.tab. Time in South Dakota South Dakota lies in both the Mountain Time Zone and the Central Time Zone. Mountain Time roughly contains the western half of the state, but not all of it. Rapid City is the largest city in the Mountain Time portion of the state. Central Time contains the eastern half of the state and roughly more of the state than the Mountain Time Zone and includes the state capital Pierre and the largest city, Sioux Falls. The 2 zones for South Dakota as given by zone.tab of the IANA time zone database. Columns marked *
South Dakota Highway 65 the final segment stretching from US 16 in Kadoka to the Nebraska border south of Martin. Construction of a new road led to the connection of the two northern segments by 1932. The segment south of US 16 was re-designated as an extension of South Dakota Highway 63 in 1929. The route of SD 65 is defined in South Dakota Codified Laws § 31-4-174. South Dakota Highway 65 South Dakota Highway 65 (SD 65) is a state route in north-central region of the U.S. state of South Dakota. It begins at U.S. Highway 212 east of Dupree, then runs northerly