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 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 to the North Dakota border near McIntosh, where it continues as North Dakota Highway 31. It is about in length. When first designated in the 1920s, South Dakota 65 consisted of three segments, one stretching from the North Dakota border to the Grand River, one from an intersection with South Dakota Highway 18 in Isabel to an intersection with US 212 in Dupree, and