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 63 South Dakota Highway 63 South Dakota Highway 63 (SD 63) is a state highway in the central portions of the U.S. state of South Dakota. It connects U.S. Route 18 (US 18) south-southeast of Parmelee with the North Dakota state line north of McLaughlin. It consists of two disconnected segments. The southern segment begins at US 18 south-southeast of Parmelee and proceeds to a rural intersection just south of Norris. The much-longer northern segment, which is long, begins at an intersection with SD 44 just south of Corn Creek and ends at the North Dakota state line north of McLaughlin,