Time in South Dakota 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 * are from
South Dakota–South Dakota State football rivalry that have a game named "University of _ vs. _ State University." The majority of the series' games have been played in on either team's home stadiums in Vermillion (South Dakota) or Brookings (South Dakota State). Three games (1919, 1920, and 1933) were played on a neutral field in Sioux Falls. Since the 1979 season, the Coyotes have hosted their games at the DakotaDome; previously, they played at Darwin Inman Memorial Stadium. The Jackrabbits have played home games at Coughlin–Alumni Stadium starting from 1962 until the 2015 season. Starting in 2016, South Dakota State's football team will be playing in