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
History of South Dakota or Sioux Falls, or to other states. The Cattleman's Blizzard of October 2013 killed tens of thousands of livestock in western South Dakota, and was one of the worst blizzards in the state's history. History of South Dakota The history of South Dakota describes the history of the U.S. state of South Dakota over the course of several millennia, from its first inhabitants to the recent issues facing the state. Human beings have lived in what is today South Dakota for at least several thousand years. Early hunters first entered North America at least 17,000 years ago via the Bering