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
Geography of South Dakota South Dakota's economy is tourism. Many travel to visit the national parks, state parks, and national monuments in the state, particularly those of the Black Hills region. South Dakota's location between national parks in the west and large cities to the east also contributes to the state's tourism and hospitality industry. In 2006, tourism provided an estimated 33,000 jobs in the state and contributed over two billion US$ to the economy of South Dakota. South Dakota has a total of 83,609 miles (134,556 km) of highways, roads, and streets, along with 679 miles (1,093 km) of interstate highways. Two major