Live Clock
South Dakota Time Now
Split TimezoneCentral + MountainMt. Rushmore10 cities
Zones
2
timezones
Central & Mountain
Quick Answer
South Dakota spans TWO time zones — Central and Mountain.
East (Sioux Falls, Pierre) = Central Time. West (Rapid City, Deadwood) = Mountain Time (1h behind).
South Dakota Time Zone Guide
South Dakota is one of the few US states that spans two time zones. The eastern half (including Sioux Falls, Pierre, and Aberdeen) is in Central Time, while the western half (including Rapid City, Spearfish, Deadwood, and the Black Hills) is in Mountain Time — 1 hour behind.
Where Is the Timezone Border?
The timezone boundary roughly follows the Missouri River. Pierre (the state capital) is in Central Time, while Rapid City is in Mountain Time. When traveling west across SD, clocks go back 1 hour.
Related Tools
- Wyoming Time Now — Neighbor (Mountain Time)
- Minnesota Time Now — Neighbor (Central Time)