Sunrise & sunset in South Dakota
5 places in South Dakota, each computed from its own coordinates. Today is Tuesday, September 22, 2026; times below are local to each city.
First sunrise in the state
Sioux Falls, 7:14 AM local time.
Last sunrise in the state
Rapid City, 6:40 AM local time — 26 minutes after Sioux Falls in real time. The state also spans more than one time zone, so the clock times differ again.
Today across South Dakota
| City | Sunrise | Sunset | Day length |
|---|---|---|---|
| Sioux Falls | 7:14 AM | 7:24 PM | 12h 09m |
| Rapid City | 6:40 AM | 6:50 PM | 12h 09m |
| Aberdeen | 7:21 AM | 7:31 PM | 12h 10m |
| Brookings | 7:14 AM | 7:24 PM | 12h 10m |
| Watertown | 7:16 AM | 7:26 PM | 12h 10m |
About sunrise in South Dakota
The sun reaches Sioux Falls 26 minutes before Rapid City today — that gap is longitude, and it is fixed: the Earth turns fifteen degrees an hour, so every degree of longitude is four minutes of sunrise. South Dakota also spans 2 time zones, so two cities can see the sun at the same instant and read different clock times.
Eastern South Dakota, including Sioux Falls, is on Central Time. The western half, including Rapid City and the Black Hills, keeps Mountain Time.