Astronomical observations South Dakota (United States)
| Sunrise | 07 h 07 am |
|---|---|
| Transition hour | 01 h 39 pm |
| Sunset | 08 h 12 pm |
| Starting of civil twilight | 06 h 37 am |
| Termination of civil twilight | 08 h 42 pm |
| Duration of sunshine | 13 h 04 |
| Sunrise | 11 h 13 pm |
|---|---|
| Sunset | 03 h 03 pm |
| Fraction illuminated | 45 % (lune gibbeuse) |