| Values for Old Faithful Area | 1933-08-09 |
|---|---|
| Astronomical Twilight Begin | 03:21 |
| Nautical Twilight Begin | 04:06 |
| Civil Twilight Begin | 04:46 |
| Sunrise | 05:18 |
| Sunset | 19:38 |
| Civil Twilight End | 20:10 |
| Nautical Twilight End | 20:50 |
| Astronomical Twilight End | 21:35 |
| Moon Illumination | 85.24% |