| Values for Old Faithful Area | 1933-08-13 |
|---|---|
| Astronomical Twilight Begin | 03:29 |
| Nautical Twilight Begin | 04:12 |
| Civil Twilight Begin | 04:51 |
| Sunrise | 05:23 |
| Sunset | 19:32 |
| Civil Twilight End | 20:04 |
| Nautical Twilight End | 20:43 |
| Astronomical Twilight End | 21:27 |
| Moon Illumination | 48.79% |