| Values for Old Faithful Area | 1933-07-13 |
|---|---|
| Astronomical Twilight Begin | 02:31 |
| Nautical Twilight Begin | 03:29 |
| Civil Twilight Begin | 04:15 |
| Sunrise | 04:50 |
| Sunset | 20:07 |
| Civil Twilight End | 20:42 |
| Nautical Twilight End | 21:28 |
| Astronomical Twilight End | 22:25 |
| Moon Illumination | 62.3% |