| Geyser | 1935-07-12 |
|---|---|
| King | 0000-2359 |
| Values for Old Faithful Area | 1935-07-12 |
|---|---|
| Astronomical Twilight Begin | 02:29 |
| Nautical Twilight Begin | 03:27 |
| Civil Twilight Begin | 04:13 |
| Sunrise | 04:49 |
| Sunset | 20:07 |
| Civil Twilight End | 20:43 |
| Nautical Twilight End | 21:30 |
| Astronomical Twilight End | 22:27 |
| Moon Illumination | 81.38% |