| Geyser | 2000-01-02 |
|---|---|
| Grand | 0429 E, 1717 E |
| Great Fountain | 0418 E, 1709 E |
| Values for Old Faithful Area | 2000-01-02 |
|---|---|
| Astronomical Twilight Begin | 06:14 |
| Nautical Twilight Begin | 06:49 |
| Civil Twilight Begin | 07:26 |
| Sunrise | 07:59 |
| Sunset | 16:54 |
| Civil Twilight End | 17:27 |
| Nautical Twilight End | 18:04 |
| Astronomical Twilight End | 18:39 |
| Moon Illumination | 16.95% |