| Values for Old Faithful Area | 1992-03-18 |
|---|---|
| Astronomical Twilight Begin | 04:51 |
| Nautical Twilight Begin | 05:25 |
| Civil Twilight Begin | 05:59 |
| Sunrise | 06:28 |
| Sunset | 18:33 |
| Civil Twilight End | 19:02 |
| Nautical Twilight End | 19:36 |
| Astronomical Twilight End | 20:11 |
| Moon Illumination | 99.69% |