| Values for Old Faithful Area | 1993-09-28 |
|---|---|
| Astronomical Twilight Begin | 05:40 |
| Nautical Twilight Begin | 06:15 |
| Civil Twilight Begin | 06:49 |
| Sunrise | 07:17 |
| Sunset | 19:09 |
| Civil Twilight End | 19:38 |
| Nautical Twilight End | 20:12 |
| Astronomical Twilight End | 20:46 |
| Moon Illumination | 94.23% |