| Values for Old Faithful Area | 1976-10-24 |
|---|---|
| Astronomical Twilight Begin | 06:13 |
| Nautical Twilight Begin | 06:47 |
| Civil Twilight Begin | 07:20 |
| Sunrise | 07:50 |
| Sunset | 18:24 |
| Civil Twilight End | 18:53 |
| Nautical Twilight End | 19:27 |
| Astronomical Twilight End | 20:01 |
| Moon Illumination | 1.65% |