| Values for Old Faithful Area | 1964-10-25 |
|---|---|
| Astronomical Twilight Begin | 05:14 |
| Nautical Twilight Begin | 05:48 |
| Civil Twilight Begin | 06:22 |
| Sunrise | 06:51 |
| Sunset | 17:22 |
| Civil Twilight End | 17:52 |
| Nautical Twilight End | 18:26 |
| Astronomical Twilight End | 19:00 |
| Moon Illumination | 78.5% |