| Values for Old Faithful Area | 1964-10-12 |
|---|---|
| Astronomical Twilight Begin | 04:58 |
| Nautical Twilight Begin | 05:32 |
| Civil Twilight Begin | 06:06 |
| Sunrise | 06:35 |
| Sunset | 17:44 |
| Civil Twilight End | 18:13 |
| Nautical Twilight End | 18:47 |
| Astronomical Twilight End | 19:20 |
| Moon Illumination | 36.91% |