| Values for Old Faithful Area | 1964-05-12 |
|---|---|
| Astronomical Twilight Begin | 02:54 |
| Nautical Twilight Begin | 03:43 |
| Civil Twilight Begin | 04:25 |
| Sunrise | 04:58 |
| Sunset | 19:40 |
| Civil Twilight End | 20:13 |
| Nautical Twilight End | 20:56 |
| Astronomical Twilight End | 21:44 |
| Moon Illumination | 0.25% |