| Values for Old Faithful Area | 1952-10-01 |
|---|---|
| Astronomical Twilight Begin | 04:44 |
| Nautical Twilight Begin | 05:18 |
| Civil Twilight Begin | 05:52 |
| Sunrise | 06:21 |
| Sunset | 18:04 |
| Civil Twilight End | 18:33 |
| Nautical Twilight End | 19:06 |
| Astronomical Twilight End | 19:41 |
| Moon Illumination | 93.07% |