| Values for Old Faithful Area | 1933-07-19 |
|---|---|
| Astronomical Twilight Begin | 02:42 |
| Nautical Twilight Begin | 03:36 |
| Civil Twilight Begin | 04:21 |
| Sunrise | 04:56 |
| Sunset | 20:02 |
| Civil Twilight End | 20:37 |
| Nautical Twilight End | 21:22 |
| Astronomical Twilight End | 22:16 |
| Moon Illumination | 10.31% |