| Values for Old Faithful Area | 1975-03-11 |
|---|---|
| Astronomical Twilight Begin | 06:06 |
| Nautical Twilight Begin | 06:40 |
| Civil Twilight Begin | 07:14 |
| Sunrise | 07:43 |
| Sunset | 19:23 |
| Civil Twilight End | 19:52 |
| Nautical Twilight End | 20:26 |
| Astronomical Twilight End | 21:00 |
| Moon Illumination | 2.74% |