| Values for Old Faithful Area | 1975-03-12 |
|---|---|
| Astronomical Twilight Begin | 06:04 |
| Nautical Twilight Begin | 06:38 |
| Civil Twilight Begin | 07:12 |
| Sunrise | 07:41 |
| Sunset | 19:24 |
| Civil Twilight End | 19:53 |
| Nautical Twilight End | 20:27 |
| Astronomical Twilight End | 21:01 |
| Moon Illumination | 0.51% |