| Values for Old Faithful Area | 1976-03-12 |
|---|---|
| Astronomical Twilight Begin | 05:03 |
| Nautical Twilight Begin | 05:37 |
| Civil Twilight Begin | 06:11 |
| Sunrise | 06:40 |
| Sunset | 18:25 |
| Civil Twilight End | 18:54 |
| Nautical Twilight End | 19:28 |
| Astronomical Twilight End | 20:02 |
| Moon Illumination | 80.55% |