| Values for Old Faithful Area | 1975-03-15 |
|---|---|
| Astronomical Twilight Begin | 05:58 |
| Nautical Twilight Begin | 06:33 |
| Civil Twilight Begin | 07:07 |
| Sunrise | 07:36 |
| Sunset | 19:28 |
| Civil Twilight End | 19:57 |
| Nautical Twilight End | 20:31 |
| Astronomical Twilight End | 21:05 |
| Moon Illumination | 4.62% |