| Values for Old Faithful Area | 1975-03-13 |
|---|---|
| Astronomical Twilight Begin | 06:02 |
| Nautical Twilight Begin | 06:37 |
| Civil Twilight Begin | 07:10 |
| Sunrise | 07:39 |
| Sunset | 19:26 |
| Civil Twilight End | 19:55 |
| Nautical Twilight End | 20:28 |
| Astronomical Twilight End | 21:03 |
| Moon Illumination | 0.06% |