| Values for Old Faithful Area | 2013-03-17 |
|---|---|
| Astronomical Twilight Begin | 05:53 |
| Nautical Twilight Begin | 06:28 |
| Civil Twilight Begin | 07:01 |
| Sunrise | 07:30 |
| Sunset | 19:32 |
| Civil Twilight End | 20:01 |
| Nautical Twilight End | 20:34 |
| Astronomical Twilight End | 21:09 |
| Moon Illumination | 27.44% |