| Values for Old Faithful Area | 2025-07-11 | 2025-07-12 |
|---|---|---|
| Astronomical Twilight Begin | 03:30 | 03:31 |
| Nautical Twilight Begin | 04:27 | 04:29 |
| Civil Twilight Begin | 05:14 | 05:15 |
| Sunrise | 05:49 | 05:50 |
| Sunset | 21:07 | 21:07 |
| Civil Twilight End | 21:43 | 21:42 |
| Nautical Twilight End | 22:29 | 22:29 |
| Astronomical Twilight End | 23:27 | 23:26 |
| Moon Illumination | 99.84% | 97.91% |