| Values for Old Faithful Area | 2025-07-12 | 2025-07-13 |
|---|---|---|
| Astronomical Twilight Begin | 03:31 | 03:33 |
| Nautical Twilight Begin | 04:29 | 04:30 |
| Civil Twilight Begin | 05:15 | 05:16 |
| Sunrise | 05:50 | 05:51 |
| Sunset | 21:07 | 21:06 |
| Civil Twilight End | 21:42 | 21:42 |
| Nautical Twilight End | 22:29 | 22:28 |
| Astronomical Twilight End | 23:26 | 23:24 |
| Moon Illumination | 97.91% | 93.76% |