| Values for Old Faithful Area | 2025-04-30 | 2025-05-01 |
|---|---|---|
| Astronomical Twilight Begin | 04:18 | 04:16 |
| Nautical Twilight Begin | 05:02 | 05:01 |
| Civil Twilight Begin | 05:42 | 05:40 |
| Sunrise | 06:14 | 06:12 |
| Sunset | 20:26 | 20:27 |
| Civil Twilight End | 20:58 | 20:59 |
| Nautical Twilight End | 21:38 | 21:39 |
| Astronomical Twilight End | 22:22 | 22:23 |
| Moon Illumination | 8.82% | 16.62% |