| Geyser | 1931-05-04 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1931-05-04 |
|---|---|
| Astronomical Twilight Begin | 03:12 |
| Nautical Twilight Begin | 03:57 |
| Civil Twilight Begin | 04:37 |
| Sunrise | 05:10 |
| Sunset | 19:29 |
| Civil Twilight End | 20:02 |
| Nautical Twilight End | 20:42 |
| Astronomical Twilight End | 21:27 |
| Moon Illumination | 94.26% |