| Geyser | 1975-03-31 |
|---|---|
| No reports yet |
| Values for Old Faithful Area | 1975-03-31 |
|---|---|
| Astronomical Twilight Begin | 05:26 |
| Nautical Twilight Begin | 06:02 |
| Civil Twilight Begin | 06:37 |
| Sunrise | 07:06 |
| Sunset | 19:48 |
| Civil Twilight End | 20:17 |
| Nautical Twilight End | 20:52 |
| Astronomical Twilight End | 21:28 |
| Moon Illumination | 81.43% |