| Geyser | 1933-08-21 |
|---|---|
| Ebony | 1315 |
| Valentine | 0740 |
| Values for Old Faithful Area | 1933-08-21 |
|---|---|
| Astronomical Twilight Begin | 03:43 |
| Nautical Twilight Begin | 04:24 |
| Civil Twilight Begin | 05:02 |
| Sunrise | 05:32 |
| Sunset | 19:19 |
| Civil Twilight End | 19:50 |
| Nautical Twilight End | 20:28 |
| Astronomical Twilight End | 21:09 |
| Moon Illumination | 0% |