| Geyser | 1933-08-25 |
|---|---|
| Ebony | 1000, 1235 |
| Valentine | 1820 |
| Whirligig | 0720, 0840, 1000, 1120, 1245, 1410 |
| Values for Old Faithful Area | 1933-08-25 |
|---|---|
| Astronomical Twilight Begin | 03:50 |
| Nautical Twilight Begin | 04:29 |
| Civil Twilight Begin | 05:07 |
| Sunrise | 05:37 |
| Sunset | 19:13 |
| Civil Twilight End | 19:43 |
| Nautical Twilight End | 20:20 |
| Astronomical Twilight End | 21:00 |
| Moon Illumination | 17.59% |