| Geyser | 1933-07-30 |
|---|---|
| Ebony | 0920, 1440 |
| Valentine | 1635 |
| Whirligig | 0610, 0750, 0930, 1110, 1250, 1530, 1615 |
| Values for Old Faithful Area | 1933-07-30 |
|---|---|
| Astronomical Twilight Begin | 03:02 |
| Nautical Twilight Begin | 03:51 |
| Civil Twilight Begin | 04:34 |
| Sunrise | 05:07 |
| Sunset | 19:51 |
| Civil Twilight End | 20:25 |
| Nautical Twilight End | 21:07 |
| Astronomical Twilight End | 21:56 |
| Moon Illumination | 51.13% |