| Geyser | 2000-04-01 |
|---|---|
| Giant | 0000 |
| Values for Old Faithful Area | 2000-04-01 |
|---|---|
| Astronomical Twilight Begin | 04:22 |
| Nautical Twilight Begin | 04:58 |
| Civil Twilight Begin | 05:33 |
| Sunrise | 06:02 |
| Sunset | 18:51 |
| Civil Twilight End | 19:20 |
| Nautical Twilight End | 19:55 |
| Astronomical Twilight End | 20:31 |
| Moon Illumination | 13.16% |