| Geyser | 1996-12-01 |
|---|---|
| Giant Hot Period | 0000 A |
| Grotto | 0939 ie |
| Riverside | 0939 |
| Values for Old Faithful Area | 1996-12-01 |
|---|---|
| Astronomical Twilight Begin | 05:56 |
| Nautical Twilight Begin | 06:31 |
| Civil Twilight Begin | 07:07 |
| Sunrise | 07:40 |
| Sunset | 16:45 |
| Civil Twilight End | 17:17 |
| Nautical Twilight End | 17:53 |
| Astronomical Twilight End | 18:29 |
| Moon Illumination | 67.75% |