| Geyser | 1967-01-14 |
|---|---|
| Grand | 1650 |
| Round | 1210 |
| Values for Old Faithful Area | 1967-01-14 |
|---|---|
| Astronomical Twilight Begin | 06:13 |
| Nautical Twilight Begin | 06:48 |
| Civil Twilight Begin | 07:24 |
| Sunrise | 07:56 |
| Sunset | 17:07 |
| Civil Twilight End | 17:40 |
| Nautical Twilight End | 18:16 |
| Astronomical Twilight End | 18:51 |
| Moon Illumination | 12.17% |