Sun direction in Boulder (United States)
For On Now
On 22 September 2026, the sun rises at 06:49 and sets at 19:00 in Boulder, giving 12h4mn of daylight. Solar noon — when the sun is highest and shadows are shortest — is at 12:55. All times are local to Boulder.
Solar data for Boulder
06:22 — Dawn time in Boulder
06:49 — Sunrise time in Boulder
06:52—18:57 — Daylight time in Boulder
12:55 — Solar noon in Boulder
19:00 — Sunset time in Boulder
19:27 — Dusk time in Boulder
06:49 — Sunrise time in Boulder
06:52—18:57 — Daylight time in Boulder
12:55 — Solar noon in Boulder
19:00 — Sunset time in Boulder
19:27 — Dusk time in Boulder
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Time : |
| ... |
| Position : |
| 40.0149856,-105.2705456 |
| Timezone : |
| America/Denver |
| Daylight duration : |
| 12h4mn |
| Shadow length (1m) : |
| ... |
| Altitude : |
| ... |
| Azimuth : |
| ... |
Detailed sun information
00:00—05:18 — Night
05:18—05:51 — Astronomical twilight
05:51—06:22 — Nautical twilight
06:22—06:49 — Civil twilight
06:22 — Dawn
06:49 — Sunrise
06:52—18:57 — Daylight
12:55 — Solar noon
19:00 — Sunset
19:27 — Dusk
19:00—19:27 — Civil twilight
19:27—19:59 — Nautical twilight
19:59—20:31 — Astronomical twilight
20:31—00:00 — Night
05:18—05:51 — Astronomical twilight
05:51—06:22 — Nautical twilight
06:22—06:49 — Civil twilight
06:22 — Dawn
06:49 — Sunrise
06:52—18:57 — Daylight
12:55 — Solar noon
19:00 — Sunset
19:27 — Dusk
19:00—19:27 — Civil twilight
19:27—19:59 — Nautical twilight
19:59—20:31 — Astronomical twilight
20:31—00:00 — Night
Legend
Dawn — A time that marks the beginning of the twilight before sunrise. It is recognized by the presence of weak sunlight, while the sun itself is still below the horizon.
Sunrise — The moment when the top of the sun disc touches the horizon on sunrise.
Solar noon — The moment when the sun appears the highest in the sky, compared to its positions during the rest of the day.
Sunset — The moment when the top of the sun disc touches the horizon on sunset.
Dusk — A time that marks the end of the twilight after sunset and the beginning of darkness in the evening.
Sunrise — The moment when the top of the sun disc touches the horizon on sunrise.
Solar noon — The moment when the sun appears the highest in the sky, compared to its positions during the rest of the day.
Sunset — The moment when the top of the sun disc touches the horizon on sunset.
Dusk — A time that marks the end of the twilight after sunset and the beginning of darkness in the evening.
Sun path refers to the daily and seasonal arc-like path that the Sun appears to follow across the sky as the Earth rotates and orbits the Sun. You can display here the sun direction and the sunny hours in Boulder (United States). Accurate location-specific knowledge of sun path and climatic conditions is essential for economic decisions about solar collector area, orientation, landscaping, summer shading, and the cost-effective use of solar trackers. Enjoy !