Sunrise and sunset in Boulder, MT
Sunrise7:28 amFirst light 6:55 am
Sunset4:56 pmLast light 5:29 pm
Daylight9 h 28 min2 min 31 s shorter
Solar noon12:12 pmSun highest in the sky
Sun times in Boulder today
The Sun rises in Boulder at 7:28 am and sets at 4:56 pm today, giving 9 h 28 min of daylight, 2 min 31 s shorter. It is highest at 12:12 pm. The sky is fully dark from 6:41 pm until 5:44 am.
Twilight
| Phase | Morning | Evening |
|---|---|---|
| Astronomical twilight begins / ends | 5:44 am | 6:41 pm |
| Nautical twilight | 6:19 am | 6:05 pm |
| Civil twilight (first and last light) | 6:55 am | 5:29 pm |
| Sunrise / sunset | 7:28 am | 4:56 pm |
A dash means the Sun does not reach that depth below the horizon today.
Golden hour and blue hour
| Light | Morning | Evening |
|---|---|---|
| Blue hour | 6:55 am – 7:08 am | 5:17 pm – 5:29 pm |
| Golden hour | 7:08 am – 8:14 am | 4:11 pm – 5:17 pm |
Golden hour: Sun between 6° above and 4° below the horizon. Blue hour: 4° to 6° below.
Sunrise and sunset for the next 30 days
| Date | Sunrise | Sunset | Daylight | Change | Dark from |
|---|---|---|---|---|---|
| Sat, Nov 14 | 7:28 am | 4:56 pm | 9 h 28 min | −2:31 | 6:41 pm |
| Sun, Nov 15 | 7:29 am | 4:55 pm | 9 h 26 min | −2:29 | 6:40 pm |
| Mon, Nov 16 | 7:31 am | 4:54 pm | 9 h 24 min | −2:26 | 6:39 pm |
| Tue, Nov 17 | 7:32 am | 4:53 pm | 9 h 21 min | −2:24 | 6:38 pm |
| Wed, Nov 18 | 7:34 am | 4:52 pm | 9 h 19 min | −2:21 | 6:37 pm |
| Thu, Nov 19 | 7:35 am | 4:51 pm | 9 h 17 min | −2:18 | 6:37 pm |
| Fri, Nov 20 | 7:36 am | 4:51 pm | 9 h 14 min | −2:16 | 6:36 pm |
| Sat, Nov 21 | 7:38 am | 4:50 pm | 9 h 12 min | −2:12 | 6:35 pm |
| Sun, Nov 22 | 7:39 am | 4:49 pm | 9 h 10 min | −2:09 | 6:35 pm |
| Mon, Nov 23 | 7:40 am | 4:48 pm | 9 h 08 min | −2:06 | 6:34 pm |
| Tue, Nov 24 | 7:42 am | 4:47 pm | 9 h 06 min | −2:04 | 6:34 pm |
| Wed, Nov 25 | 7:43 am | 4:47 pm | 9 h 04 min | −1:59 | 6:33 pm |
| Thu, Nov 26 | 7:44 am | 4:46 pm | 9 h 02 min | −1:57 | 6:33 pm |
| Fri, Nov 27 | 7:46 am | 4:45 pm | 9 h 00 min | −1:52 | 6:33 pm |
| Sat, Nov 28 | 7:47 am | 4:45 pm | 8 h 58 min | −1:48 | 6:32 pm |
| Sun, Nov 29 | 7:48 am | 4:44 pm | 8 h 56 min | −1:45 | 6:32 pm |
| Mon, Nov 30 | 7:49 am | 4:44 pm | 8 h 55 min | −1:41 | 6:32 pm |
| Tue, Dec 1 | 7:50 am | 4:44 pm | 8 h 53 min | −1:37 | 6:31 pm |
| Wed, Dec 2 | 7:52 am | 4:43 pm | 8 h 52 min | −1:33 | 6:31 pm |
| Thu, Dec 3 | 7:53 am | 4:43 pm | 8 h 50 min | −1:29 | 6:31 pm |
| Fri, Dec 4 | 7:54 am | 4:43 pm | 8 h 49 min | −1:25 | 6:31 pm |
| Sat, Dec 5 | 7:55 am | 4:42 pm | 8 h 47 min | −1:20 | 6:31 pm |
| Sun, Dec 6 | 7:56 am | 4:42 pm | 8 h 46 min | −1:16 | 6:31 pm |
| Mon, Dec 7 | 7:57 am | 4:42 pm | 8 h 45 min | −1:12 | 6:31 pm |
| Tue, Dec 8 | 7:58 am | 4:42 pm | 8 h 44 min | −1:07 | 6:31 pm |
| Wed, Dec 9 | 7:59 am | 4:42 pm | 8 h 43 min | −1:02 | 6:31 pm |
| Thu, Dec 10 | 8:00 am | 4:42 pm | 8 h 42 min | −0:57 | 6:31 pm |
| Fri, Dec 11 | 8:01 am | 4:42 pm | 8 h 41 min | −0:54 | 6:31 pm |
| Sat, Dec 12 | 8:02 am | 4:42 pm | 8 h 40 min | −0:47 | 6:31 pm |
| Sun, Dec 13 | 8:03 am | 4:42 pm | 8 h 39 min | −0:43 | 6:31 pm |
Sunrise and sunset by month
| Month (15th) | Sunrise | Sunset | Daylight |
|---|---|---|---|
| November 2026 | 7:29 am | 4:55 pm | 9 h 26 min |
| December 2026 | 8:04 am | 4:42 pm | 8 h 38 min |
| January 2027 | 8:07 am | 5:08 pm | 9 h 02 min |
| February 2027 | 7:31 am | 5:54 pm | 10 h 23 min |
| March 2027 | 7:41 am | 7:34 pm | 11 h 53 min |
| April 2027 | 6:42 am | 8:15 pm | 13 h 34 min |
| May 2027 | 5:55 am | 8:54 pm | 14 h 59 min |
| June 2027 | 5:36 am | 9:22 pm | 15 h 46 min |
| July 2027 | 5:51 am | 9:16 pm | 15 h 25 min |
| August 2027 | 6:27 am | 8:37 pm | 14 h 10 min |
| September 2027 | 7:06 am | 7:40 pm | 12 h 34 min |
| October 2027 | 7:45 am | 6:42 pm | 10 h 57 min |
2026 at a glance
- Longest day: June 20, 15 h 47 min of daylight
- Shortest day: December 21, 8 h 37 min
- Earliest sunset: 4:42 pm on December 10
- Latest sunrise: 8:11 am on January 1
Tonight the Moon is waxing crescent, 25% lit. Moonrise and moonset in Boulder.
Times are calculated for 46.2366, -112.1208 at sea level with a flat horizon and standard refraction, using the NOAA solar equations. Hills, buildings and elevation can shift the times you see by a few minutes. Sources and methods.