Sunrise and sunset times in Boulder, CO
Check out today's and tomorrow's sunrise and sunset times in Boulder, CO, United States, as well as the whole calendar for October 2024.
Today
October 6, 2024 . Current time: 5:29:58 am
First light at 6:36:09 am
Sunrise time: 7:01:49 am
Sunset time: 6:36:06 pm
Last light at 7:01:46 pm
Day length: 11 hours, 34 minutes
13 hours, 6 minutes left for today's sunset in Boulder
Moon will rise on Oct 6 at 09:57 AM
Moon will set on Oct 6 at 07:18 PMMoon phase: 🌒 Waxing Crescent (12%)Tomorrow
October 7, 2024
First light at 6:37:09 am
Sunrise time: 7:02:50 am
Sunset time: 6:34:31 pm
Last light at 7:00:12 pm
Day length: 11 hours, 31 minutes
Tomorrow will be 2 minutes shorter than today in Boulder
Moon will rise on Oct 7 at 11:01 AM Moon will set on Oct 7 at 07:56 PMMoon phase: 🌒 Waxing Crescent (25%)
- Boulder, Colorado
- Latitude: 40.014984
- Longitude: -105.270546
- Time zone: Mountain Time MDT
Shortest day in Boulder, CO
The shortest day of the year will be in %d months and 13 days., during the winter solstice on December 20, 2024, with a daylight length of 9 hours and 22 minutes.Longest day in Boulder, CO
The longest day of the year was around 3 months ago, during the summer solstice on June 20, 2024, with a daylight length of 15 hours and 4 minutes.
October 2024 - Boulder, Colorado - Sunrise and sunset calendar
Sunrise and sunset times, civil twilight start and end times as well as solar noon, and day length for every day of October in Boulder.
The day length shortens by 1 hour, 15 minutes over the course of October 2024, from 11 hours, 47 minutes on the first day to 10 hours, 32 minutes on the last in Boulder, CO.
| Day | Twilight Start | Sunrise | Sunset | Twilight End | Day Length | Solar Noon
Time of day when the sun reaches its highest point in the sky.
|
Nautical Twilight Start | Nautical Twilight End | Astronomical Twilight Start | Astronomical Twilight End | Night Length
Calculated form this day's sunset to the next day's sunrise.
|
Moon phase |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tue, Oct 1 | 6:31:14 am | 6:56:51 am | 6:44:06 pm | 7:09:43 pm | 11h 47m 15s | 12:50:29 pm | 5:59:51 am | 7:41:06 pm | 5:28:11 am | 8:12:46 pm | 12h 13m 44s | 🌘 (2%) |
| Wed, Oct 2 | 6:32:13 am | 6:57:50 am | 6:42:29 pm | 7:08:06 pm | 11h 44m 39s | 12:50:10 pm | 6:00:50 am | 7:39:29 pm | 5:29:13 am | 8:11:06 pm | 12h 16m 20s | 🌑 (0%) |
| Thu, Oct 3 | 6:33:12 am | 6:58:49 am | 6:40:53 pm | 7:06:30 pm | 11h 42m 4s | 12:49:51 pm | 6:01:50 am | 7:37:52 pm | 5:30:15 am | 8:09:27 pm | 12h 18m 56s | 🌑 (0%) |
| Fri, Oct 4 | 6:34:11 am | 6:59:49 am | 6:39:17 pm | 7:04:55 pm | 11h 39m 28s | 12:49:33 pm | 6:02:49 am | 7:36:16 pm | 5:31:16 am | 8:07:49 pm | 12h 21m 32s | 🌒 (2%) |
| Sat, Oct 5 | 6:35:10 am | 7:00:49 am | 6:37:41 pm | 7:03:20 pm | 11h 36m 52s | 12:49:15 pm | 6:03:49 am | 7:34:41 pm | 5:32:18 am | 8:06:12 pm | 12h 24m 8s | 🌒 (5%) |
| Sun, Oct 6 | 6:36:09 am | 7:01:49 am | 6:36:06 pm | 7:01:46 pm | 11h 34m 17s | 12:48:57 pm | 6:04:48 am | 7:33:06 pm | 5:33:19 am | 8:04:36 pm | 12h 26m 44s | 🌒 (11%) |
| Mon, Oct 7 | 6:37:09 am | 7:02:50 am | 6:34:31 pm | 7:00:12 pm | 11h 31m 41s | 12:48:40 pm | 6:05:48 am | 7:31:33 pm | 5:34:20 am | 8:03:01 pm | 12h 29m 19s | 🌒 (17%) |
| Tue, Oct 8 | 6:38:08 am | 7:03:50 am | 6:32:57 pm | 6:58:39 pm | 11h 29m 7s | 12:48:24 pm | 6:06:47 am | 7:30:00 pm | 5:35:21 am | 8:01:26 pm | 12h 31m 54s | 🌒 (25%) |
| Wed, Oct 9 | 6:39:08 am | 7:04:51 am | 6:31:23 pm | 6:57:07 pm | 11h 26m 32s | 12:48:07 pm | 6:07:47 am | 7:28:28 pm | 5:36:22 am | 7:59:53 pm | 12h 34m 30s | 🌒 (34%) |
| Thu, Oct 10 | 6:40:08 am | 7:05:53 am | 6:29:50 pm | 6:55:35 pm | 11h 23m 57s | 12:47:52 pm | 6:08:46 am | 7:26:57 pm | 5:37:22 am | 7:58:21 pm | 12h 37m 4s | 🌓 (44%) |
| Fri, Oct 11 | 6:41:08 am | 7:06:54 am | 6:28:18 pm | 6:54:05 pm | 11h 21m 24s | 12:47:36 pm | 6:09:46 am | 7:25:27 pm | 5:38:23 am | 7:56:50 pm | 12h 39m 38s | 🌓 (55%) |
| Sat, Oct 12 | 6:42:09 am | 7:07:56 am | 6:26:47 pm | 6:52:35 pm | 11h 18m 51s | 12:47:22 pm | 6:10:46 am | 7:23:57 pm | 5:39:23 am | 7:55:20 pm | 12h 42m 12s | 🌔 (66%) |
| Sun, Oct 13 | 6:43:09 am | 7:08:59 am | 6:25:16 pm | 6:51:06 pm | 11h 16m 17s | 12:47:07 pm | 6:11:46 am | 7:22:29 pm | 5:40:24 am | 7:53:51 pm | 12h 44m 45s | 🌔 (76%) |
| Mon, Oct 14 | 6:44:10 am | 7:10:01 am | 6:23:46 pm | 6:49:37 pm | 11h 13m 45s | 12:46:54 pm | 6:12:45 am | 7:21:02 pm | 5:41:24 am | 7:52:23 pm | 12h 47m 18s | 🌔 (85%) |
| Tue, Oct 15 | 6:45:11 am | 7:11:04 am | 6:22:17 pm | 6:48:10 pm | 11h 11m 13s | 12:46:41 pm | 6:13:45 am | 7:19:36 pm | 5:42:24 am | 7:50:57 pm | 12h 49m 51s | 🌔 (93%) |
| Wed, Oct 16 | 6:46:12 am | 7:12:08 am | 6:20:48 pm | 6:46:44 pm | 11h 8m 40s | 12:46:28 pm | 6:14:45 am | 7:18:11 pm | 5:43:25 am | 7:49:31 pm | 12h 52m 23s | 🌔 (98%) |
| Thu, Oct 17 | 6:47:14 am | 7:13:11 am | 6:19:21 pm | 6:45:18 pm | 11h 6m 10s | 12:46:16 pm | 6:15:46 am | 7:16:46 pm | 5:44:25 am | 7:48:07 pm | 12h 54m 54s | 🌕 (100%) |
| Fri, Oct 18 | 6:48:15 am | 7:14:15 am | 6:17:54 pm | 6:43:54 pm | 11h 3m 39s | 12:46:05 pm | 6:16:46 am | 7:15:24 pm | 5:45:25 am | 7:46:44 pm | 12h 57m 25s | 🌖 (99%) |
| Sat, Oct 19 | 6:49:17 am | 7:15:19 am | 6:16:28 pm | 6:42:30 pm | 11h 1m 9s | 12:45:54 pm | 6:17:46 am | 7:14:02 pm | 5:46:25 am | 7:45:23 pm | 12h 59m 56s | 🌖 (95%) |
| Sun, Oct 20 | 6:50:20 am | 7:16:24 am | 6:15:04 pm | 6:41:08 pm | 10h 58m 40s | 12:45:44 pm | 6:18:47 am | 7:12:41 pm | 5:47:25 am | 7:44:03 pm | 13h 2m 25s | 🌖 (89%) |
| Mon, Oct 21 | 6:51:22 am | 7:17:29 am | 6:13:40 pm | 6:39:47 pm | 10h 56m 11s | 12:45:34 pm | 6:19:47 am | 7:11:22 pm | 5:48:25 am | 7:42:44 pm | 13h 4m 54s | 🌖 (81%) |
| Tue, Oct 22 | 6:52:24 am | 7:18:34 am | 6:12:17 pm | 6:38:27 pm | 10h 53m 43s | 12:45:26 pm | 6:20:48 am | 7:10:04 pm | 5:49:25 am | 7:41:26 pm | 13h 7m 23s | 🌖 (71%) |
| Wed, Oct 23 | 6:53:27 am | 7:19:40 am | 6:10:56 pm | 6:37:08 pm | 10h 51m 16s | 12:45:18 pm | 6:21:49 am | 7:08:47 pm | 5:50:25 am | 7:40:10 pm | 13h 9m 49s | 🌖 (61%) |
| Thu, Oct 24 | 6:54:30 am | 7:20:45 am | 6:09:35 pm | 6:35:50 pm | 10h 48m 50s | 12:45:10 pm | 6:22:50 am | 7:07:31 pm | 5:51:26 am | 7:38:55 pm | 13h 12m 16s | 🌗 (51%) |
| Fri, Oct 25 | 6:55:34 am | 7:21:51 am | 6:08:16 pm | 6:34:34 pm | 10h 46m 25s | 12:45:04 pm | 6:23:51 am | 7:06:17 pm | 5:52:26 am | 7:37:42 pm | 13h 14m 42s | 🌘 (41%) |
| Sat, Oct 26 | 6:56:37 am | 7:22:58 am | 6:06:58 pm | 6:33:18 pm | 10h 44m 0s | 12:44:58 pm | 6:24:52 am | 7:05:04 pm | 5:53:26 am | 7:36:30 pm | 13h 17m 7s | 🌘 (32%) |
| Sun, Oct 27 | 6:57:41 am | 7:24:05 am | 6:05:41 pm | 6:32:04 pm | 10h 41m 36s | 12:44:53 pm | 6:25:53 am | 7:03:52 pm | 5:54:26 am | 7:35:19 pm | 13h 19m 31s | 🌘 (23%) |
| Mon, Oct 28 | 6:58:45 am | 7:25:12 am | 6:04:25 pm | 6:30:52 pm | 10h 39m 13s | 12:44:48 pm | 6:26:54 am | 7:02:42 pm | 5:55:26 am | 7:34:10 pm | 13h 21m 54s | 🌘 (16%) |
| Tue, Oct 29 | 6:59:49 am | 7:26:19 am | 6:03:10 pm | 6:29:40 pm | 10h 36m 51s | 12:44:45 pm | 6:27:56 am | 7:01:33 pm | 5:56:26 am | 7:33:03 pm | 13h 24m 16s | 🌘 (9%) |
| Wed, Oct 30 | 7:00:53 am | 7:27:26 am | 6:01:57 pm | 6:28:30 pm | 10h 34m 31s | 12:44:42 pm | 6:28:57 am | 7:00:26 pm | 5:57:26 am | 7:31:57 pm | 13h 26m 37s | 🌘 (5%) |
| Thu, Oct 31 | 7:01:57 am | 7:28:34 am | 6:00:45 pm | 6:27:22 pm | 10h 32m 11s | 12:44:40 pm | 6:29:59 am | 6:59:20 pm | 5:58:26 am | 7:30:53 pm | 13h 28m 57s | 🌘 (1%) |
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Sunrise and Sunset photos in Boulder, CO
Enjoy this beautiful gallery of images of the sunset and sunrise at Boulder, CO. All images provided by our fantastic community of photographers!
Year distribution of sunrise and sunset times in Boulder, CO - 2024
The followin graph shows sunrise and sunset times in Boulder, CO for every day of the year. There are two jumps in the graph that represent the hour change for Daylight Saving Time (DST) in Boulder, CO.