Daily sunrise, sunset, and daylight duration for Boulder throughout September 2028. Plan photography, golden hour, and travel with accurate day-by-day sun data.
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Fri, Sep 1 | 6:49 AM | 8:05 PM | 13h 16m |
| Sat, Sep 2 | 6:51 AM | 8:03 PM | 13h 13m |
| Sun, Sep 3 | 6:52 AM | 8:01 PM | 13h 10m |
| Mon, Sep 4 | 6:53 AM | 8:00 PM | 13h 06m |
| Tue, Sep 5 | 6:54 AM | 7:58 PM | 13h 03m |
| Wed, Sep 6 | 6:56 AM | 7:56 PM | 13h 00m |
| Thu, Sep 7 | 6:57 AM | 7:54 PM | 12h 57m |
| Fri, Sep 8 | 6:58 AM | 7:52 PM | 12h 54m |
| Sat, Sep 9 | 6:59 AM | 7:50 PM | 12h 50m |
| Sun, Sep 10 | 7:01 AM | 7:48 PM | 12h 47m |
| Mon, Sep 11 | 7:02 AM | 7:46 PM | 12h 44m |
| Tue, Sep 12 | 7:03 AM | 7:44 PM | 12h 41m |
| Wed, Sep 13 | 7:04 AM | 7:42 PM | 12h 38m |
| Thu, Sep 14 | 7:06 AM | 7:40 PM | 12h 34m |
| Fri, Sep 15 | 7:07 AM | 7:38 PM | 12h 31m |
| Sat, Sep 16 | 7:08 AM | 7:36 PM | 12h 28m |
| Sun, Sep 17 | 7:09 AM | 7:34 PM | 12h 25m |
| Mon, Sep 18 | 7:11 AM | 7:32 PM | 12h 21m |
| Tue, Sep 19 | 7:12 AM | 7:30 PM | 12h 18m |
| Wed, Sep 20 | 7:13 AM | 7:28 PM | 12h 15m |
| Thu, Sep 21 | 7:15 AM | 7:26 PM | 12h 12m |
| Fri, Sep 22 | 7:16 AM | 7:24 PM | 12h 08m |
| Sat, Sep 23 | 7:17 AM | 7:22 PM | 12h 05m |
| Sun, Sep 24 | 7:18 AM | 7:20 PM | 12h 02m |
| Mon, Sep 25 | 7:20 AM | 7:18 PM | 11h 59m |
| Tue, Sep 26 | 7:21 AM | 7:16 PM | 11h 55m |
| Wed, Sep 27 | 7:22 AM | 7:14 PM | 11h 52m |
| Thu, Sep 28 | 7:24 AM | 7:12 PM | 11h 49m |
| Fri, Sep 29 | 7:25 AM | 7:10 PM | 11h 46m |
| Sat, Sep 30 | 7:26 AM | 7:09 PM | 11h 42m |
Daily sunrise, sunset, and daylight duration for Boulder in the selected month.
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