Sunrise and sunset Boulder
Sunrise and sunset today Boulder
Sunrise
07:10:41
07:10:41
Sunset
16:35:42
16:35:42
Day Length today Boulder: 09:25:01
Sunrise and sunset tomorrow
Sunrise
07:11:32
07:11:32
Sunset
16:35:45
16:35:45
Day Length tomorrow: 09:24:13
Sunrise and sunset Boulder for December 2025
Dec 1, 2025
07:04:12
Sunrise
16:36:23
Sunset
11:50:18
Zenith
09:32:11
Day Length
06:34:17 - 17:06:18
Civil twilight
06:00:40 - 17:39:55
Nautical twilight
05:28:01 - 18:12:34
Astronomical twilight
07:04:12
Sunrise
16:36:23
Sunset
11:50:18
Zenith
09:32:11
Day Length
06:34:17 - 17:06:18
Civil twilight
06:00:40 - 17:39:55
Nautical twilight
05:28:01 - 18:12:34
Astronomical twilight
Dec 2, 2025
07:05:11
Sunrise
16:36:11
Sunset
11:50:41
Zenith
09:31:00
Day Length
06:35:13 - 17:06:09
Civil twilight
06:01:34 - 17:39:48
Nautical twilight
05:28:53 - 18:12:29
Astronomical twilight
07:05:11
Sunrise
16:36:11
Sunset
11:50:41
Zenith
09:31:00
Day Length
06:35:13 - 17:06:09
Civil twilight
06:01:34 - 17:39:48
Nautical twilight
05:28:53 - 18:12:29
Astronomical twilight
Dec 3, 2025
07:06:09
Sunrise
16:36:00
Sunset
11:51:05
Zenith
09:29:51
Day Length
06:36:08 - 17:06:01
Civil twilight
06:02:26 - 17:39:43
Nautical twilight
05:29:43 - 18:12:26
Astronomical twilight
07:06:09
Sunrise
16:36:00
Sunset
11:51:05
Zenith
09:29:51
Day Length
06:36:08 - 17:06:01
Civil twilight
06:02:26 - 17:39:43
Nautical twilight
05:29:43 - 18:12:26
Astronomical twilight
Dec 4, 2025
07:07:06
Sunrise
16:35:52
Sunset
11:51:29
Zenith
09:28:46
Day Length
06:37:02 - 17:05:56
Civil twilight
06:03:18 - 17:39:40
Nautical twilight
05:30:33 - 18:12:25
Astronomical twilight
07:07:06
Sunrise
16:35:52
Sunset
11:51:29
Zenith
09:28:46
Day Length
06:37:02 - 17:05:56
Civil twilight
06:03:18 - 17:39:40
Nautical twilight
05:30:33 - 18:12:25
Astronomical twilight
Dec 5, 2025
07:08:02
Sunrise
16:35:46
Sunset
11:51:54
Zenith
09:27:44
Day Length
06:37:55 - 17:05:52
Civil twilight
06:04:08 - 17:39:39
Nautical twilight
05:31:22 - 18:12:26
Astronomical twilight
07:08:02
Sunrise
16:35:46
Sunset
11:51:54
Zenith
09:27:44
Day Length
06:37:55 - 17:05:52
Civil twilight
06:04:08 - 17:39:39
Nautical twilight
05:31:22 - 18:12:26
Astronomical twilight
Dec 6, 2025
07:08:56
Sunrise
16:35:42
Sunset
11:52:19
Zenith
09:26:46
Day Length
06:38:47 - 17:05:51
Civil twilight
06:04:58 - 17:39:40
Nautical twilight
05:32:10 - 18:12:28
Astronomical twilight
07:08:56
Sunrise
16:35:42
Sunset
11:52:19
Zenith
09:26:46
Day Length
06:38:47 - 17:05:51
Civil twilight
06:04:58 - 17:39:40
Nautical twilight
05:32:10 - 18:12:28
Astronomical twilight
Dec 7, 2025
07:09:49
Sunrise
16:35:41
Sunset
11:52:45
Zenith
09:25:52
Day Length
06:39:38 - 17:05:52
Civil twilight
06:05:47 - 17:39:43
Nautical twilight
05:32:57 - 18:12:33
Astronomical twilight
07:09:49
Sunrise
16:35:41
Sunset
11:52:45
Zenith
09:25:52
Day Length
06:39:38 - 17:05:52
Civil twilight
06:05:47 - 17:39:43
Nautical twilight
05:32:57 - 18:12:33
Astronomical twilight
Dec 8, 2025
07:10:41
Sunrise
16:35:42
Sunset
11:53:12
Zenith
09:25:01
Day Length
06:40:28 - 17:05:55
Civil twilight
06:06:35 - 17:39:48
Nautical twilight
05:33:44 - 18:12:39
Astronomical twilight
07:10:41
Sunrise
16:35:42
Sunset
11:53:12
Zenith
09:25:01
Day Length
06:40:28 - 17:05:55
Civil twilight
06:06:35 - 17:39:48
Nautical twilight
05:33:44 - 18:12:39
Astronomical twilight
Dec 9, 2025
07:11:32
Sunrise
16:35:45
Sunset
11:53:38
Zenith
09:24:13
Day Length
06:41:16 - 17:06:01
Civil twilight
06:07:21 - 17:39:55
Nautical twilight
05:34:29 - 18:12:48
Astronomical twilight
07:11:32
Sunrise
16:35:45
Sunset
11:53:38
Zenith
09:24:13
Day Length
06:41:16 - 17:06:01
Civil twilight
06:07:21 - 17:39:55
Nautical twilight
05:34:29 - 18:12:48
Astronomical twilight
Dec 10, 2025
07:12:21
Sunrise
16:35:50
Sunset
11:54:06
Zenith
09:23:29
Day Length
06:42:03 - 17:06:08
Civil twilight
06:08:07 - 17:40:05
Nautical twilight
05:35:13 - 18:12:58
Astronomical twilight
07:12:21
Sunrise
16:35:50
Sunset
11:54:06
Zenith
09:23:29
Day Length
06:42:03 - 17:06:08
Civil twilight
06:08:07 - 17:40:05
Nautical twilight
05:35:13 - 18:12:58
Astronomical twilight
Dec 11, 2025
07:13:09
Sunrise
16:35:58
Sunset
11:54:33
Zenith
09:22:49
Day Length
06:42:49 - 17:06:17
Civil twilight
06:08:51 - 17:40:15
Nautical twilight
05:35:56 - 18:13:10
Astronomical twilight
07:13:09
Sunrise
16:35:58
Sunset
11:54:33
Zenith
09:22:49
Day Length
06:42:49 - 17:06:17
Civil twilight
06:08:51 - 17:40:15
Nautical twilight
05:35:56 - 18:13:10
Astronomical twilight
Dec 12, 2025
07:13:55
Sunrise
16:36:08
Sunset
11:55:01
Zenith
09:22:13
Day Length
06:43:34 - 17:06:29
Civil twilight
06:09:34 - 17:40:28
Nautical twilight
05:36:39 - 18:13:24
Astronomical twilight
07:13:55
Sunrise
16:36:08
Sunset
11:55:01
Zenith
09:22:13
Day Length
06:43:34 - 17:06:29
Civil twilight
06:09:34 - 17:40:28
Nautical twilight
05:36:39 - 18:13:24
Astronomical twilight
Dec 13, 2025
07:14:40
Sunrise
16:36:20
Sunset
11:55:30
Zenith
09:21:40
Day Length
06:44:17 - 17:06:42
Civil twilight
06:10:16 - 17:40:43
Nautical twilight
05:37:19 - 18:13:40
Astronomical twilight
07:14:40
Sunrise
16:36:20
Sunset
11:55:30
Zenith
09:21:40
Day Length
06:44:17 - 17:06:42
Civil twilight
06:10:16 - 17:40:43
Nautical twilight
05:37:19 - 18:13:40
Astronomical twilight
Dec 14, 2025
07:15:23
Sunrise
16:36:34
Sunset
11:55:58
Zenith
09:21:11
Day Length
06:44:59 - 17:06:58
Civil twilight
06:10:57 - 17:41:00
Nautical twilight
05:37:59 - 18:13:58
Astronomical twilight
07:15:23
Sunrise
16:36:34
Sunset
11:55:58
Zenith
09:21:11
Day Length
06:44:59 - 17:06:58
Civil twilight
06:10:57 - 17:41:00
Nautical twilight
05:37:59 - 18:13:58
Astronomical twilight
Dec 15, 2025
07:16:04
Sunrise
16:36:51
Sunset
11:56:27
Zenith
09:20:47
Day Length
06:45:39 - 17:07:16
Civil twilight
06:11:36 - 17:41:19
Nautical twilight
05:38:38 - 18:14:17
Astronomical twilight
07:16:04
Sunrise
16:36:51
Sunset
11:56:27
Zenith
09:20:47
Day Length
06:45:39 - 17:07:16
Civil twilight
06:11:36 - 17:41:19
Nautical twilight
05:38:38 - 18:14:17
Astronomical twilight
Dec 16, 2025
07:16:43
Sunrise
16:37:09
Sunset
11:56:56
Zenith
09:20:26
Day Length
06:46:18 - 17:07:35
Civil twilight
06:12:14 - 17:41:39
Nautical twilight
05:39:15 - 18:14:38
Astronomical twilight
07:16:43
Sunrise
16:37:09
Sunset
11:56:56
Zenith
09:20:26
Day Length
06:46:18 - 17:07:35
Civil twilight
06:12:14 - 17:41:39
Nautical twilight
05:39:15 - 18:14:38
Astronomical twilight
Dec 17, 2025
07:17:21
Sunrise
16:37:30
Sunset
11:57:26
Zenith
09:20:09
Day Length
06:46:55 - 17:07:57
Civil twilight
06:12:50 - 17:42:01
Nautical twilight
05:39:51 - 18:15:01
Astronomical twilight
07:17:21
Sunrise
16:37:30
Sunset
11:57:26
Zenith
09:20:09
Day Length
06:46:55 - 17:07:57
Civil twilight
06:12:50 - 17:42:01
Nautical twilight
05:39:51 - 18:15:01
Astronomical twilight
Dec 18, 2025
07:17:57
Sunrise
16:37:53
Sunset
11:57:55
Zenith
09:19:56
Day Length
06:47:30 - 17:08:20
Civil twilight
06:13:25 - 17:42:25
Nautical twilight
05:40:25 - 18:15:25
Astronomical twilight
07:17:57
Sunrise
16:37:53
Sunset
11:57:55
Zenith
09:19:56
Day Length
06:47:30 - 17:08:20
Civil twilight
06:13:25 - 17:42:25
Nautical twilight
05:40:25 - 18:15:25
Astronomical twilight
Dec 19, 2025
07:18:32
Sunrise
16:38:18
Sunset
11:58:25
Zenith
09:19:46
Day Length
06:48:04 - 17:08:46
Civil twilight
06:13:59 - 17:42:51
Nautical twilight
05:40:59 - 18:15:51
Astronomical twilight
07:18:32
Sunrise
16:38:18
Sunset
11:58:25
Zenith
09:19:46
Day Length
06:48:04 - 17:08:46
Civil twilight
06:13:59 - 17:42:51
Nautical twilight
05:40:59 - 18:15:51
Astronomical twilight
Dec 20, 2025
07:19:04
Sunrise
16:38:45
Sunset
11:58:55
Zenith
09:19:41
Day Length
06:48:36 - 17:09:13
Civil twilight
06:14:31 - 17:43:19
Nautical twilight
05:41:30 - 18:16:19
Astronomical twilight
07:19:04
Sunrise
16:38:45
Sunset
11:58:55
Zenith
09:19:41
Day Length
06:48:36 - 17:09:13
Civil twilight
06:14:31 - 17:43:19
Nautical twilight
05:41:30 - 18:16:19
Astronomical twilight
Dec 21, 2025
07:19:35
Sunrise
16:39:14
Sunset
11:59:24
Zenith
09:19:39
Day Length
06:49:07 - 17:09:42
Civil twilight
06:15:01 - 17:43:48
Nautical twilight
05:42:01 - 18:16:48
Astronomical twilight
07:19:35
Sunrise
16:39:14
Sunset
11:59:24
Zenith
09:19:39
Day Length
06:49:07 - 17:09:42
Civil twilight
06:15:01 - 17:43:48
Nautical twilight
05:42:01 - 18:16:48
Astronomical twilight
Dec 22, 2025
07:20:03
Sunrise
16:39:46
Sunset
11:59:54
Zenith
09:19:43
Day Length
06:49:35 - 17:10:13
Civil twilight
06:15:30 - 17:44:19
Nautical twilight
05:42:30 - 18:17:19
Astronomical twilight
07:20:03
Sunrise
16:39:46
Sunset
11:59:54
Zenith
09:19:43
Day Length
06:49:35 - 17:10:13
Civil twilight
06:15:30 - 17:44:19
Nautical twilight
05:42:30 - 18:17:19
Astronomical twilight
Dec 23, 2025
07:20:30
Sunrise
16:40:19
Sunset
12:00:24
Zenith
09:19:49
Day Length
06:50:02 - 17:10:46
Civil twilight
06:15:57 - 17:44:51
Nautical twilight
05:42:57 - 18:17:51
Astronomical twilight
07:20:30
Sunrise
16:40:19
Sunset
12:00:24
Zenith
09:19:49
Day Length
06:50:02 - 17:10:46
Civil twilight
06:15:57 - 17:44:51
Nautical twilight
05:42:57 - 18:17:51
Astronomical twilight
Dec 24, 2025
07:20:54
Sunrise
16:40:54
Sunset
12:00:54
Zenith
09:20:00
Day Length
06:50:27 - 17:11:21
Civil twilight
06:16:22 - 17:45:26
Nautical twilight
05:43:23 - 18:18:25
Astronomical twilight
07:20:54
Sunrise
16:40:54
Sunset
12:00:54
Zenith
09:20:00
Day Length
06:50:27 - 17:11:21
Civil twilight
06:16:22 - 17:45:26
Nautical twilight
05:43:23 - 18:18:25
Astronomical twilight
Dec 25, 2025
07:21:17
Sunrise
16:41:31
Sunset
12:01:24
Zenith
09:20:14
Day Length
06:50:50 - 17:11:57
Civil twilight
06:16:46 - 17:46:01
Nautical twilight
05:43:47 - 18:19:01
Astronomical twilight
07:21:17
Sunrise
16:41:31
Sunset
12:01:24
Zenith
09:20:14
Day Length
06:50:50 - 17:11:57
Civil twilight
06:16:46 - 17:46:01
Nautical twilight
05:43:47 - 18:19:01
Astronomical twilight
Dec 26, 2025
07:21:37
Sunrise
16:42:10
Sunset
12:01:53
Zenith
09:20:33
Day Length
06:51:11 - 17:12:35
Civil twilight
06:17:08 - 17:46:39
Nautical twilight
05:44:09 - 18:19:37
Astronomical twilight
07:21:37
Sunrise
16:42:10
Sunset
12:01:53
Zenith
09:20:33
Day Length
06:51:11 - 17:12:35
Civil twilight
06:17:08 - 17:46:39
Nautical twilight
05:44:09 - 18:19:37
Astronomical twilight
Dec 27, 2025
07:21:55
Sunrise
16:42:50
Sunset
12:02:23
Zenith
09:20:55
Day Length
06:51:31 - 17:13:15
Civil twilight
06:17:28 - 17:47:17
Nautical twilight
05:44:30 - 18:20:15
Astronomical twilight
07:21:55
Sunrise
16:42:50
Sunset
12:02:23
Zenith
09:20:55
Day Length
06:51:31 - 17:13:15
Civil twilight
06:17:28 - 17:47:17
Nautical twilight
05:44:30 - 18:20:15
Astronomical twilight
Dec 28, 2025
07:22:11
Sunrise
16:43:33
Sunset
12:02:52
Zenith
09:21:22
Day Length
06:51:48 - 17:13:56
Civil twilight
06:17:46 - 17:47:58
Nautical twilight
05:44:49 - 18:20:55
Astronomical twilight
07:22:11
Sunrise
16:43:33
Sunset
12:02:52
Zenith
09:21:22
Day Length
06:51:48 - 17:13:56
Civil twilight
06:17:46 - 17:47:58
Nautical twilight
05:44:49 - 18:20:55
Astronomical twilight
Dec 29, 2025
07:22:25
Sunrise
16:44:17
Sunset
12:03:21
Zenith
09:21:52
Day Length
06:52:04 - 17:14:39
Civil twilight
06:18:03 - 17:48:39
Nautical twilight
05:45:07 - 18:21:36
Astronomical twilight
07:22:25
Sunrise
16:44:17
Sunset
12:03:21
Zenith
09:21:52
Day Length
06:52:04 - 17:14:39
Civil twilight
06:18:03 - 17:48:39
Nautical twilight
05:45:07 - 18:21:36
Astronomical twilight
Dec 30, 2025
07:22:37
Sunrise
16:45:03
Sunset
12:03:50
Zenith
09:22:26
Day Length
06:52:17 - 17:15:23
Civil twilight
06:18:18 - 17:49:22
Nautical twilight
05:45:22 - 18:22:18
Astronomical twilight
07:22:37
Sunrise
16:45:03
Sunset
12:03:50
Zenith
09:22:26
Day Length
06:52:17 - 17:15:23
Civil twilight
06:18:18 - 17:49:22
Nautical twilight
05:45:22 - 18:22:18
Astronomical twilight
Dec 31, 2025
07:22:47
Sunrise
16:45:50
Sunset
12:04:19
Zenith
09:23:03
Day Length
06:52:28 - 17:16:09
Civil twilight
06:18:31 - 17:50:06
Nautical twilight
05:45:36 - 18:23:01
Astronomical twilight
07:22:47
Sunrise
16:45:50
Sunset
12:04:19
Zenith
09:23:03
Day Length
06:52:28 - 17:16:09
Civil twilight
06:18:31 - 17:50:06
Nautical twilight
05:45:36 - 18:23:01
Astronomical twilight