Sunrise and Sunset times in Castle Rock, United States 
Today:
 Sunrise: 07:04:31
|
 Sunset: 16:35:56
|
Day Length: 9h 31m 25s
Time zone: America/Denver, UTC -7 h.
Latitude: 39.3762, Longitude: -104.854
Castle Rock
Colorado, United States 
62 276 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Dec-01, Monday | 07:00:45 | 11:48:38 | 16:36:30 | 9h 35m 45s |
| 2025-Dec-02, Tuesday | 07:01:43 | 11:49:01 | 16:36:18 | 9h 34m 35s |
| 2025-Dec-03, Wednesday | 07:02:40 | 11:49:25 | 16:36:09 | 9h 33m 29s |
| 2025-Dec-04, Thursday | 07:03:36 | 11:49:49 | 16:36:01 | 9h 32m 25s |
| 2025-Dec-05, Friday | 07:04:31 | 11:50:14 | 16:35:56 | 9h 31m 25s |
| 2025-Dec-06, Saturday | 07:05:25 | 11:50:39 | 16:35:53 | 9h 30m 28s |
| 2025-Dec-07, Sunday | 07:06:18 | 11:51:05 | 16:35:53 | 9h 29m 35s |
| 2025-Dec-08, Monday | 07:07:09 | 11:51:32 | 16:35:54 | 9h 28m 45s |
| 2025-Dec-09, Tuesday | 07:07:59 | 11:51:58 | 16:35:58 | 9h 27m 59s |
| 2025-Dec-10, Wednesday | 07:08:47 | 11:52:26 | 16:36:04 | 9h 27m 17s |
| 2025-Dec-11, Thursday | 07:09:35 | 11:52:53 | 16:36:12 | 9h 26m 37s |
| 2025-Dec-12, Friday | 07:10:20 | 11:53:21 | 16:36:22 | 9h 26m 2s |
| 2025-Dec-13, Saturday | 07:11:05 | 11:53:50 | 16:36:35 | 9h 25m 30s |
| 2025-Dec-14, Sunday | 07:11:47 | 11:54:18 | 16:36:49 | 9h 25m 2s |
| 2025-Dec-15, Monday | 07:12:28 | 11:54:47 | 16:37:06 | 9h 24m 38s |
| 2025-Dec-16, Tuesday | 07:13:08 | 11:55:16 | 16:37:25 | 9h 24m 17s |
| 2025-Dec-17, Wednesday | 07:13:45 | 11:55:46 | 16:37:46 | 9h 24m 1s |
| 2025-Dec-18, Thursday | 07:14:21 | 11:56:15 | 16:38:09 | 9h 23m 48s |
| 2025-Dec-19, Friday | 07:14:55 | 11:56:45 | 16:38:34 | 9h 23m 39s |
| 2025-Dec-20, Saturday | 07:15:28 | 11:57:15 | 16:39:02 | 9h 23m 34s |
| 2025-Dec-21, Sunday | 07:15:58 | 11:57:44 | 16:39:31 | 9h 23m 33s |
| 2025-Dec-22, Monday | 07:16:27 | 11:58:14 | 16:40:02 | 9h 23m 35s |
| 2025-Dec-23, Tuesday | 07:16:53 | 11:58:44 | 16:40:35 | 9h 23m 42s |
| 2025-Dec-24, Wednesday | 07:17:18 | 11:59:14 | 16:41:10 | 9h 23m 52s |
| 2025-Dec-25, Thursday | 07:17:41 | 11:59:44 | 16:41:47 | 9h 24m 6s |
| 2025-Dec-26, Friday | 07:18:01 | 12:00:13 | 16:42:25 | 9h 24m 24s |
| 2025-Dec-27, Saturday | 07:18:20 | 12:00:43 | 16:43:06 | 9h 24m 46s |
| 2025-Dec-28, Sunday | 07:18:36 | 12:01:12 | 16:43:48 | 9h 25m 12s |
| 2025-Dec-29, Monday | 07:18:51 | 12:01:41 | 16:44:32 | 9h 25m 41s |
| 2025-Dec-30, Tuesday | 07:19:03 | 12:02:10 | 16:45:17 | 9h 26m 14s |
| 2025-Dec-31, Wednesday | 07:19:13 | 12:02:39 | 16:46:04 | 9h 26m 51s |
Day length in Castle Rock during the year on the chart:
Castle Rock on United States map:
Locations in the same time zone America/Denver
Denver (Colorado), Salt Lake City (Utah), El Paso (Texas), Albuquerque (New Mexico), Colorado Springs (Colorado), Ogden (Utah), Provo (Utah), Aurora (Colorado), Fort Collins (Colorado), Lakewood (Colorado), Pueblo (Colorado), Thornton (Colorado), Grand Junction (Colorado), West Valley City (Utah), Las Cruces (New Mexico), Greeley (Colorado), Boulder (Colorado), Billings (Montana), Arvada (Colorado), St. George (Utah), West Jordan (Utah), Westminster (Colorado), Centennial (Colorado), Santa Fe (New Mexico), Highlands Ranch (Colorado), Logan (Utah), Longmont (Colorado), Orem (Utah), Rio Rancho (New Mexico), Sandy (Utah)
Largest populated areas in United States
New York (New York), Los Angeles (California), Chicago (Illinois), Miami (Florida), Dallas (Texas), Philadelphia (Pennsylvania), Houston (Texas), Washington (District of Columbia), Atlanta (Georgia), Boston (Massachusetts), Phoenix (Arizona), Seattle (Washington), San Francisco (California), Detroit (Michigan), San Diego (California), Minneapolis (Minnesota), Tampa (Florida), Denver (Colorado), Brooklyn (New York), Queens (New York), Baltimore (Maryland), Riverside (California), St. Louis (Missouri), Las Vegas (Nevada), Portland (Oregon), San Antonio (Texas), Sacramento (California), San Jose (California), Orlando (Florida), Cleveland (Ohio)
Countries closest to United States
*Calculation of distances from capital to capital
Daylight Hours FAQ: 10 Most Googled Questions Answered
Daylight hours refer to the period between sunrise and sunset. This duration changes throughout the year based on season and geographic location.
Earth's 23.5° axial tilt causes uneven sunlight distribution. Your hemisphere receives less direct sunlight in winter (shorter days) and more in summer (longer days).
Northern Hemisphere: June 20-22 (summer solstice).
Southern Hemisphere: December 21-23.
Near polar circles, the sun doesn't set for 24 hours.
Northern Hemisphere: December 21-22 (winter solstice).
Southern Hemisphere: June 20-21.
The closer to poles, the more extreme variations:
- Equator: ~12-hour days year-round
- Polar regions: Midnight sun/polar nights occur
Miami's lower latitude means:
- Winter days are longer than NY's
- Summer days are slightly shorter
During equinoxes:
- Spring: March 20-21
- Fall: September 22-23
Most rapid change near equinoxes: 2-4 minutes daily.
Slowest change near solstices: <1 minute daily.
Reliable tools:
- Timeanddate.com
- SunCalc.org
- Photographer's Ephemeris app
Yes. Reduced winter sunlight may cause:
- Seasonal Affective Disorder (SAD)
- Vitamin D deficiency
Solution: Light therapy lamps & midday walks