Sunrise and Sunset times in Derby, United States 
Today:
 Sunrise: 07:06:06
|
 Sunset: 16:34:52
|
Day Length: 9h 28m 46s
Time zone: America/Denver, UTC -7 h.
Latitude: 39.8401, Longitude: -104.917
Derby
Colorado, United States 
9 365 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Dec-01, Monday | 07:02:18 | 11:48:53 | 16:35:28 | 9h 33m 10s |
| 2025-Dec-02, Tuesday | 07:03:17 | 11:49:16 | 16:35:15 | 9h 31m 58s |
| 2025-Dec-03, Wednesday | 07:04:14 | 11:49:40 | 16:35:05 | 9h 30m 51s |
| 2025-Dec-04, Thursday | 07:05:11 | 11:50:04 | 16:34:57 | 9h 29m 46s |
| 2025-Dec-05, Friday | 07:06:06 | 11:50:29 | 16:34:52 | 9h 28m 46s |
| 2025-Dec-06, Saturday | 07:07:01 | 11:50:54 | 16:34:48 | 9h 27m 47s |
| 2025-Dec-07, Sunday | 07:07:54 | 11:51:20 | 16:34:47 | 9h 26m 53s |
| 2025-Dec-08, Monday | 07:08:45 | 11:51:47 | 16:34:48 | 9h 26m 3s |
| 2025-Dec-09, Tuesday | 07:09:36 | 11:52:14 | 16:34:51 | 9h 25m 15s |
| 2025-Dec-10, Wednesday | 07:10:25 | 11:52:41 | 16:34:57 | 9h 24m 32s |
| 2025-Dec-11, Thursday | 07:11:12 | 11:53:08 | 16:35:05 | 9h 23m 53s |
| 2025-Dec-12, Friday | 07:11:58 | 11:53:36 | 16:35:15 | 9h 23m 17s |
| 2025-Dec-13, Saturday | 07:12:43 | 11:54:05 | 16:35:27 | 9h 22m 44s |
| 2025-Dec-14, Sunday | 07:13:26 | 11:54:33 | 16:35:41 | 9h 22m 15s |
| 2025-Dec-15, Monday | 07:14:07 | 11:55:02 | 16:35:58 | 9h 21m 51s |
| 2025-Dec-16, Tuesday | 07:14:47 | 11:55:32 | 16:36:16 | 9h 21m 29s |
| 2025-Dec-17, Wednesday | 07:15:24 | 11:56:01 | 16:36:37 | 9h 21m 13s |
| 2025-Dec-18, Thursday | 07:16:00 | 11:56:30 | 16:37:00 | 9h 21m 0s |
| 2025-Dec-19, Friday | 07:16:35 | 11:57:00 | 16:37:25 | 9h 20m 50s |
| 2025-Dec-20, Saturday | 07:17:07 | 11:57:30 | 16:37:52 | 9h 20m 45s |
| 2025-Dec-21, Sunday | 07:17:38 | 11:58:00 | 16:38:22 | 9h 20m 44s |
| 2025-Dec-22, Monday | 07:18:06 | 11:58:29 | 16:38:53 | 9h 20m 47s |
| 2025-Dec-23, Tuesday | 07:18:33 | 11:58:59 | 16:39:26 | 9h 20m 53s |
| 2025-Dec-24, Wednesday | 07:18:57 | 11:59:29 | 16:40:01 | 9h 21m 4s |
| 2025-Dec-25, Thursday | 07:19:20 | 11:59:59 | 16:40:38 | 9h 21m 18s |
| 2025-Dec-26, Friday | 07:19:40 | 12:00:28 | 16:41:17 | 9h 21m 37s |
| 2025-Dec-27, Saturday | 07:19:58 | 12:00:58 | 16:41:57 | 9h 21m 59s |
| 2025-Dec-28, Sunday | 07:20:15 | 12:01:27 | 16:42:40 | 9h 22m 25s |
| 2025-Dec-29, Monday | 07:20:29 | 12:01:56 | 16:43:24 | 9h 22m 55s |
| 2025-Dec-30, Tuesday | 07:20:41 | 12:02:25 | 16:44:09 | 9h 23m 28s |
| 2025-Dec-31, Wednesday | 07:20:51 | 12:02:54 | 16:44:57 | 9h 24m 6s |
Day length in Derby during the year on the chart:
Derby 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