Sunrise and Sunset times in Thornton, United States 
Today:
 Sunrise: 07:05:31
|
 Sunset: 16:34:50
|
Day Length: 9h 29m 19s
Time zone: America/Denver, UTC -7 h.
Latitude: 39.9205, Longitude: -104.944
Thornton
Colorado, United States 
136 978 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Dec-01, Monday | 07:02:38 | 11:48:59 | 16:35:21 | 9h 32m 43s |
| 2025-Dec-02, Tuesday | 07:03:37 | 11:49:23 | 16:35:08 | 9h 31m 31s |
| 2025-Dec-03, Wednesday | 07:04:34 | 11:49:46 | 16:34:58 | 9h 30m 24s |
| 2025-Dec-04, Thursday | 07:05:31 | 11:50:11 | 16:34:50 | 9h 29m 19s |
| 2025-Dec-05, Friday | 07:06:27 | 11:50:35 | 16:34:44 | 9h 28m 17s |
| 2025-Dec-06, Saturday | 07:07:21 | 11:51:01 | 16:34:41 | 9h 27m 20s |
| 2025-Dec-07, Sunday | 07:08:14 | 11:51:27 | 16:34:39 | 9h 26m 25s |
| 2025-Dec-08, Monday | 07:09:06 | 11:51:53 | 16:34:40 | 9h 25m 34s |
| 2025-Dec-09, Tuesday | 07:09:57 | 11:52:20 | 16:34:43 | 9h 24m 46s |
| 2025-Dec-10, Wednesday | 07:10:46 | 11:52:47 | 16:34:49 | 9h 24m 3s |
| 2025-Dec-11, Thursday | 07:11:33 | 11:53:15 | 16:34:57 | 9h 23m 24s |
| 2025-Dec-12, Friday | 07:12:19 | 11:53:43 | 16:35:06 | 9h 22m 47s |
| 2025-Dec-13, Saturday | 07:13:04 | 11:54:11 | 16:35:19 | 9h 22m 15s |
| 2025-Dec-14, Sunday | 07:13:47 | 11:54:40 | 16:35:33 | 9h 21m 46s |
| 2025-Dec-15, Monday | 07:14:28 | 11:55:09 | 16:35:50 | 9h 21m 22s |
| 2025-Dec-16, Tuesday | 07:15:08 | 11:55:38 | 16:36:08 | 9h 21m 0s |
| 2025-Dec-17, Wednesday | 07:15:46 | 11:56:07 | 16:36:29 | 9h 20m 43s |
| 2025-Dec-18, Thursday | 07:16:22 | 11:56:37 | 16:36:52 | 9h 20m 30s |
| 2025-Dec-19, Friday | 07:16:56 | 11:57:07 | 16:37:17 | 9h 20m 21s |
| 2025-Dec-20, Saturday | 07:17:28 | 11:57:36 | 16:37:44 | 9h 20m 16s |
| 2025-Dec-21, Sunday | 07:17:59 | 11:58:06 | 16:38:13 | 9h 20m 14s |
| 2025-Dec-22, Monday | 07:18:27 | 11:58:36 | 16:38:45 | 9h 20m 18s |
| 2025-Dec-23, Tuesday | 07:18:54 | 11:59:06 | 16:39:18 | 9h 20m 24s |
| 2025-Dec-24, Wednesday | 07:19:18 | 11:59:36 | 16:39:53 | 9h 20m 35s |
| 2025-Dec-25, Thursday | 07:19:41 | 12:00:05 | 16:40:30 | 9h 20m 49s |
| 2025-Dec-26, Friday | 07:20:01 | 12:00:35 | 16:41:09 | 9h 21m 8s |
| 2025-Dec-27, Saturday | 07:20:20 | 12:01:04 | 16:41:49 | 9h 21m 29s |
| 2025-Dec-28, Sunday | 07:20:36 | 12:01:34 | 16:42:31 | 9h 21m 55s |
| 2025-Dec-29, Monday | 07:20:50 | 12:02:03 | 16:43:16 | 9h 22m 26s |
| 2025-Dec-30, Tuesday | 07:21:02 | 12:02:32 | 16:44:01 | 9h 22m 59s |
| 2025-Dec-31, Wednesday | 07:21:12 | 12:03:00 | 16:44:49 | 9h 23m 37s |
Day length in Thornton during the year on the chart:
Thornton 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), 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), Lafayette (Colorado)
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