Sunrise and Sunset times in Longmont, United States 
Today:
 Sunrise: 07:06:52
|
 Sunset: 16:34:44
|
Day Length: 9h 27m 52s
Time zone: America/Denver, UTC -7 h.
Latitude: 40.169, Longitude: -105.1
Longmont
Colorado, United States 
99 398 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Dec-01, Monday | 07:03:57 | 11:49:37 | 16:35:16 | 9h 31m 19s |
| 2025-Dec-02, Tuesday | 07:04:57 | 11:50:00 | 16:35:03 | 9h 30m 6s |
| 2025-Dec-03, Wednesday | 07:05:55 | 11:50:24 | 16:34:53 | 9h 28m 58s |
| 2025-Dec-04, Thursday | 07:06:52 | 11:50:48 | 16:34:44 | 9h 27m 52s |
| 2025-Dec-05, Friday | 07:07:48 | 11:51:13 | 16:34:38 | 9h 26m 50s |
| 2025-Dec-06, Saturday | 07:08:42 | 11:51:38 | 16:34:34 | 9h 25m 52s |
| 2025-Dec-07, Sunday | 07:09:36 | 11:52:04 | 16:34:33 | 9h 24m 57s |
| 2025-Dec-08, Monday | 07:10:28 | 11:52:31 | 16:34:33 | 9h 24m 5s |
| 2025-Dec-09, Tuesday | 07:11:19 | 11:52:57 | 16:34:36 | 9h 23m 17s |
| 2025-Dec-10, Wednesday | 07:12:08 | 11:53:25 | 16:34:42 | 9h 22m 34s |
| 2025-Dec-11, Thursday | 07:12:56 | 11:53:52 | 16:34:49 | 9h 21m 53s |
| 2025-Dec-12, Friday | 07:13:42 | 11:54:20 | 16:34:59 | 9h 21m 17s |
| 2025-Dec-13, Saturday | 07:14:27 | 11:54:49 | 16:35:11 | 9h 20m 44s |
| 2025-Dec-14, Sunday | 07:15:10 | 11:55:17 | 16:35:25 | 9h 20m 15s |
| 2025-Dec-15, Monday | 07:15:51 | 11:55:46 | 16:35:41 | 9h 19m 50s |
| 2025-Dec-16, Tuesday | 07:16:31 | 11:56:15 | 16:36:00 | 9h 19m 29s |
| 2025-Dec-17, Wednesday | 07:17:09 | 11:56:45 | 16:36:21 | 9h 19m 12s |
| 2025-Dec-18, Thursday | 07:17:45 | 11:57:14 | 16:36:44 | 9h 18m 59s |
| 2025-Dec-19, Friday | 07:18:19 | 11:57:44 | 16:37:09 | 9h 18m 50s |
| 2025-Dec-20, Saturday | 07:18:52 | 11:58:14 | 16:37:36 | 9h 18m 44s |
| 2025-Dec-21, Sunday | 07:19:22 | 11:58:44 | 16:38:05 | 9h 18m 43s |
| 2025-Dec-22, Monday | 07:19:51 | 11:59:13 | 16:38:36 | 9h 18m 45s |
| 2025-Dec-23, Tuesday | 07:20:17 | 11:59:43 | 16:39:09 | 9h 18m 52s |
| 2025-Dec-24, Wednesday | 07:20:42 | 12:00:13 | 16:39:44 | 9h 19m 2s |
| 2025-Dec-25, Thursday | 07:21:04 | 12:00:43 | 16:40:21 | 9h 19m 17s |
| 2025-Dec-26, Friday | 07:21:24 | 12:01:12 | 16:41:00 | 9h 19m 36s |
| 2025-Dec-27, Saturday | 07:21:42 | 12:01:42 | 16:41:41 | 9h 19m 59s |
| 2025-Dec-28, Sunday | 07:21:59 | 12:02:11 | 16:42:24 | 9h 20m 25s |
| 2025-Dec-29, Monday | 07:22:13 | 12:02:40 | 16:43:08 | 9h 20m 55s |
| 2025-Dec-30, Tuesday | 07:22:24 | 12:03:09 | 16:43:54 | 9h 21m 30s |
| 2025-Dec-31, Wednesday | 07:22:34 | 12:03:38 | 16:44:41 | 9h 22m 7s |
Day length in Longmont during the year on the chart:
Longmont 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), 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