Sunrise and Sunset times in Casper Mountain, United States 
Today:
 Sunrise: 07:23:58
|
 Sunset: 18:16:19
|
Day Length: 10h 52m 21s
Time zone: America/Denver, UTC -6 h.
Latitude: 42.7449, Longitude: -106.321
Casper Mountain
🌇 High chance of a beautiful sunset!
Wyoming, United States 
628 people
Current temperature 14 ° C 
Partly cloudy
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Oct-01, Wednesday | 07:03:07 | 12:54:45 | 18:46:23 | 11h 43m 16s |
| 2025-Oct-02, Thursday | 07:04:14 | 12:54:26 | 18:44:38 | 11h 40m 24s |
| 2025-Oct-03, Friday | 07:05:22 | 12:54:08 | 18:42:53 | 11h 37m 31s |
| 2025-Oct-04, Saturday | 07:06:29 | 12:53:49 | 18:41:09 | 11h 34m 40s |
| 2025-Oct-05, Sunday | 07:07:37 | 12:53:31 | 18:39:25 | 11h 31m 48s |
| 2025-Oct-06, Monday | 07:08:45 | 12:53:14 | 18:37:42 | 11h 28m 57s |
| 2025-Oct-07, Tuesday | 07:09:54 | 12:52:56 | 18:35:59 | 11h 26m 5s |
| 2025-Oct-08, Wednesday | 07:11:02 | 12:52:40 | 18:34:17 | 11h 23m 15s |
| 2025-Oct-09, Thursday | 07:12:11 | 12:52:23 | 18:32:35 | 11h 20m 24s |
| 2025-Oct-10, Friday | 07:13:20 | 12:52:07 | 18:30:54 | 11h 17m 34s |
| 2025-Oct-11, Saturday | 07:14:30 | 12:51:52 | 18:29:14 | 11h 14m 44s |
| 2025-Oct-12, Sunday | 07:15:40 | 12:51:37 | 18:27:34 | 11h 11m 54s |
| 2025-Oct-13, Monday | 07:16:50 | 12:51:23 | 18:25:56 | 11h 9m 6s |
| 2025-Oct-14, Tuesday | 07:18:01 | 12:51:09 | 18:24:17 | 11h 6m 16s |
| 2025-Oct-15, Wednesday | 07:19:11 | 12:50:56 | 18:22:40 | 11h 3m 29s |
| 2025-Oct-16, Thursday | 07:20:23 | 12:50:43 | 18:21:03 | 11h 0m 40s |
| 2025-Oct-17, Friday | 07:21:34 | 12:50:31 | 18:19:28 | 10h 57m 54s |
| 2025-Oct-18, Saturday | 07:22:46 | 12:50:19 | 18:17:53 | 10h 55m 7s |
| 2025-Oct-19, Sunday | 07:23:58 | 12:50:09 | 18:16:19 | 10h 52m 21s |
| 2025-Oct-20, Monday | 07:25:10 | 12:49:58 | 18:14:46 | 10h 49m 36s |
| 2025-Oct-21, Tuesday | 07:26:23 | 12:49:49 | 18:13:15 | 10h 46m 52s |
| 2025-Oct-22, Wednesday | 07:27:36 | 12:49:40 | 18:11:44 | 10h 44m 8s |
| 2025-Oct-23, Thursday | 07:28:49 | 12:49:32 | 18:10:14 | 10h 41m 25s |
| 2025-Oct-24, Friday | 07:30:03 | 12:49:24 | 18:08:45 | 10h 38m 42s |
| 2025-Oct-25, Saturday | 07:31:17 | 12:49:17 | 18:07:18 | 10h 36m 1s |
| 2025-Oct-26, Sunday | 07:32:31 | 12:49:11 | 18:05:52 | 10h 33m 21s |
| 2025-Oct-27, Monday | 07:33:45 | 12:49:06 | 18:04:27 | 10h 30m 42s |
| 2025-Oct-28, Tuesday | 07:35:00 | 12:49:01 | 18:03:03 | 10h 28m 3s |
| 2025-Oct-29, Wednesday | 07:36:15 | 12:48:57 | 18:01:40 | 10h 25m 25s |
| 2025-Oct-30, Thursday | 07:37:30 | 12:48:54 | 18:00:19 | 10h 22m 49s |
| 2025-Oct-31, Friday | 07:38:45 | 12:48:52 | 17:58:59 | 10h 20m 14s |
Day length in Casper Mountain during the year on the chart:
Casper Mountain 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