Sunrise and Sunset times in Casper, United States
Daily sun schedule, day length and annual chart
Select month and year
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2026-Apr-01, Wednesday | 06:46:37 | 13:09:03 | 19:31:28 | 12h 44m 51s |
| 2026-Apr-02, Thursday | 06:44:53 | 13:08:45 | 19:32:37 | 12h 47m 44s |
| 2026-Apr-03, Friday | 06:43:08 | 13:08:28 | 19:33:47 | 12h 50m 39s |
| 2026-Apr-04, Saturday | 06:41:25 | 13:08:10 | 19:34:56 | 12h 53m 31s |
| 2026-Apr-05, Sunday | 06:39:41 | 13:07:53 | 19:36:05 | 12h 56m 24s |
| 2026-Apr-06, Monday | 06:37:58 | 13:07:36 | 19:37:14 | 12h 59m 16s |
| 2026-Apr-07, Tuesday | 06:36:16 | 13:07:19 | 19:38:23 | 13h 2m 7s |
| 2026-Apr-08, Wednesday | 06:34:33 | 13:07:03 | 19:39:32 | 13h 4m 59s |
| 2026-Apr-09, Thursday | 06:32:52 | 13:06:46 | 19:40:41 | 13h 7m 49s |
| 2026-Apr-10, Friday | 06:31:11 | 13:06:30 | 19:41:50 | 13h 10m 39s |
| 2026-Apr-11, Saturday | 06:29:30 | 13:06:14 | 19:42:59 | 13h 13m 29s |
| 2026-Apr-12, Sunday | 06:27:50 | 13:05:59 | 19:44:08 | 13h 16m 18s |
| 2026-Apr-13, Monday | 06:26:11 | 13:05:44 | 19:45:17 | 13h 19m 6s |
| 2026-Apr-14, Tuesday | 06:24:32 | 13:05:29 | 19:46:26 | 13h 21m 54s |
| 2026-Apr-15, Wednesday | 06:22:54 | 13:05:14 | 19:47:35 | 13h 24m 41s |
| 2026-Apr-16, Thursday | 06:21:17 | 13:05:00 | 19:48:44 | 13h 27m 27s |
| 2026-Apr-17, Friday | 06:19:40 | 13:04:47 | 19:49:53 | 13h 30m 13s |
| 2026-Apr-18, Saturday | 06:18:04 | 13:04:33 | 19:51:02 | 13h 32m 58s |
| 2026-Apr-19, Sunday | 06:16:29 | 13:04:20 | 19:52:11 | 13h 35m 42s |
| 2026-Apr-20, Monday | 06:14:55 | 13:04:08 | 19:53:20 | 13h 38m 25s |
| 2026-Apr-21, Tuesday | 06:13:22 | 13:03:56 | 19:54:29 | 13h 41m 7s |
| 2026-Apr-22, Wednesday | 06:11:50 | 13:03:44 | 19:55:38 | 13h 43m 48s |
| 2026-Apr-23, Thursday | 06:10:18 | 13:03:33 | 19:56:47 | 13h 46m 29s |
| 2026-Apr-24, Friday | 06:08:48 | 13:03:22 | 19:57:56 | 13h 49m 8s |
| 2026-Apr-25, Saturday | 06:07:19 | 13:03:12 | 19:59:05 | 13h 51m 46s |
| 2026-Apr-26, Sunday | 06:05:50 | 13:03:02 | 20:00:13 | 13h 54m 23s |
| 2026-Apr-27, Monday | 06:04:23 | 13:02:53 | 20:01:22 | 13h 56m 59s |
| 2026-Apr-28, Tuesday | 06:02:57 | 13:02:44 | 20:02:31 | 13h 59m 34s |
| 2026-Apr-29, Wednesday | 06:01:32 | 13:02:36 | 20:03:39 | 14h 2m 7s |
| 2026-Apr-30, Thursday | 06:00:08 | 13:02:28 | 20:04:47 | 14h 4m 39s |
Day length in Casper during the year on the chart
Casper 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