Sunrise and Sunset times in Spearfish, United States 
Today:
 Sunrise: 07:16:19
|
 Sunset: 16:15:51
|
Day Length: 8h 59m 32s
Time zone: America/Denver, UTC -7 h.
Latitude: 44.4912, Longitude: -103.817
Spearfish
South Dakota, United States 
12 675 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Dec-01, Monday | 07:12:03 | 11:44:29 | 16:16:55 | 9h 4m 52s |
| 2025-Dec-02, Tuesday | 07:13:09 | 11:44:52 | 16:16:35 | 9h 3m 26s |
| 2025-Dec-03, Wednesday | 07:14:14 | 11:45:16 | 16:16:18 | 9h 2m 4s |
| 2025-Dec-04, Thursday | 07:15:17 | 11:45:40 | 16:16:03 | 9h 0m 46s |
| 2025-Dec-05, Friday | 07:16:19 | 11:46:05 | 16:15:51 | 8h 59m 32s |
| 2025-Dec-06, Saturday | 07:17:19 | 11:46:30 | 16:15:42 | 8h 58m 23s |
| 2025-Dec-07, Sunday | 07:18:18 | 11:46:56 | 16:15:35 | 8h 57m 17s |
| 2025-Dec-08, Monday | 07:19:15 | 11:47:23 | 16:15:30 | 8h 56m 15s |
| 2025-Dec-09, Tuesday | 07:20:10 | 11:47:49 | 16:15:29 | 8h 55m 19s |
| 2025-Dec-10, Wednesday | 07:21:04 | 11:48:17 | 16:15:30 | 8h 54m 26s |
| 2025-Dec-11, Thursday | 07:21:55 | 11:48:44 | 16:15:33 | 8h 53m 38s |
| 2025-Dec-12, Friday | 07:22:45 | 11:49:12 | 16:15:40 | 8h 52m 55s |
| 2025-Dec-13, Saturday | 07:23:33 | 11:49:41 | 16:15:48 | 8h 52m 15s |
| 2025-Dec-14, Sunday | 07:24:19 | 11:50:09 | 16:16:00 | 8h 51m 41s |
| 2025-Dec-15, Monday | 07:25:03 | 11:50:38 | 16:16:14 | 8h 51m 11s |
| 2025-Dec-16, Tuesday | 07:25:45 | 11:51:07 | 16:16:30 | 8h 50m 45s |
| 2025-Dec-17, Wednesday | 07:26:24 | 11:51:37 | 16:16:49 | 8h 50m 25s |
| 2025-Dec-18, Thursday | 07:27:02 | 11:52:06 | 16:17:11 | 8h 50m 9s |
| 2025-Dec-19, Friday | 07:27:37 | 11:52:36 | 16:17:35 | 8h 49m 58s |
| 2025-Dec-20, Saturday | 07:28:10 | 11:53:06 | 16:18:02 | 8h 49m 52s |
| 2025-Dec-21, Sunday | 07:28:40 | 11:53:35 | 16:18:31 | 8h 49m 51s |
| 2025-Dec-22, Monday | 07:29:09 | 11:54:05 | 16:19:02 | 8h 49m 53s |
| 2025-Dec-23, Tuesday | 07:29:34 | 11:54:35 | 16:19:36 | 8h 50m 2s |
| 2025-Dec-24, Wednesday | 07:29:58 | 11:55:05 | 16:20:12 | 8h 50m 14s |
| 2025-Dec-25, Thursday | 07:30:19 | 11:55:35 | 16:20:50 | 8h 50m 31s |
| 2025-Dec-26, Friday | 07:30:37 | 11:56:04 | 16:21:31 | 8h 50m 54s |
| 2025-Dec-27, Saturday | 07:30:53 | 11:56:34 | 16:22:14 | 8h 51m 21s |
| 2025-Dec-28, Sunday | 07:31:07 | 11:57:03 | 16:22:59 | 8h 51m 52s |
| 2025-Dec-29, Monday | 07:31:18 | 11:57:32 | 16:23:46 | 8h 52m 28s |
| 2025-Dec-30, Tuesday | 07:31:26 | 11:58:01 | 16:24:36 | 8h 53m 10s |
| 2025-Dec-31, Wednesday | 07:31:32 | 11:58:30 | 16:25:27 | 8h 53m 55s |
Day length in Spearfish during the year on the chart:
Spearfish 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