Sunrise and Sunset times in Rock Valley, United States 
Today:
 Sunrise: 07:50:53
|
 Sunset: 17:21:36
|
Day Length: 9h 30m 43s
Time zone: America/Chicago, UTC -6 h.
Latitude: 43.2042, Longitude: -96.2909
Rock Valley
Iowa, United States 
3 409 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2026-Jan-01, Thursday | 07:57:04 | 12:28:51 | 17:00:38 | 9h 3m 34s |
| 2026-Jan-02, Friday | 07:57:06 | 12:29:19 | 17:01:32 | 9h 4m 26s |
| 2026-Jan-03, Saturday | 07:57:06 | 12:29:47 | 17:02:27 | 9h 5m 21s |
| 2026-Jan-04, Sunday | 07:57:04 | 12:30:14 | 17:03:24 | 9h 6m 20s |
| 2026-Jan-05, Monday | 07:56:58 | 12:30:41 | 17:04:23 | 9h 7m 25s |
| 2026-Jan-06, Tuesday | 07:56:51 | 12:31:07 | 17:05:23 | 9h 8m 32s |
| 2026-Jan-07, Wednesday | 07:56:41 | 12:31:33 | 17:06:25 | 9h 9m 44s |
| 2026-Jan-08, Thursday | 07:56:28 | 12:31:58 | 17:07:28 | 9h 11m 0s |
| 2026-Jan-09, Friday | 07:56:13 | 12:32:23 | 17:08:32 | 9h 12m 19s |
| 2026-Jan-10, Saturday | 07:55:56 | 12:32:47 | 17:09:38 | 9h 13m 42s |
| 2026-Jan-11, Sunday | 07:55:36 | 12:33:11 | 17:10:45 | 9h 15m 9s |
| 2026-Jan-12, Monday | 07:55:14 | 12:33:34 | 17:11:54 | 9h 16m 40s |
| 2026-Jan-13, Tuesday | 07:54:50 | 12:33:56 | 17:13:03 | 9h 18m 13s |
| 2026-Jan-14, Wednesday | 07:54:23 | 12:34:18 | 17:14:14 | 9h 19m 51s |
| 2026-Jan-15, Thursday | 07:53:54 | 12:34:39 | 17:15:25 | 9h 21m 31s |
| 2026-Jan-16, Friday | 07:53:22 | 12:35:00 | 17:16:38 | 9h 23m 16s |
| 2026-Jan-17, Saturday | 07:52:48 | 12:35:20 | 17:17:51 | 9h 25m 3s |
| 2026-Jan-18, Sunday | 07:52:12 | 12:35:39 | 17:19:05 | 9h 26m 53s |
| 2026-Jan-19, Monday | 07:51:34 | 12:35:57 | 17:20:20 | 9h 28m 46s |
| 2026-Jan-20, Tuesday | 07:50:53 | 12:36:15 | 17:21:36 | 9h 30m 43s |
| 2026-Jan-21, Wednesday | 07:50:11 | 12:36:31 | 17:22:52 | 9h 32m 41s |
| 2026-Jan-22, Thursday | 07:49:26 | 12:36:48 | 17:24:09 | 9h 34m 43s |
| 2026-Jan-23, Friday | 07:48:39 | 12:37:03 | 17:25:27 | 9h 36m 48s |
| 2026-Jan-24, Saturday | 07:47:50 | 12:37:17 | 17:26:45 | 9h 38m 55s |
| 2026-Jan-25, Sunday | 07:46:59 | 12:37:31 | 17:28:03 | 9h 41m 4s |
| 2026-Jan-26, Monday | 07:46:06 | 12:37:44 | 17:29:22 | 9h 43m 16s |
| 2026-Jan-27, Tuesday | 07:45:11 | 12:37:56 | 17:30:41 | 9h 45m 30s |
| 2026-Jan-28, Wednesday | 07:44:14 | 12:38:07 | 17:32:01 | 9h 47m 47s |
| 2026-Jan-29, Thursday | 07:43:15 | 12:38:18 | 17:33:21 | 9h 50m 6s |
| 2026-Jan-30, Friday | 07:42:14 | 12:38:28 | 17:34:41 | 9h 52m 27s |
| 2026-Jan-31, Saturday | 07:41:12 | 12:38:37 | 17:36:01 | 9h 54m 49s |
Day length in Rock Valley during the year on the chart:
Rock Valley on United States map:
Locations in the same time zone America/Chicago
Chicago (Illinois), Dallas (Texas), Houston (Texas), Minneapolis (Minnesota), St. Louis (Missouri), San Antonio (Texas), Austin (Texas), Kansas City (Missouri), Montevideo (Montevideo), Milwaukee (Wisconsin), Prague (Praha, Hlavní Město), Nashville (Tennessee), Memphis (Tennessee), New Orleans (Louisiana), Oklahoma City (Oklahoma), Fort Worth (Texas), Omaha (Nebraska), McAllen (Texas), Birmingham (Alabama), Tulsa (Oklahoma), Baton Rouge (Louisiana), Wichita (Kansas), Des Moines (Iowa), Little Rock (Arkansas), Denton (Texas), Madison (Wisconsin), Arlington (Texas), Pensacola (Florida), Fayetteville (Arkansas), Corpus Christi (Texas)
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