Sunrise and Sunset times in Big Rock, United States 
Today:
 Sunrise: 07:11:30
|
 Sunset: 18:06:27
|
Day Length: 10h 54m 57s
Time zone: America/Chicago, UTC -5 h.
Latitude: 41.7669, Longitude: -88.5264
Big Rock
🌤 Possibly a moderately beautiful sunset.
Illinois, United States 
1 155 people
Current temperature 15 ° C 
Patchy rain nearby
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Oct-01, Wednesday | 06:51:31 | 12:43:36 | 18:35:40 | 11h 44m 9s |
| 2025-Oct-02, Thursday | 06:52:36 | 12:43:16 | 18:33:57 | 11h 41m 21s |
| 2025-Oct-03, Friday | 06:53:40 | 12:42:58 | 18:32:16 | 11h 38m 36s |
| 2025-Oct-04, Saturday | 06:54:45 | 12:42:39 | 18:30:34 | 11h 35m 49s |
| 2025-Oct-05, Sunday | 06:55:49 | 12:42:21 | 18:28:53 | 11h 33m 4s |
| 2025-Oct-06, Monday | 06:56:55 | 12:42:04 | 18:27:13 | 11h 30m 18s |
| 2025-Oct-07, Tuesday | 06:58:00 | 12:41:47 | 18:25:33 | 11h 27m 33s |
| 2025-Oct-08, Wednesday | 06:59:06 | 12:41:30 | 18:23:54 | 11h 24m 48s |
| 2025-Oct-09, Thursday | 07:00:12 | 12:41:13 | 18:22:15 | 11h 22m 3s |
| 2025-Oct-10, Friday | 07:01:18 | 12:40:58 | 18:20:37 | 11h 19m 19s |
| 2025-Oct-11, Saturday | 07:02:25 | 12:40:42 | 18:18:59 | 11h 16m 34s |
| 2025-Oct-12, Sunday | 07:03:32 | 12:40:27 | 18:17:22 | 11h 13m 50s |
| 2025-Oct-13, Monday | 07:04:39 | 12:40:13 | 18:15:46 | 11h 11m 7s |
| 2025-Oct-14, Tuesday | 07:05:47 | 12:39:59 | 18:14:11 | 11h 8m 24s |
| 2025-Oct-15, Wednesday | 07:06:55 | 12:39:46 | 18:12:37 | 11h 5m 42s |
| 2025-Oct-16, Thursday | 07:08:03 | 12:39:33 | 18:11:03 | 11h 3m 0s |
| 2025-Oct-17, Friday | 07:09:11 | 12:39:21 | 18:09:30 | 11h 0m 19s |
| 2025-Oct-18, Saturday | 07:10:20 | 12:39:09 | 18:07:58 | 10h 57m 38s |
| 2025-Oct-19, Sunday | 07:11:30 | 12:38:58 | 18:06:27 | 10h 54m 57s |
| 2025-Oct-20, Monday | 07:12:39 | 12:38:48 | 18:04:57 | 10h 52m 18s |
| 2025-Oct-21, Tuesday | 07:13:49 | 12:38:38 | 18:03:28 | 10h 49m 39s |
| 2025-Oct-22, Wednesday | 07:14:59 | 12:38:30 | 18:02:00 | 10h 47m 1s |
| 2025-Oct-23, Thursday | 07:16:09 | 12:38:21 | 18:00:33 | 10h 44m 24s |
| 2025-Oct-24, Friday | 07:17:20 | 12:38:14 | 17:59:07 | 10h 41m 47s |
| 2025-Oct-25, Saturday | 07:18:31 | 12:38:07 | 17:57:42 | 10h 39m 11s |
| 2025-Oct-26, Sunday | 07:19:43 | 12:38:01 | 17:56:19 | 10h 36m 36s |
| 2025-Oct-27, Monday | 07:20:54 | 12:37:55 | 17:54:57 | 10h 34m 3s |
| 2025-Oct-28, Tuesday | 07:22:06 | 12:37:51 | 17:53:36 | 10h 31m 30s |
| 2025-Oct-29, Wednesday | 07:23:18 | 12:37:47 | 17:52:16 | 10h 28m 58s |
| 2025-Oct-30, Thursday | 07:24:30 | 12:37:44 | 17:50:57 | 10h 26m 27s |
| 2025-Oct-31, Friday | 07:25:43 | 12:37:42 | 17:49:40 | 10h 23m 57s |
Day length in Big Rock during the year on the chart:
Big Rock 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