Sunrise and Sunset times in Oak Brook, United States 
Today:
 Sunrise: 07:15:34
|
 Sunset: 16:48:21
|
Day Length: 9h 32m 47s
Time zone: America/Chicago, UTC -6 h.
Latitude: 41.8372, Longitude: -87.9512
Oak Brook
Illinois, United States 
8 077 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2026-Jan-01, Thursday | 07:19:15 | 11:55:29 | 16:31:43 | 9h 12m 28s |
| 2026-Jan-02, Friday | 07:19:18 | 11:55:57 | 16:32:35 | 9h 13m 17s |
| 2026-Jan-03, Saturday | 07:19:20 | 11:56:24 | 16:33:29 | 9h 14m 9s |
| 2026-Jan-04, Sunday | 07:19:19 | 11:56:52 | 16:34:24 | 9h 15m 5s |
| 2026-Jan-05, Monday | 07:19:15 | 11:57:18 | 16:35:21 | 9h 16m 6s |
| 2026-Jan-06, Tuesday | 07:19:10 | 11:57:45 | 16:36:20 | 9h 17m 10s |
| 2026-Jan-07, Wednesday | 07:19:02 | 11:58:11 | 16:37:20 | 9h 18m 18s |
| 2026-Jan-08, Thursday | 07:18:51 | 11:58:36 | 16:38:21 | 9h 19m 30s |
| 2026-Jan-09, Friday | 07:18:39 | 11:59:01 | 16:39:23 | 9h 20m 44s |
| 2026-Jan-10, Saturday | 07:18:24 | 11:59:25 | 16:40:27 | 9h 22m 3s |
| 2026-Jan-11, Sunday | 07:18:06 | 11:59:49 | 16:41:31 | 9h 23m 25s |
| 2026-Jan-12, Monday | 07:17:46 | 12:00:12 | 16:42:37 | 9h 24m 51s |
| 2026-Jan-13, Tuesday | 07:17:25 | 12:00:34 | 16:43:44 | 9h 26m 19s |
| 2026-Jan-14, Wednesday | 07:17:00 | 12:00:56 | 16:44:52 | 9h 27m 52s |
| 2026-Jan-15, Thursday | 07:16:34 | 12:01:17 | 16:46:01 | 9h 29m 27s |
| 2026-Jan-16, Friday | 07:16:05 | 12:01:38 | 16:47:11 | 9h 31m 6s |
| 2026-Jan-17, Saturday | 07:15:34 | 12:01:58 | 16:48:21 | 9h 32m 47s |
| 2026-Jan-18, Sunday | 07:15:01 | 12:02:17 | 16:49:32 | 9h 34m 31s |
| 2026-Jan-19, Monday | 07:14:26 | 12:02:35 | 16:50:44 | 9h 36m 18s |
| 2026-Jan-20, Tuesday | 07:13:48 | 12:02:53 | 16:51:57 | 9h 38m 9s |
| 2026-Jan-21, Wednesday | 07:13:09 | 12:03:10 | 16:53:10 | 9h 40m 1s |
| 2026-Jan-22, Thursday | 07:12:27 | 12:03:26 | 16:54:24 | 9h 41m 57s |
| 2026-Jan-23, Friday | 07:11:43 | 12:03:41 | 16:55:38 | 9h 43m 55s |
| 2026-Jan-24, Saturday | 07:10:58 | 12:03:56 | 16:56:53 | 9h 45m 55s |
| 2026-Jan-25, Sunday | 07:10:10 | 12:04:09 | 16:58:08 | 9h 47m 58s |
| 2026-Jan-26, Monday | 07:09:20 | 12:04:22 | 16:59:24 | 9h 50m 4s |
| 2026-Jan-27, Tuesday | 07:08:29 | 12:04:34 | 17:00:40 | 9h 52m 11s |
| 2026-Jan-28, Wednesday | 07:07:35 | 12:04:46 | 17:01:56 | 9h 54m 21s |
| 2026-Jan-29, Thursday | 07:06:40 | 12:04:56 | 17:03:12 | 9h 56m 32s |
| 2026-Jan-30, Friday | 07:05:43 | 12:05:06 | 17:04:29 | 9h 58m 46s |
| 2026-Jan-31, Saturday | 07:04:44 | 12:05:15 | 17:05:46 | 10h 1m 2s |
Day length in Oak Brook during the year on the chart:
Oak Brook 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