Sunrise and Sunset times in O'Fallon, United States 
Today:
 Sunrise: 07:14:53
|
 Sunset: 17:04:45
|
Day Length: 9h 49m 52s
Time zone: America/Chicago, UTC -6 h.
Latitude: 38.5976, Longitude: -89.9156
O'Fallon
Illinois, United States 
29 272 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2026-Jan-01, Thursday | 07:17:21 | 12:03:20 | 16:49:20 | 9h 31m 59s |
| 2026-Jan-02, Friday | 07:17:27 | 12:03:48 | 16:50:10 | 9h 32m 43s |
| 2026-Jan-03, Saturday | 07:17:32 | 12:04:16 | 16:51:00 | 9h 33m 28s |
| 2026-Jan-04, Sunday | 07:17:34 | 12:04:43 | 16:51:52 | 9h 34m 18s |
| 2026-Jan-05, Monday | 07:17:35 | 12:05:10 | 16:52:45 | 9h 35m 10s |
| 2026-Jan-06, Tuesday | 07:17:33 | 12:05:36 | 16:53:40 | 9h 36m 7s |
| 2026-Jan-07, Wednesday | 07:17:29 | 12:06:02 | 16:54:36 | 9h 37m 7s |
| 2026-Jan-08, Thursday | 07:17:23 | 12:06:28 | 16:55:32 | 9h 38m 9s |
| 2026-Jan-09, Friday | 07:17:15 | 12:06:52 | 16:56:30 | 9h 39m 15s |
| 2026-Jan-10, Saturday | 07:17:04 | 12:07:17 | 16:57:29 | 9h 40m 25s |
| 2026-Jan-11, Sunday | 07:16:52 | 12:07:40 | 16:58:29 | 9h 41m 37s |
| 2026-Jan-12, Monday | 07:16:37 | 12:08:03 | 16:59:30 | 9h 42m 53s |
| 2026-Jan-13, Tuesday | 07:16:21 | 12:08:26 | 17:00:31 | 9h 44m 10s |
| 2026-Jan-14, Wednesday | 07:16:02 | 12:08:48 | 17:01:34 | 9h 45m 32s |
| 2026-Jan-15, Thursday | 07:15:41 | 12:09:09 | 17:02:37 | 9h 46m 56s |
| 2026-Jan-16, Friday | 07:15:18 | 12:09:29 | 17:03:40 | 9h 48m 22s |
| 2026-Jan-17, Saturday | 07:14:53 | 12:09:49 | 17:04:45 | 9h 49m 52s |
| 2026-Jan-18, Sunday | 07:14:27 | 12:10:08 | 17:05:50 | 9h 51m 23s |
| 2026-Jan-19, Monday | 07:13:58 | 12:10:27 | 17:06:56 | 9h 52m 58s |
| 2026-Jan-20, Tuesday | 07:13:27 | 12:10:44 | 17:08:02 | 9h 54m 35s |
| 2026-Jan-21, Wednesday | 07:12:54 | 12:11:01 | 17:09:08 | 9h 56m 14s |
| 2026-Jan-22, Thursday | 07:12:19 | 12:11:17 | 17:10:15 | 9h 57m 56s |
| 2026-Jan-23, Friday | 07:11:42 | 12:11:33 | 17:11:23 | 9h 59m 41s |
| 2026-Jan-24, Saturday | 07:11:04 | 12:11:47 | 17:12:30 | 10h 1m 26s |
| 2026-Jan-25, Sunday | 07:10:23 | 12:12:01 | 17:13:38 | 10h 3m 15s |
| 2026-Jan-26, Monday | 07:09:41 | 12:12:14 | 17:14:47 | 10h 5m 6s |
| 2026-Jan-27, Tuesday | 07:08:57 | 12:12:26 | 17:15:55 | 10h 6m 58s |
| 2026-Jan-28, Wednesday | 07:08:11 | 12:12:37 | 17:17:04 | 10h 8m 53s |
| 2026-Jan-29, Thursday | 07:07:23 | 12:12:48 | 17:18:12 | 10h 10m 49s |
| 2026-Jan-30, Friday | 07:06:34 | 12:12:57 | 17:19:21 | 10h 12m 47s |
| 2026-Jan-31, Saturday | 07:05:43 | 12:13:06 | 17:20:30 | 10h 14m 47s |
Day length in O'Fallon during the year on the chart:
O'Fallon 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