Sunrise and Sunset times in Herndon, United States 
Today:
 Sunrise: 08:04:32
|
 Sunset: 17:28:12
|
Day Length: 9h 23m 40s
Time zone: America/Chicago, UTC -6 h.
Latitude: 39.909, Longitude: -100.786
Herndon
Kansas, United States 
126 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Dec-01, Monday | 07:45:57 | 12:32:21 | 17:18:45 | 9h 32m 48s |
| 2025-Dec-02, Tuesday | 07:46:56 | 12:32:44 | 17:18:32 | 9h 31m 36s |
| 2025-Dec-03, Wednesday | 07:47:54 | 12:33:08 | 17:18:22 | 9h 30m 28s |
| 2025-Dec-04, Thursday | 07:48:51 | 12:33:32 | 17:18:14 | 9h 29m 23s |
| 2025-Dec-05, Friday | 07:49:46 | 12:33:57 | 17:18:08 | 9h 28m 22s |
| 2025-Dec-06, Saturday | 07:50:41 | 12:34:23 | 17:18:05 | 9h 27m 24s |
| 2025-Dec-07, Sunday | 07:51:34 | 12:34:49 | 17:18:03 | 9h 26m 29s |
| 2025-Dec-08, Monday | 07:52:26 | 12:35:15 | 17:18:04 | 9h 25m 38s |
| 2025-Dec-09, Tuesday | 07:53:16 | 12:35:42 | 17:18:07 | 9h 24m 51s |
| 2025-Dec-10, Wednesday | 07:54:05 | 12:36:09 | 17:18:13 | 9h 24m 8s |
| 2025-Dec-11, Thursday | 07:54:53 | 12:36:37 | 17:18:21 | 9h 23m 28s |
| 2025-Dec-12, Friday | 07:55:39 | 12:37:05 | 17:18:31 | 9h 22m 52s |
| 2025-Dec-13, Saturday | 07:56:23 | 12:37:33 | 17:18:43 | 9h 22m 20s |
| 2025-Dec-14, Sunday | 07:57:06 | 12:38:02 | 17:18:57 | 9h 21m 51s |
| 2025-Dec-15, Monday | 07:57:48 | 12:38:31 | 17:19:13 | 9h 21m 25s |
| 2025-Dec-16, Tuesday | 07:58:27 | 12:39:00 | 17:19:32 | 9h 21m 5s |
| 2025-Dec-17, Wednesday | 07:59:05 | 12:39:29 | 17:19:53 | 9h 20m 48s |
| 2025-Dec-18, Thursday | 07:59:41 | 12:39:59 | 17:20:16 | 9h 20m 35s |
| 2025-Dec-19, Friday | 08:00:16 | 12:40:28 | 17:20:41 | 9h 20m 25s |
| 2025-Dec-20, Saturday | 08:00:48 | 12:40:58 | 17:21:08 | 9h 20m 20s |
| 2025-Dec-21, Sunday | 08:01:18 | 12:41:28 | 17:21:37 | 9h 20m 19s |
| 2025-Dec-22, Monday | 08:01:47 | 12:41:58 | 17:22:08 | 9h 20m 21s |
| 2025-Dec-23, Tuesday | 08:02:13 | 12:42:27 | 17:22:41 | 9h 20m 28s |
| 2025-Dec-24, Wednesday | 08:02:38 | 12:42:57 | 17:23:17 | 9h 20m 39s |
| 2025-Dec-25, Thursday | 08:03:01 | 12:43:27 | 17:23:53 | 9h 20m 52s |
| 2025-Dec-26, Friday | 08:03:21 | 12:43:57 | 17:24:32 | 9h 21m 11s |
| 2025-Dec-27, Saturday | 08:03:39 | 12:44:26 | 17:25:13 | 9h 21m 34s |
| 2025-Dec-28, Sunday | 08:03:56 | 12:44:55 | 17:25:55 | 9h 21m 59s |
| 2025-Dec-29, Monday | 08:04:10 | 12:45:24 | 17:26:39 | 9h 22m 29s |
| 2025-Dec-30, Tuesday | 08:04:22 | 12:45:53 | 17:27:25 | 9h 23m 3s |
| 2025-Dec-31, Wednesday | 08:04:32 | 12:46:22 | 17:28:12 | 9h 23m 40s |
Day length in Herndon during the year on the chart:
Herndon 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