Sunrise and Sunset times in Alum Rock, United States 
Today:
 Sunrise: 07:07:46
|
 Sunset: 16:49:21
|
Day Length: 9h 41m 35s
Time zone: America/Los_Angeles, UTC -8 h.
Latitude: 37.3694, Longitude: -121.824
Alum Rock
California, United States 
12 128 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Dec-01, Monday | 07:03:18 | 11:56:32 | 16:49:45 | 9h 46m 27s |
| 2025-Dec-02, Tuesday | 07:04:14 | 11:56:55 | 16:49:36 | 9h 45m 22s |
| 2025-Dec-03, Wednesday | 07:05:08 | 11:57:19 | 16:49:29 | 9h 44m 21s |
| 2025-Dec-04, Thursday | 07:06:02 | 11:57:43 | 16:49:24 | 9h 43m 22s |
| 2025-Dec-05, Friday | 07:06:54 | 11:58:08 | 16:49:21 | 9h 42m 27s |
| 2025-Dec-06, Saturday | 07:07:46 | 11:58:33 | 16:49:21 | 9h 41m 35s |
| 2025-Dec-07, Sunday | 07:08:36 | 11:58:59 | 16:49:22 | 9h 40m 46s |
| 2025-Dec-08, Monday | 07:09:26 | 11:59:26 | 16:49:26 | 9h 40m 0s |
| 2025-Dec-09, Tuesday | 07:10:14 | 11:59:52 | 16:49:31 | 9h 39m 17s |
| 2025-Dec-10, Wednesday | 07:11:01 | 12:00:20 | 16:49:39 | 9h 38m 38s |
| 2025-Dec-11, Thursday | 07:11:46 | 12:00:47 | 16:49:49 | 9h 38m 3s |
| 2025-Dec-12, Friday | 07:12:30 | 12:01:15 | 16:50:01 | 9h 37m 31s |
| 2025-Dec-13, Saturday | 07:13:13 | 12:01:44 | 16:50:14 | 9h 37m 1s |
| 2025-Dec-14, Sunday | 07:13:55 | 12:02:12 | 16:50:30 | 9h 36m 35s |
| 2025-Dec-15, Monday | 07:14:35 | 12:02:41 | 16:50:48 | 9h 36m 13s |
| 2025-Dec-16, Tuesday | 07:15:13 | 12:03:11 | 16:51:08 | 9h 35m 55s |
| 2025-Dec-17, Wednesday | 07:15:50 | 12:03:40 | 16:51:30 | 9h 35m 40s |
| 2025-Dec-18, Thursday | 07:16:26 | 12:04:09 | 16:51:53 | 9h 35m 27s |
| 2025-Dec-19, Friday | 07:16:59 | 12:04:39 | 16:52:19 | 9h 35m 20s |
| 2025-Dec-20, Saturday | 07:17:31 | 12:05:09 | 16:52:46 | 9h 35m 15s |
| 2025-Dec-21, Sunday | 07:18:02 | 12:05:39 | 16:53:16 | 9h 35m 14s |
| 2025-Dec-22, Monday | 07:18:30 | 12:06:09 | 16:53:47 | 9h 35m 17s |
| 2025-Dec-23, Tuesday | 07:18:57 | 12:06:38 | 16:54:20 | 9h 35m 23s |
| 2025-Dec-24, Wednesday | 07:19:22 | 12:07:08 | 16:54:54 | 9h 35m 32s |
| 2025-Dec-25, Thursday | 07:19:45 | 12:07:38 | 16:55:31 | 9h 35m 46s |
| 2025-Dec-26, Friday | 07:20:06 | 12:08:07 | 16:56:09 | 9h 36m 3s |
| 2025-Dec-27, Saturday | 07:20:26 | 12:08:37 | 16:56:48 | 9h 36m 22s |
| 2025-Dec-28, Sunday | 07:20:43 | 12:09:06 | 16:57:29 | 9h 36m 46s |
| 2025-Dec-29, Monday | 07:20:58 | 12:09:35 | 16:58:12 | 9h 37m 14s |
| 2025-Dec-30, Tuesday | 07:21:12 | 12:10:04 | 16:58:56 | 9h 37m 44s |
| 2025-Dec-31, Wednesday | 07:21:24 | 12:10:33 | 16:59:42 | 9h 38m 18s |
Day length in Alum Rock during the year on the chart:
Alum Rock on United States map:
Locations in the same time zone America/Los_Angeles
Los Angeles (California), Seattle (Washington), San Francisco (California), San Diego (California), Riverside (California), Las Vegas (Nevada), Portland (Oregon), Sacramento (California), San Jose (California), Fresno (California), Concord (California), Mission Viejo (California), Bakersfield (California), Murrieta (California), Long Beach (California), Reno (Nevada), Oakland (California), Indio (California), Spokane (Washington), Stockton (California), Oxnard (California), Modesto (California), Anaheim (California), Lancaster (California), Victorville (California), Santa Ana (California), Santa Rosa (California), Santa Clarita (California), Antioch (California), Henderson (Nevada)
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