Sunrise and Sunset times in Castro Valley, United States
Daily sun schedule, day length and annual chart
Select month and year
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2026-Apr-01, Wednesday | 06:52:49 | 13:12:00 | 19:31:11 | 12h 38m 22s |
| 2026-Apr-02, Thursday | 06:51:20 | 13:11:42 | 19:32:05 | 12h 40m 45s |
| 2026-Apr-03, Friday | 06:49:50 | 13:11:25 | 19:33:00 | 12h 43m 10s |
| 2026-Apr-04, Saturday | 06:48:21 | 13:11:07 | 19:33:54 | 12h 45m 33s |
| 2026-Apr-05, Sunday | 06:46:52 | 13:10:50 | 19:34:49 | 12h 47m 57s |
| 2026-Apr-06, Monday | 06:45:23 | 13:10:33 | 19:35:43 | 12h 50m 20s |
| 2026-Apr-07, Tuesday | 06:43:55 | 13:10:16 | 19:36:38 | 12h 52m 43s |
| 2026-Apr-08, Wednesday | 06:42:27 | 13:10:00 | 19:37:33 | 12h 55m 6s |
| 2026-Apr-09, Thursday | 06:41:00 | 13:09:44 | 19:38:27 | 12h 57m 27s |
| 2026-Apr-10, Friday | 06:39:33 | 13:09:28 | 19:39:22 | 12h 59m 49s |
| 2026-Apr-11, Saturday | 06:38:07 | 13:09:12 | 19:40:17 | 13h 2m 10s |
| 2026-Apr-12, Sunday | 06:36:41 | 13:08:56 | 19:41:11 | 13h 4m 30s |
| 2026-Apr-13, Monday | 06:35:16 | 13:08:41 | 19:42:06 | 13h 6m 50s |
| 2026-Apr-14, Tuesday | 06:33:52 | 13:08:26 | 19:43:01 | 13h 9m 9s |
| 2026-Apr-15, Wednesday | 06:32:28 | 13:08:12 | 19:43:56 | 13h 11m 28s |
| 2026-Apr-16, Thursday | 06:31:05 | 13:07:58 | 19:44:51 | 13h 13m 46s |
| 2026-Apr-17, Friday | 06:29:43 | 13:07:44 | 19:45:46 | 13h 16m 3s |
| 2026-Apr-18, Saturday | 06:28:21 | 13:07:31 | 19:46:41 | 13h 18m 20s |
| 2026-Apr-19, Sunday | 06:27:00 | 13:07:18 | 19:47:36 | 13h 20m 36s |
| 2026-Apr-20, Monday | 06:25:40 | 13:07:05 | 19:48:31 | 13h 22m 51s |
| 2026-Apr-21, Tuesday | 06:24:21 | 13:06:53 | 19:49:26 | 13h 25m 5s |
| 2026-Apr-22, Wednesday | 06:23:02 | 13:06:42 | 19:50:21 | 13h 27m 19s |
| 2026-Apr-23, Thursday | 06:21:45 | 13:06:30 | 19:51:16 | 13h 29m 31s |
| 2026-Apr-24, Friday | 06:20:28 | 13:06:20 | 19:52:11 | 13h 31m 43s |
| 2026-Apr-25, Saturday | 06:19:13 | 13:06:09 | 19:53:06 | 13h 33m 53s |
| 2026-Apr-26, Sunday | 06:17:58 | 13:06:00 | 19:54:01 | 13h 36m 3s |
| 2026-Apr-27, Monday | 06:16:44 | 13:05:50 | 19:54:56 | 13h 38m 12s |
| 2026-Apr-28, Tuesday | 06:15:32 | 13:05:42 | 19:55:51 | 13h 40m 19s |
| 2026-Apr-29, Wednesday | 06:14:20 | 13:05:33 | 19:56:47 | 13h 42m 27s |
| 2026-Apr-30, Thursday | 06:13:10 | 13:05:26 | 19:57:42 | 13h 44m 32s |
Day length in Castro Valley during the year on the chart
Castro Valley 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