Castro Valley in numbers
- Coordinates
- 37.6941, -122.0860
- Population
- 61 388
- Region
- California
- Country
- United States, North America
- Capital
- Washington, D.C. — 3893 km away
What time is it in Castro Valley, California, United States
The clock above shows the current local time in Castro Valley, California, United States, which uses America/Los_Angeles (−8).
Castro Valley, United States
Sunday, 1 November 2026
UTC−8 · America/Los_Angeles
Local time in Castro Valley
UTC−8 · no daylight saving time
Local time in Castro Valley, California.
The sun today
Sunrise 6:35 AM Solar noon 11:53 AM Sunset 5:11 PM Daylight 10 h 37 min Night 13 h 23 min Civil twilight 6:08 AM – 5:39 PM
Weather in Castro Valley right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Castro Valley and its neighbours
Postal codes
- 94546
- 94552
Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.
Largest cities in California
- Los Angeles 3 820 914
- San Diego 1 404 452
- San Jose 997 368
- San Francisco 827 526
- Fresno 542 107
- Sacramento 524 943
Same time zone — America/Los_Angeles
- Los Angeles United States
- San Diego United States
- San Jose United States
- San Francisco United States
- Seattle United States
- Portland United States
Nearby places
- Cherryland — 2.2 km
- Ashland — 2.5 km
- Hayward — 2.8 km
- San Lorenzo — 3.6 km
- Lorenzo Station — 3.9 km
- Fairview — 3.9 km
Castro Valley: clock, sun and surroundings
For Cherryland and Ashland near Castro Valley, the clock reads the same.
Postal coverage of Castro Valley comes to 2 codes.
Castro Valley adheres to America/Los_Angeles, a UTC−8 offset. Daylight saving time observed: No.
Today's schedule for Castro Valley: sunrise 6:35 AM, sunset 5:11 PM. That gives 10 h 37 min of daylight.
Questions and answers
- Which time zone governs time in Castro Valley?
- Time in Castro Valley follows the America/Los_Angeles time zone, with an offset of −8.
- Should I expect a daylight saving change in Castro Valley?
- No.
- Is there a set time for sunset in Castro Valley?
- Today the sun sets at 5:11 PM.