Contra Costa County in numbers
- Coordinates
- 37.9234, -121.9510
- Region
- California
- Country
- United States, North America
- Capital
- Washington, D.C. — 3875 km away
What time is it in Contra Costa County, California, United States
On this page the local time of Contra Costa County, California, United States is updated live, in the America/Los_Angeles zone (−8).
Contra Costa County, United States
Sunday, 8 November 2026
UTC−8 · America/Los_Angeles
Local time in Contra Costa County
UTC−8 · no daylight saving time
Local time in Contra Costa County, California.
The sun today
Sunrise 6:42 AM Solar noon 11:53 AM Sunset 5:03 PM Daylight 10 h 21 min Night 13 h 39 min Civil twilight 6:14 AM – 5:31 PM
Weather in Contra Costa County right now
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Weather data by Open-Meteo, updated every 30 minutes.
Contra Costa County and its neighbours
Postal codes
- 94527 Concord — 3.4 km away
- 94517 Clayton — 3.7 km away
- 94521 Concord — 4.3 km away
- 94598 Walnut Creek — 6.6 km away
- 94518 Concord — 7.2 km away
- 94519 Concord — 8.6 km away
- 94522 Concord — 9.3 km away
- 94524 Concord — 9.3 km away
- 94529 Concord — 9.3 km away
- 94596 Walnut Creek — 9.3 km away
- 94565 Pittsburg — 9.4 km away
- 94528 Diablo — 9.5 km away
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
- Clayton — 2.4 km
- North Gate — 4.5 km
- Cowell — 4.7 km
- Meinert — 7.1 km
- Nortonville — 7.2 km
- Sunny Acres Trailer Park — 8.0 km
About the time in Contra Costa County
Postal codes valid in Contra Costa County number 12.
Contra Costa County is served by the America/Los_Angeles time zone, offset UTC−8. Daylight saving time applies: No.
Expect sunrise at 6:42 AM and sunset at 5:03 PM in Contra Costa County today. Daylight adds up to 10 h 21 min.
Set your clock for Contra Costa County and it will also be right in Clayton and North Gate.
Questions and answers
- What time zone covers Contra Costa County?
- The time zone covering Contra Costa County is America/Los_Angeles, with an offset of −8.
- Does Contra Costa County take part in daylight saving time?
- Daylight saving time in Contra Costa County: No.
- When is the sun down in Contra Costa County?
- The sun goes down at 5:03 PM.