O'Brien in numbers
- Coordinates
- 40.8121, -122.3240
- Elevation
- 376 m above sea level
- Region
- California
- Country
- United States, North America
- Capital
- Washington, D.C. — 3828 km away
- Same name
- 7 more places in the world share this name
The clock on this page follows the local time of O'Brien, California, United States, in the America/Los_Angeles zone (−8).
O'Brien, United States
Friday, 13 November 2026
UTC−8 · America/Los_Angeles
Local time in O'Brien
UTC−8 · no daylight saving time
O'Brien keeps America/Los_Angeles clock_time.
Sunrise 6:55 AM Solar noon 11:55 AM Sunset 4:54 PM Daylight 9 h 59 min Night 14 h 01 min Civil twilight 6:26 AM – 5:24 PM
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Weather data by Open-Meteo, updated every 30 minutes.
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.
O'Brien stands in America/Los_Angeles, an offset of UTC−8 from Coordinated Universal Time. Daylight saving: No.
The sun rises at 6:55 AM, sets at 4:54 PM, and stays over O'Brien for 9 h 59 min. That is today's daylight.
Nearby places like Lakeview Resort and Baird (historical) are on O'Brien time.
Postal designations for O'Brien total 4.