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 (−7).
O'Brien, United States
Friday, 23 October 2026
UTC−7 · America/Los_Angeles
Local time in O'Brien
UTC−7 · daylight saving time is active
O'Brien keeps America/Los_Angeles clock_time.
Sunrise 7:30 AM Solar noon 12:55 PM Sunset 6:19 PM Daylight 10 h 48 min Night 13 h 12 min Civil twilight 7:02 AM – 6:47 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−7 from Coordinated Universal Time. Daylight saving: Yes.
The sun rises at 7:30 AM, sets at 6:19 PM, and stays over O'Brien for 10 h 48 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.