San Mateo County in numbers
- Coordinates
- 37.4362, -122.3560
- Region
- California
- Country
- United States, North America
- Capital
- Washington, D.C. — 3924 km away
What time is it in San Mateo County, California, United States
This page shows the time as it is now in San Mateo County, California, United States, in the America/Los_Angeles time zone (−8).
San Mateo County, United States
Sunday, 8 November 2026
UTC−8 · America/Los_Angeles
Local time in San Mateo County
UTC−8 · no daylight saving time
San Mateo County keeps America/Los_Angeles clock_time.
The sun today
Sunrise 6:43 AM Solar noon 11:54 AM Sunset 5:06 PM Daylight 10 h 23 min Night 13 h 37 min Civil twilight 6:15 AM – 5:33 PM
Weather in San Mateo County right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
San Mateo County and its neighbours
Postal codes
- 94062 Redwood City — 5.5 km away
- 94026 Menlo Park — 6.4 km away
- 94064 Redwood City — 6.4 km away
- 94019 Half Moon Bay — 9.3 km away
- 94070 San Carlos — 10.4 km away
- 94002 Belmont — 10.6 km away
- 94497 San Mateo — 11.3 km away
- 94074 San Gregorio — 12.3 km away
- 94403 San Mateo — 12.5 km away
- 94402 San Mateo — 13.0 km away
- 94018 El Granada — 13.2 km away
- 94065 Redwood City — 14.3 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
- Grabtown — 1.9 km
- Redwood Park — 3.1 km
- Purisima (historical) — 6.2 km
- Lobitos — 7.1 km
- Half Moon Bay — 7.1 km
- Adobe Corner — 8.0 km
About the time in San Mateo County
The sun rises over San Mateo County today at 6:43 AM and slips away at 5:06 PM. That leaves 10 h 23 min of daylight.
The clock in nearby Grabtown and Redwood Park follows San Mateo County.
San Mateo County is split into 12 postal code areas.
San Mateo County observes America/Los_Angeles time, currently expressed as UTC−8. Daylight saving time here: No.
Questions and answers
- What time zone is the clock in San Mateo County based on?
- The clock in San Mateo County is based on America/Los_Angeles, with an offset of −8.
- Does San Mateo County observe a seasonal time shift?
- Daylight saving in San Mateo County: No.
- What time is first light in San Mateo County?
- The sun rises at 6:43 AM.