Current local time in San MateoCalifornia, United States
––:––
America/Los_AngelesUTC−8 / UTC−7
San Mateo keeps Pacific Standard Time (PST, UTC−8) in winter and Pacific Daylight Time (PDT, UTC−7) in summer. Its IANA time zone is America/Los_Angeles.
Daylight saving time in San Mateo
San Mateo changes its clocks twice a year. The next changes, from the IANA time zone database as of October 2026:
- Sun, Nov 1, 2026: clocks go back 1 hour to UTC−8
- Sun, Mar 14, 2027: clocks go forward 1 hour to UTC−7
Cities on the same time as San Mateo
These places show the same clock as San Mateo every day of the coming year, clock changes included.
- In United States
Los Angeles, San Diego, San Jose, San Francisco, Seattle, Portland, Las Vegas, Fresno
- In other countries
Tijuana (Mexico)
San Mateo time zone at a glance
- IANA time zone
- America/Los_Angeles
- UTC offset
- UTC−8 / UTC−7
- Daylight saving
- Observed
- Next clock change
- Sun, Nov 1, 2026 → UTC−8
- Country
- United States
- Region
- California
- Coordinates
- 37.56°, -122.33°
- Population
- 103,536
- Local date
- —
Sunrise and sunset in San Mateo today
Computed from San Mateo's latitude and longitude for the current local date. Times shift by a minute or two either side depending on elevation and the horizon you actually see.
- Sunrise
- —
- Sunset
- —
- Solar noon
- —
- Day length
- —
- Civil dawn
- —
- Civil dusk
- —
- Golden hour ends
- —
- Golden hour begins
- —
San Mateo time difference from major cities
| City | Local time now | San Mateo is |
|---|---|---|
| New York CityUnited States | — | 3h behind |
| LondonUnited Kingdom | — | 8h behind |
| DubaiUnited Arab Emirates | — | 11h behind |
| SingaporeSingapore | — | 15h behind |
| TokyoJapan | — | 16h behind |
| SydneyAustralia | — | 18h behind |
Need a different pair? Compare any two cities or convert a specific time.
San Mateo time: questions and answers
- What time is it in San Mateo right now?
- The clock at the top of this page shows the live local time in San Mateo, updated every second from your device's clock. San Mateo keeps Pacific Standard Time (PST, UTC−8) in winter and Pacific Daylight Time (PDT, UTC−7) in summer.
- What time zone is San Mateo in?
- San Mateo is in the IANA time zone America/Los_Angeles: Pacific Standard Time (PST, UTC−8) in winter and Pacific Daylight Time (PDT, UTC−7) in summer.
- Does San Mateo observe daylight saving time?
- Yes. Upcoming changes: Sun, Nov 1, 2026: clocks go back 1 hour to UTC−8; Sun, Mar 14, 2027: clocks go forward 1 hour to UTC−7.
- Which cities share San Mateo's time?
- Los Angeles, San Diego, San Jose, San Francisco, Seattle, Portland keep the same clock as San Mateo all year.
Planning something with San Mateo?
- Find a meeting time — the hours that overlap between San Mateo and your team.
- Convert a time — turn a time in San Mateo into yours, or the other way round.
- Compare office hours — when San Mateo offices and yours are both open.
- Send a calendar invite — with the America/Los_Angeles time zone set correctly.
Other cities in United States
San Francisco, San Jose, Fresno, Los Angeles, San Diego, Las Vegas, Portland, Seattle, Phoenix, Tucson