United States
Time now in San Mateo
Sunrise 06:30Sunset 07:54Time zone UTC −7
Time zone
America/Los_Angeles
UTC offset
UTC −7
Daylight saving
In effect now
Population
103,536
Sunrise
06:30
Sunset
07:54
Day length
13h 24m
Coordinates
37.56, -122.33
Time difference from San Mateo
Hours ahead (right) or behind (left) San Mateo right now.
San Mateo on the map
About the time in San Mateo
Sunrise today lands at 06:30 and sunset at 07:54 local time, giving 13h 24m of daylight. Those figures come from the city's own coordinates (37.56, -122.33) rather than a country-wide average, so they match what you would actually see from a window in San Mateo.
San Mateo runs on America/Los_Angeles, which puts the city UTC −7 from Coordinated Universal Time right now. The clock at the top of this page is not copied from your device: it is anchored to our reference timestamp and re-rendered every second against the IANA time zone database, so it stays right even when a laptop or phone has quietly drifted.
San Mateo sits at latitude 37.56, in the mid-latitude band, so day length here swings noticeably between midwinter and midsummer — today's 13h 24m is one point on that curve, not a fixed value.
Frequently asked questions about time in San Mateo
- Which time zone is San Mateo in?
- San Mateo uses America/Los_Angeles, currently UTC −7.
- What time is it in San Mateo right now?
- The live clock above shows the current time in San Mateo, updating every second from America/Los_Angeles (UTC −7).
- What are normal business hours in San Mateo in UTC?
- A 09:00–17:00 working day in San Mateo runs from 16:00–00:00 UTC today.
- Does San Mateo change its clocks for daylight saving?
- Yes, and it is in effect now. Clocks change again on 1 November 2026.
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