Dominican Republic
Time now in San Mateo
Tuesday, 25 August 2026
Sunrise 06:23Sunset 07:00Time zone UTC −4
Time zone
America/Santo_Domingo
UTC offset
UTC −4
Daylight saving
Not in effect
Population
—
Sunrise
06:23
Sunset
07:00
Day length
12h 37m
Coordinates
18.57, -69.80
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
San Mateo sits at latitude 18.57, in the tropical band, so day length here swings only a little between midwinter and midsummer — today's 12h 37m is one point on that curve, not a fixed value.
Sunrise today lands at 06:23 and sunset at 07:00 local time, giving 12h 37m of daylight. Those figures come from the city's own coordinates (18.57, -69.80) rather than a country-wide average, so they match what you would actually see from a window in San Mateo.
The zone identifier America/Santo_Domingo is the value you want in code, calendars and travel systems. Abbreviations change with the season, but America/Santo_Domingo keeps pointing at Santo Domingo time whatever the date, which is why every timestamp on this page is built from it.
Frequently asked questions about time in San Mateo
- Which time zone is San Mateo in?
- San Mateo uses America/Santo_Domingo, currently UTC −4.
- What are normal business hours in San Mateo in UTC?
- A 09:00–17:00 working day in San Mateo runs from 13:00–21:00 UTC today.
- 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/Santo_Domingo (UTC −4).
- Does San Mateo change its clocks for daylight saving?
- No. San Mateo keeps UTC −4 throughout the year.
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