Current time in Denver

United States · UTC-7/UTC-6

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America/Denver

UTC offset

UTC-7/UTC-6

Daylight Saving

Yes — observed

Time zone ID

America/Denver

Business hours

8:00 AM – 5:00 PM MT (Monday–Friday)

About Denver's time zone

Denver operates on Mountain Time (MT), using MST (UTC-7) in winter and MDT (UTC-6) during daylight saving from the second Sunday in March to the first Sunday in November. As the 'Gateway to the Rocky Mountains,' Denver's Mountain Time zone is shared by most of the interior American West. Denver's time zone provides a unique 2-hour buffer from New York: Denver's 9:00 AM opens to an already active 11:00 AM New York market, giving Denver traders extra context before placing orders.

Best time to call Denver

Calling from	Recommended window
New York	10:00 AM – 7:00 PM ET
London	3:00 PM – 12:00 AM GMT
Los Angeles	8:00 AM – 5:00 PM PT
Chicago	9:00 AM – 6:00 PM CT

Did you know? Denver's famous 'Mile High City' designation (exactly 5,280 feet above sea level) has a curious connection to time: at high altitude, time actually passes slightly faster than at sea level due to gravitational time dilation (predicted by Einstein's General Relativity). The effect is tiny — about 22 microseconds per year faster than sea level — but atomic clocks in Denver must be calibrated differently than those at lower elevations.

Cities in the same time zone