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Denver Time Zone — MDT (UTC-06:00)

Denver, USA runs on Mountain Standard Time at UTC-06:00. It is currently observing daylight saving time (UTC-06:00), and will return to standard time (UTC-07:00) on Sun, Nov 1, 2026. Convert Denver time to any city below, or use the full converter.

Current UTC offset
UTC-06:00
IANA zone
America/Denver
Daylight saving
Observed — clocks currently forward
Zone abbreviation
MDT / MST

About the MDT time zone

Mountain Standard Time (MST) covers the Rocky Mountain region of the United States and Canada. Arizona is notable for not observing daylight saving time, staying on MST year-round (except the Navajo Nation). The time zone includes major cities like Denver, Phoenix, Calgary, and Salt Lake City. During summer, most areas switch to Mountain Daylight Time (MDT, UTC-06:00).

Countries on MDT
United States (Mountain)Canada (Alberta)Mexico (Chihuahua, Sonora)
Major cities on MDT
DenverPhoenixSalt Lake CityCalgaryEdmontonAlbuquerqueEl PasoTucsonBoiseCiudad Juárez
Did you know?
  • Denver is exactly one mile above sea level, earning its 'Mile High City' nickname.
  • The city has 300 days of sunshine per year - more than San Diego or Miami.
  • Denver International Airport is the largest airport in North America by land area.

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Everything else on MDT

Learn more about time zones