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MDT – Mountain Daylight Time

Current Offset:UTC-6(Daylight Time Active)

Timezone Overview

Mountain Daylight Time (MDT) is a time standard used across the North America region. The current local UTC offset is UTC-6. MDT (UTC-6) represents the daylight saving time period of Mountain Time (MT). When active, clocks advance one hour ahead of standard time (MST, UTC-7).

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Mountain Time (MT) Variant

Standard Time Counterpart: MST

MDT is the daylight-saving variant (UTC-6) of Mountain Time. During the standard-time period in autumn and winter, regions following Mountain Time return to Mountain Standard Time (MST, UTC-7).

View MST Timezone →

MDT Timezone Details

Abbreviation
MDT
Standard Offset
UTC-7
Current Offset
UTC-6
Daylight Offset
UTC-6
DST Status
Active (Daylight)
IANA Identifier
America/Denver
Region
North America
Clock Changes
Seasonal (2x/year)

Daylight Saving Time (DST) Information

Mountain Daylight Time (MDT) participates in daylight saving time adjustments. During the standard time period, clocks operate at UTC-7, and during the daylight saving period, clocks advance by 1 hour to UTC-6.

Standard Time
UTC-7
MST
Daylight Saving Time
UTC-6
MDT

Specific changeover dates depend on jurisdictional regulations. In North America transitions generally take place in March and November, in Europe transitions occur in late March and late October, and Southern Hemisphere zones transition between October and April.

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Major Cities in MDT Time

Representative cities currently observing Mountain Daylight Time (MDT) with their live local times.

4 major cities listed
CityCountryCurrent TimeCurrent Offset
DenverUnited States12:19 AMUTC-6
El PasoUnited States12:19 AMUTC-6
AlbuquerqueUnited States12:19 AMUTC-6
Salt Lake CityUnited States12:19 AMUTC-6

Countries & Territories Represented

United States

Other North America Timezones

EST
UTC-5
EDT
UTC-4
CST
UTC-6
CDT
UTC-5
MST
UTC-7
PST
UTC-8

Frequently Asked Questions about MDT

Accurate, factual answers regarding Mountain Daylight Time (MDT) and its seasonal schedule.

What is MDT and what does it stand for?

MDT stands for Mountain Daylight Time. It is a civil time standard used in North America with a standard offset of UTC-7 from Coordinated Universal Time (UTC). Its current offset is UTC-6.

Does MDT observe Daylight Saving Time (DST)?

Yes, Mountain Daylight Time participates in seasonal daylight saving time shifts. Standard time is UTC-7 and daylight saving time is UTC-6. Clocks in this zone are currently advancing for daylight saving time.

What is the difference between MDT and MST?

MDT is the daylight-saving variant (UTC-6) of Mountain Time. During the standard-time period in autumn and winter, regions following Mountain Time return to Mountain Standard Time (MST, UTC-7).

Which major cities use MDT?

Major cities operating in or aligned with Mountain Daylight Time include Denver (United States), El Paso (United States), Albuquerque (United States), Salt Lake City (United States).

How do I convert MDT to another timezone?

To convert MDT (UTC-6) to your local time or another zone, calculate the hour difference between your local UTC offset and UTC-6. You can also use the live interactive converters listed on this page for instant side-by-side time comparisons.