MDT — Mountain Daylight Time — Current Time
UTC-6 · Americas · Daylight Saving Time
Current MDT time
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Mountain Daylight Time · UTC-6
Timezone Details
- Full Name
- Mountain Daylight Time
- UTC Offset
- UTC-6
- Type
- Daylight Saving Time
- IANA Timezone
- America/Denver
- Region
- Americas
Observed In
- United States
- Canada
About MDT
Mountain Daylight Time (MDT) is UTC−6, observed in the Mountain US and Canada during summer Daylight Saving Time. Arizona does not observe MDT.
Cities Using MDT
Convert MDT Time
Frequently Asked Questions about MDT
MDT stands for Mountain Daylight Time. It is UTC-6 (-6 hours from UTC). Mountain Daylight Time (MDT) is UTC−6, observed in the Mountain US and Canada during summer Daylight Saving Time. Arizona does not observe MDT.
MDT (Mountain Daylight Time) is observed in: United States, Canada.
Yes. MDT (Mountain Daylight Time) is UTC-6, which means it is 6 hours behind Coordinated Universal Time (UTC).
MDT is itself a Daylight Saving Time designation — it is the DST variant of the Mountain Daylight Time zone. During standard time, the same region observes a different abbreviation.
The primary IANA (Internet Assigned Numbers Authority) timezone identifier for MDT is "America/Denver". IANA identifiers are used by computers and operating systems for precise timezone handling, including DST rules.
View the full Timezone Abbreviations Reference for all abbreviations organised by region.