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MDT – Mountain Daylight Time (Daylight Saving Time)

Time Zone names, codes and abbreviations for Standard Time and Daylight Saving Time (DST) around the world.

Also known as: MDST – Mountain Daylight Saving Time, NAMDT – North American Mountain Daylight Time

Time zone map of MDT
Currently observing MDT.
Areas with same time currently (UTC -6).
Currently observing MDT – Mountain Daylight Time.
Currently has same time zone offset as MDT (UTC -6) but different time zone name.

Mountain Daylight Time (MDT) is 6 hours behind Coordinated Universal Time (UTC). This time zone is a Daylight Saving Time time zone and is used in: North America.

This time zone is often called Mountain Time.

See full time zone map

Winter Time & DST

This time zone is a daylight saving/summer time zone, in the winter some places will switch to the corresponding standard time zone: MST (Mountain Standard Time).

Where and When is MDT Observed?

North America

U.S. states using MDT in the summer and MST in the winter:

Canadian provinces/territories using MDT in the summer and MST in the winter:

Mexican states using MDT in the summer and MST in the winter:

Other Time Zones in UTC -6

Some time zones exist that have the same offset as MDT, but can be found under a different name: