What does MDT stand for?

MDT stands for Mountain Daylight Time. It is UTC-6, used in US Mountain West (summer).

What is the UTC offset of MDT?

MDT (Mountain Daylight Time) is UTC-6, meaning it is 6 hours behind Coordinated Universal Time.

What is the standard-time version of MDT?

MDT is the summer (daylight saving) abbreviation. Its counterpart is MST (Mountain Standard Time, UTC-7), used in the other half of the year.

MDT — Mountain Daylight Time

MDT

Mountain Daylight Time

UTC-6 Daylight saving ↔ MST

US Mountain West (summer)

Now in Denver: 1:59 AM

Quick facts

Abbreviation: MDT
Full name: Mountain Daylight Time
UTC offset: UTC-6
Type: Daylight saving time
Seasonal pair: MST (UTC-7)
Used in: US Mountain West (summer)
Example zone: America/Denver

Cities that use MDT

Time in Denver

About MDT

MDT is the abbreviation for Mountain Daylight Time, a time zone offset of UTC-6. It applies in US Mountain West (summer). It is the daylight-saving half of the year; in winter the same region switches to MST (UTC-7).

Time-zone abbreviations are convenient but not unique or official — several codes are shared by more than one zone. When precision matters, use the underlying IANA zone name (for example America/Denver) or the UTC offset UTC-6 instead.

Frequently asked questions

What does MDT stand for?: MDT stands for Mountain Daylight Time. It is UTC-6, used in US Mountain West (summer).
What is the UTC offset of MDT?: MDT (Mountain Daylight Time) is UTC-6, meaning it is 6 hours behind Coordinated Universal Time.
What is the standard-time version of MDT?: MDT is the summer (daylight saving) abbreviation. Its counterpart is MST (Mountain Standard Time, UTC-7), used in the other half of the year.