Current Time in MDT
Mountain Daylight Time
About MDT Mountain Daylight Time
The daylight saving time for the Mountain Time Zone in North America. Used in parts of Canada, the United States, and Mexico. It is one hour ahead of Mountain Standard Time (MST). Active from March to November.
UTC Offset: -06:00
MDT at a glance
| Right now | 15:36 on Tuesday |
|---|---|
| UTC offset | UTC-06:00 (6 hours behind UTC) |
| Full name | Mountain Daylight Time |
| Countries | 3 |
| IANA zones | 12 |
What is MDT?
MDT is a time zone that is currently UTC-06:00 - that's 6 hours behind UTC. Its full name is Mountain Daylight Time. Right now the local time on MDT is 15:36. Today 3 countries (including Canada, Mexico and United States) and 12 IANA database zones sit at this offset, which is why MDT is a useful shorthand even though the exact local rules differ from place to place.
How to convert MDT to UTC
For quick planning, use today's offset as a rule of thumb: 12:00 UTC = 06:00 local time, and 09:00 local time = 15:00 UTC. The live clock above is the safest reference when daylight saving or regional rules may apply.
Which countries use MDT?
MDT is used across Canada, Mexico and United States. Open a country to see all of its cities and their local time.
IANA time zones in MDT
MDT maps to the IANA database zones America/Boise, America/Cambridge_Bay, America/Ciudad_Juarez, America/Denver, America/Edmonton and America/Inuvik, among 12 in total. Each zone page shows its exact rules, including any daylight saving changes.
💡 Tip: Comparing times? MDT is 6 hours behind UTC. Use the IANA links and country links on this page when you need the exact local rule for a real place, not just the offset.
MDT - Frequently asked questions
What is MDT?
MDT is a time zone currently UTC-06:00 (6 hours behind UTC). Its full name is Mountain Daylight Time.
What is the UTC offset of MDT?
MDT is UTC-06:00 right now - 6 hours behind UTC.
Which countries are on MDT?
MDT is used in Canada, Mexico and United States.
What time is it in MDT now?
The current time on MDT is 15:36 on Tuesday. The clock above updates every second.
How Alarm.now explains MDT
Abbreviation, offset, and IANA zones
MDT is shown as a time-zone group for Mountain Daylight Time with offset -06:00. The page links the abbreviation to the IANA zones and countries that use it, so users and search engines can distinguish a short label from an exact time-zone rule set.
When to use a specific IANA page
Use this group page for an overview of the abbreviation and offset. Use a linked IANA time-zone page when you need exact daylight-saving rules for a calendar, app, or future-date comparison.