MDT Time Now — Mountain Daylight Time

MDT (Mountain Daylight Time) is a fixed offset of UTC−6 — it never changes for daylight saving.

Live Updates every second
UTC−6 Monday, June 22, 2026
06:15:55

Compare with

It is in MDT (Mountain Daylight Time, UTC−6) right now. MDT (Mountain Daylight Time) is a fixed offset of UTC−6 — it never changes for daylight saving.
Daylight saving

Is it MST or MDT right now?

MDT (UTC−6) is in effect right now. Clocks fall back to MST (UTC−7) on November 1, 2026 — in 132 days.
Mar 8Nov 1
MDT · daylight (UTC−6) MST · standard (UTC−7) Today
Clock changes

MST / MDT daylight-saving dates

2026

↑ Forward Sunday, March 8 → MDT
↓ Back Sunday, November 1 → MST

2027

↑ Forward Sunday, March 14 → MDT
↓ Back Sunday, November 7 → MST

Clocks change at 2:00 AM local time. Dates shift by a week or so each year; these are computed live from the IANA time-zone database.

What the letters mean

MST, MDT and Mountain Time

Standard time (winter)
MST — Mountain Standard Time
UTC−7
Daylight time (summer)
MDT — Mountain Daylight Time
UTC−6
When you're not sure
Write Mountain Time — it refers to whichever of MST or MDT is currently in effect, so it's always correct.
Reference

About MDT

Full name
Mountain Daylight Time
UTC offset
UTC−6
Type
Daylight-saving variant (fixed offset)
Standard counterpart
MST — Mountain Standard Time
Where it is used
US Mountain states and Alberta from mid-March to early November.

MDT is the daylight-saving counterpart of MST (UTC−7).

Cities on MDT right now

Frequently asked questions

What does MDT stand for?

MDT stands for Mountain Daylight Time, a UTC offset of UTC−6.

Is MST the same as MDT?

No. MST (UTC−7) is standard (winter) time; MDT (UTC−6) is daylight (summer) time, one hour ahead. The umbrella term “Mountain Time” refers to whichever is in effect, so it is always safe to write Mountain Time when you are unsure.

When do the clocks change for MDT?

In 2026, clocks go forward into MDT on Sunday, March 8 and back into MST on Sunday, November 1. The dates shift by a week or so each year; this page always shows the live, correct schedule.

What time is it in MDT right now?

It is currently 6:15 AM on Monday, June 22, 2026 in MDT (UTC−6).

Where is MDT used?

US Mountain states and Alberta from mid-March to early November. Cities currently on this time include Calgary, Edmonton.

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