Mountain Daylight Time (North America)

1

8

4

4

3

2

Wednesday, 27

August 2025

Mountain Daylight Time (North America) (MDT) is -6 hours behind Coordinated Universal Time, UTC-6, it is used in summer. In winter used Mountain Standard Time (North America), UTC-7

Time difference, hrs.

Columbus	2	2 0 4 4
London	7	0 1 4 4
New York	2	2 0 4 4
Tokyo	15	0 9 4 4

Compare other Time Zones

MDT - CDT, MDT - EDT, MDT - PDT

Countries in Mountain Daylight Time (North America)