YDT
Yukon Daylight Time
GMT -7
MDT/MST
Mountain Daylight Time
GMT -6
MST automatically adjusted to MDT time zone, that is in use

Time Difference

Yukon Daylight Time is 1 hours behind of Mountain Daylight Time
11:30 am11:30 in YDT is 12:30 pm12:30 in MDT

YDT to MST call time
Best time for a conference call or a meeting is between 8am-6pm in YDT which corresponds to 8am-6pm in MST

11:30 am11:30 Yukon Daylight Time (YDT). Offset UTC -7:00 hours
12:30 pm12:30 Mountain Daylight Time (MDT). Offset UTC -6:00 hours

11:30 am11:30 YDT / 12:30 pm12:30 MDT

YDT MDT
12am (midnight) 1am
1am 2am
2am 3am
3am 4am
4am 5am
5am 6am
6am 7am
7am 8am
8am 9am
9am 10am
10am 11am
11am 12pm (noon)
12pm (noon) 1pm
1pm 2pm
2pm 3pm
3pm 4pm
4pm 5pm
5pm 6pm
6pm 7pm
7pm 8pm
8pm 9pm
9pm 10pm
10pm 11pm
11pm 12am (midnight)
0:00 1:00
1:00 2:00
2:00 3:00
3:00 4:00
4:00 5:00
5:00 6:00
6:00 7:00
7:00 8:00
8:00 9:00
9:00 10:00
10:00 11:00
11:00 12:00
12:00 13:00
13:00 14:00
14:00 15:00
15:00 16:00
16:00 17:00
17:00 18:00
18:00 19:00
19:00 20:00
20:00 21:00
21:00 22:00
22:00 23:00
23:00 0:00

Mountain Standard Time

Offset: MST is 7 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries: It is used in following countries: Canada, Mexico, United States

Principal Cities: The largest city in the MST timezone is Ciudad Juarez from Mexico with population about 1.512 million people. Other major cities in the area are Phoenix, Calgary, Chihuahua, Edmonton

Daylight Saving: This is a standard timezone, however during summer some places adjust time for one hour forward for daylight saving and observe Mountain Daylight Time (MDT).

End: MST ends annually on the same date and time. and clocks were set one hour forward on Sunday, 14 March 2021, at 2:00 (2:00 am) local time.

Start: MST starts annually on the same date and time. and clocks are set one hour back on Sunday, 07 November 2021, at 2:00 (2:00 am) local time.

French: HNR - Heure Normale des Rocheuses

Spanish: MT - Zona Pacífico

MST Time Zone Geo Map
MST timezone map

MST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -07 - basic short
  • -0700 - basic
  • -07:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates seven hour and zero minutes time differences to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Tango - Military abbreviation for MST
  • T - short form of 'Tango'
IANA/Olson: Reflects MST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Boise
  • America/Cambridge_Bay
  • America/Chihuahua
  • America/Creston
  • America/Dawson
  • America/Dawson_Creek
  • America/Denver
  • America/Edmonton
  • America/Fort_Nelson
  • America/Hermosillo
  • America/Inuvik
  • America/Mazatlan
  • America/Ojinaga
  • America/Phoenix
  • America/Shiprock
  • America/Whitehorse
  • America/Yellowknife
  • Canada/Mountain
  • Canada/Yukon
  • MST
  • MST7MDT
  • Mexico/BajaSur
  • Navajo
  • US/Arizona
  • US/Mountain
MST Abbreviation: Several time zones share MST abbreviation and it could refer to these time zones
  • Mountain Standard Time - UTC -7
  • Moscow Standard Time - UTC +3
  • Magadan Standard Time - UTC +11
  • Mauritius Standard Time - UTC +4
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone