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MST/MDT
Mountain Standard Time
GMT -7
12am
3am
6am
9am
12pm
3pm
6pm
9pm
MDT is not used on this date
This converter uses MST (GMT -7), the offset Denver uses on this date. Open the MST converter.
Canada
AST
12am
3am
6am
9am
12pm
3pm
6pm
9pm

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How the time difference changes

For most of the year, MDT is 3 hours behind Saint John. At other times of the year, MST is 3 hours behind Saint John. Briefly around clock changes, MDT is 2 hours behind Saint John or MST is 4 hours behind Saint John.

For most of the year, working hours of 9:00 am to 5:00 pm in MDT correspond to 12:00 pm to 8:00 pm in Saint John. At other times of the year, working hours of 9:00 am to 5:00 pm in MST correspond to 12:00 pm to 8:00 pm in Saint John.

Compare MDT time with Saint John time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Mountain Standard Time is 3 hours behind AST (Atlantic Standard Time)
5:00 am05:00 in MST is 8:00 am08:00 in Saint John, Canada

MST to Saint John call time
Best time for a conference call or a meeting is between 9am-2pm in MST which corresponds to 12pm-5pm in Saint John

5:00 am05:00 Mountain Standard Time (MST). Offset UTC -7:00 hours
8:00 am08:00 AST (Atlantic Standard Time) (Saint John, Canada). Offset UTC -4:00 hours

5:00 am05:00 MST / 8:00 am08:00 Saint John, Canada

MSTSaint John, Canada
12am (midnight)3am
1am4am
2am5am
3am6am
4am7am
5am8am
6am9am
7am10am
8am11am
9am12pm (noon)
10am1pm
11am2pm
12pm (noon)3pm
1pm4pm
2pm5pm
3pm6pm
4pm7pm
5pm8pm
6pm9pm
7pm10pm
8pm11pm
9pm12am (midnight)
10pm1am
11pm2am
00:0003:00
01:0004:00
02:0005:00
03:0006:00
04:0007:00
05:0008:00
06:0009:00
07:0010:00
08:0011:00
09:0012:00
10:0013:00
11:0014:00
12:0015:00
13:0016:00
14:0017:00
15:0018:00
16:0019:00
17:0020:00
18:0021:00
19:0022:00
20:0023:00
21:0000:00
22:0001:00
23:0002:00

Mountain Daylight Time

Offset: MDT is 6 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries using this time zone: Canada, Mexico, United States

Principal Cities: The largest city in the MDT time zone is Calgary in Canada, with about 1.02 million people. Other major cities in this time zone include Edmonton, El Paso, Denver, Albuquerque.

French: HAR - Heure Avancée des Rocheuses

Spanish: MT - Zona Pacífico

MDT Time Zone Geo Map
MDT timezone map

Daylight Saving: Mountain Daylight Time (MDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Mountain Standard Time (MST).

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Mountain Daylight Time (MDT) ended on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am local standard time instead. Daylight saving ends annually on the first Sunday of November

Daylight saving time clock moves back for one hour from 2am to 1amStart: Mountain Daylight Time (MDT) starts on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am. Daylight saving starts annually on the second Sunday of March

MDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -06 - basic short
  • -0600 - basic
  • -06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Sierra - Military abbreviation for MDT
  • S - short form of 'Sierra'
IANA/Olson: Reflects MDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Boise
  • America/Cambridge_Bay
  • America/Ciudad_Juarez
  • America/Denver
  • America/Edmonton
  • America/Inuvik
  • America/Shiprock
  • America/Yellowknife
  • Canada/Mountain
  • MST7MDT
  • Navajo
  • US/Mountain
Time zones with the GMT -6 offset:
  • CST - Central Standard Time
  • CT - Central Time
  • MDT - Mountain Daylight Time
  • EAST - Easter Island Standard Time
  • GALT - Galapagos Time
  • S - Sierra Time Zone

Saint John Information

Time Zone

Abbreviation / Name
ADT - Atlantic Daylight Time
AST - Atlantic Standard Time
UTC / GMT Offset
-3:00 hours during Atlantic Daylight Time, currently in use.
-4:00 hours during Atlantic Standard Time.
Daylight Saving Time Change
+1:00 hour - DST is in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hour from 2am to 3amSunday, March 8, 2026 at 2:00 am local time. DST starts annually on the 2nd Sunday of March. Clocks are turned forward 1 hour to Sunday, March 8, 2026 at 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Daylight saving time clock moves back for one hour from 2am to 1amSunday, November 1, 2026 at 2:00 am local time. DST ends annually on the 1st Sunday of November. Clocks are turned backward 1 hour to Sunday, November 1, 2026 at 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.

Saint John Facts

Country
Canada
Alternative Names
Saint John, Saint-Jean, Sejnt Dzhon, Sent DZon, Sent-Dzhon, Urbs Sancti Ioannis Canadensis, YSJ, seinteujon, senta jona, sentcxhn, sentojon, sheng yue han, snt gwn, snt jan, Сейнт Джон, Сент Џон, Сент-Джон, סנט גון, سنت جان, سینٹ جان, سینٹ جان، نیو برنسوک, सेंट जॉन, เซนต์จอห์น, სენტ-ჯონი, セントジョン, セント・ジョン, 圣约翰, 세인트존
Population
87,857
Currency
Dollar (CAD)
Geographic Coordinates
45° 16' N Latitude / 66° 03' W Longitude
International Dialing Code
+1