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St. John's to MDT Time Converter

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St. John's
Canada
NST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
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.

Quick answers

Selected conversion

The selected date and time will appear here when the converter loads.

How the time difference changes

For most of the year, St. John's is 3 hours and 30 minutes ahead of MDT. At other times of the year, St. John's is 3 hours and 30 minutes ahead of MST. Briefly around clock changes, St. John's is 2 hours and 30 minutes ahead of MDT or St. John's is 4 hours and 30 minutes ahead of MST.

For most of the year, working hours of 9:00 am to 5:00 pm in St. John's correspond to 5:30 am to 1:30 pm in MDT. At other times of the year, working hours of 9:00 am to 5:00 pm in St. John's correspond to 5:30 am to 1:30 pm in MST.

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

Time Difference

NST (Newfoundland Standard Time) is 3 hours and 30 minutes ahead of Mountain Standard Time
8:30 am08:30 in St. John's, Canada is 5:00 am05:00 in MST

St. John's to MST call time
Best time for a conference call or a meeting is between 12:30pm-5pm in St. John's which corresponds to 9am-1:30pm in MST

8:30 am08:30 NST (Newfoundland Standard Time) (St. John's, Canada). Offset UTC -3:30 hours
5:00 am05:00 Mountain Standard Time (MST). Offset UTC -7:00 hours

8:30 am08:30 St. John's, Canada / 5:00 am05:00 MST

St. John's, CanadaMST
12am (midnight)8:30 pm
1am9:30 pm
2am10:30 pm
3am11:30 pm
4am12:30 am
5am1:30 am
6am2:30 am
7am3:30 am
8am4:30 am
9am5:30 am
10am6:30 am
11am7:30 am
12pm (noon)8:30 am
1pm9:30 am
2pm10:30 am
3pm11:30 am
4pm12:30 pm
5pm1:30 pm
6pm2:30 pm
7pm3:30 pm
8pm4:30 pm
9pm5:30 pm
10pm6:30 pm
11pm7:30 pm
00:0020:30
01:0021:30
02:0022:30
03:0023:30
04:0000:30
05:0001:30
06:0002:30
07:0003:30
08:0004:30
09:0005:30
10:0006:30
11:0007:30
12:0008:30
13:0009:30
14:0010:30
15:0011:30
16:0012:30
17:0013:30
18:0014:30
19:0015:30
20:0016:30
21:0017:30
22:0018:30
23:0019:30

St. John's Information

Time Zone

Abbreviation / Name
NDT - Newfoundland Daylight Time
NST - Newfoundland Standard Time
UTC / GMT Offset
-2:30 hours during Newfoundland Daylight Time, currently in use.
-3:30 hours during Newfoundland 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.

St. John's Facts

Country
Canada
Alternative Names
Agios Ioannis Neas Gis, Baile Naoimh Eoin, Baile Naoimh Eòin, Baile Sheain, Baile Sheáin, Saint John, Saint John's, Saint-Jean, Saint-Jean de Terre-Neuve, San Juan de Terranova, Sanctus Ioannes Terrae Novae, Sejnt Dzhons, Sent DZons, Sent Dzonsas, Sent Džonsas, Sent-Dzhons, St Johns, St. John's, St. John's pa Newfoundland, St. John's på Newfoundland, St. John’s, YYT, ceyint jans, sant jwnz, seinteujonseu, sentojonzu, sheng yue han si, snt g'wns, Άγιος Ιωάννης Νέας Γης, Сейнт Джонс, Сент Џонс, Сент-Джонс, סנט ג'ונס, سانت جونز, سینٹ جان, سینٹ جانز، نیوفنلینڈ اور لیبراڈار, செயின்ட் ஜான்ஸ், სენტ-ჯონზი, セントジョンズ, 聖約翰斯, 세인트존스
Population
99,182
Currency
Dollar (CAD)
Geographic Coordinates
47° 33' N Latitude / 52° 42' W Longitude
International Dialing Code
+1

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
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT