Saint Helena
GMT
MDT/MST
Mountain Daylight Time
GMT -6
MST automatically adjusted to MDT time zone, that is in use

Time Difference

GMT () is 6 hours ahead of Mountain Daylight Time
3:00 am03:00 in Jamestown, Saint Helena is 9:00 pm21:00 in MDT

Jamestown to MST call time
Best time for a conference call or a meeting is between 3pm-6pm in Jamestown which corresponds to 8am-11am in MST

3:00 am03:00 GMT () (Jamestown, Saint Helena). Offset UTC 0:00 hours
9:00 pm21:00 Mountain Daylight Time (MDT). Offset UTC -6:00 hours

3:00 am03:00 Jamestown, Saint Helena / 9:00 pm21:00 MDT

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

Jamestown Information

Time Zone

Abbreviation / Name
GMT -
UTC / GMT Offset
0:00 hours during , currently in use.

Jamestown Facts

Country
Saint Helena
Alternative Names
Ceymstaun, Dzeimstauna, Dzeimstaunas, Dzejmstaun, Dzhehjmstaun, Dzhejmstaun, Džeimstauna, Džeimstaunas, HLE, Iacobopolis, Jamestauno, Jamestown, Tzeimstaoun, Zhejmstaun, cems thawn, jeimseutaun, jemsata'una, jemstavun, jemuzutaun, jyms tawn, jymz ٹawn synٹ ہlyna, jymztawn synt hlyna, zhan mu si dui, Ĵamestaŭno, Τζέιμσταουν, Џејмстаун, Джеймстаун, Джэймстаўн, Жеймстаун, גיימסטאון, דזשיימסטאן, جيمس تاون, جیمز ٹاون، سینٹ ہلینا, جیمزتاون، سینت هلینا, جیمزٹاؤن, جەیمستاون, जेम्सटाउन, ஜேம்ஸ்டவுன், เจมส์ทาวน์, ჯეიმზტაუნი, ジェームズタウン, 詹姆斯敦, 제임스타운
Population
637
Currency
Pound (SHP)
Geographic Coordinates
15° 56' S Latitude / 5° 43' W Longitude
International Dialing Code
+290

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 Phoenix from USA with population about 1.446 million people. Other major cities in the area are Calgary, Edmonton, El Paso, Denver

French: HNR - Heure Normale des Rocheuses

Spanish: MT - Zona Pacífico

MST Time Zone Geo Map
MST timezone map

Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Mountain Daylight Time (MDT).

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Mountain Standard Time (MST) has ended on Sunday, March 10, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 10, 2024, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.

Daylight saving time clock moves back for one hour from 2am to 1amStart: Mountain Standard Time (MST) starts on Sunday, November 3, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, November 3, 2024, 1:00 am. Standard time starts annually the on first Sunday of November.

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/Ciudad_Juarez
  • America/Creston
  • America/Dawson
  • America/Dawson_Creek
  • America/Denver
  • America/Edmonton
  • America/Fort_Nelson
  • America/Hermosillo
  • America/Inuvik
  • America/Mazatlan
  • 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
  • Mauritius Standard Time - UTC +4
  • Magadan Standard Time - UTC +11
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone