MST
Mountain Standard Time
GMT -7
LHST
Lord Howe Standard Time
GMT +10:30

Time Difference

Mountain Standard Time is 17 hours and 30 minutes behind Lord Howe Standard Time
11:30 pm23:30 in MST is 5:00 pm17:00 in LHST

MST to LHST call time
Best time for a conference call or a meeting is between 4am-6am in MST which corresponds to 9:30pm-11:30pm in LHST

11:30 pm23:30 Mountain Standard Time (MST). Offset UTC -7:00 hours
5:00 pm17:00 Lord Howe Standard Time (LHST). Offset UTC +10:30 hours

11:30 pm23:30 MST / 5:00 pm17:00 LHST

MST LHST
12am (midnight) 5:30 pm
1am 6:30 pm
2am 7:30 pm
3am 8:30 pm
4am 9:30 pm
5am 10:30 pm
6am 11:30 pm
7am 12:30 am
8am 1:30 am
9am 2:30 am
10am 3:30 am
11am 4:30 am
12pm (noon) 5:30 am
1pm 6:30 am
2pm 7:30 am
3pm 8:30 am
4pm 9:30 am
5pm 10:30 am
6pm 11:30 am
7pm 12:30 pm
8pm 1:30 pm
9pm 2:30 pm
10pm 3:30 pm
11pm 4:30 pm
0:00 17:30
1:00 18:30
2:00 19:30
3:00 20:30
4:00 21:30
5:00 22:30
6:00 23:30
7:00 0:30
8:00 1:30
9:00 2:30
10:00 3:30
11:00 4:30
12:00 5:30
13:00 6:30
14:00 7:30
15:00 8:30
16:00 9:30
17:00 10:30
18:00 11:30
19:00 12:30
20:00 13:30
21:00 14:30
22:00 15:30
23:00 16:30

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

French: HNR - Heure Normale des Rocheuses

Spanish: MT - Zona Pacífico

MST Time Zone Geo Map
MST timezone map

Daylight Saving: This is a standard timezone, 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 back for one hour from 2am to 1amStart: Mountain Standard Time (MST) started on Sunday, November 5, 2023 at 2:00 am local time and clocks were set one hour back to Sunday, November 5, 2023, 1:00 am. Standard time starts annually the on first Sunday of November.

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

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
  • Mauritius Standard Time - UTC +4
  • Moscow Standard Time - UTC +3
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone

Lord Howe Standard Time

Offset: LHST is 10 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Australia

LHST Time Zone Geo Map
LHST timezone map

LHST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1030 - basic
  • +10:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1030 - sign character (+) followed by a four digit time providing hours (10) and minutes (30) of the offset. Indicates ten hour and thirty minutes time differences to the east of the zero meridian.
Time zones with the GMT +10:30 offset:
  • ACDT - Australian Central Daylight Time
  • LHST - Lord Howe Standard Time