Honolulu to MST Time Converter

Updating current time…
Honolulu
Hawaii, USAHST
UTC−10
12am
3am
6am
9am
12pm
3pm
6pm
9pm
MST
Mountain Standard Time
UTC−7
3h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

6:00 am06:00 HST (UTC-10), Nov 1, 2026 = 9:00 am09:00 MST (UTC-7), Nov 1, 2026

Honolulu is 3 hours behind MST.

How the time difference changes

For most of the year, Honolulu is 4 hours behind MDT. From Nov 1, 2026 to Mar 14, 2027, Honolulu is 3 hours behind MST.

For most of the year, working hours of 9:00 am to 6:00 pm in Honolulu correspond to 1:00 pm to 10:00 pm in MDT. At other times of the year, working hours of 9:00 am to 6:00 pm in Honolulu correspond to 12:00 pm to 9:00 pm in MST.For most of the year, working hours of 09:00 to 18:00 in Honolulu correspond to 13:00 to 22:00 in MDT. At other times of the year, working hours of 09:00 to 18:00 in Honolulu correspond to 12:00 to 21:00 in MST.

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

Time Difference

HST (Hawaii Standard Time) is 3 hours behind Mountain Standard Time.
6:00 am06:00 in Honolulu, HI, USA is 9:00 am09:00 in MST

Honolulu to MST call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in Honolulu which corresponds to 12pm-6pm12:00-18:00 in MST

6:00 am06:00 HST (Hawaii Standard Time) (Honolulu, HI, USA). Offset UTC -10:00 hours
9:00 am09:00 Mountain Standard Time (MST). Offset UTC -7:00 hours

6:00 am06:00 Honolulu, HI, USA / 9:00 am09:00 MST

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Hourly time comparison
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Honolulu Time Zone and Facts

Time Zone

Abbreviation / Offset
HST – Hawaii Standard Time, UTC-10 (no daylight saving time)

Honolulu Facts

Country
USA
State
Hawaii
Alternative Names
Anorourou, Chonoloulou, Gana-Rura, Gana-ruru, Ganalulu, Ganaruro, Ganaruru, Gonolulu, HNL, Hana-Rura, Hana-Ruru, Hana-ruru, Honoloulou, Honolulu, Honolulú, Honolúlú, Honoruru, Khonolulu, Than-hiong-san, Thàn-hiông-sân, hanalulu, hanululu, honalulu, honollullu, honolulu, honoruru, hwnwlwlw, tan xiang shan, Χονολουλού, Ганалулу, Гонолулу, Хонолулу, Һонолулу, Հոնոլուլու, האנאלולו, הונולולו, هونولولو, ہwnwlwlw ہwayy, ہونولولو, ہونولولو، ہوائی, हानलूलू, होनालुलु, होनोलुलु, होनोलूलू, হনলুলু, হনুলুলু, ହନଲୁଲୁ, ஹொனலுலு, ಹೊನೊಲುಲು, โฮโนลูลู, ཧོ་ནོ་ལུ་ལུ།, ဟိုနိုလူလူမြို့, ჰონოლულუ, ሆኖሉሉ, ホノルル, 檀香山, 호놀룰루
Population
350,964
Currency
Dollar (USD)
Geographic Coordinates
21° 18' N Latitude / 157° 51' W Longitude
International Dialing Code
+1
More About Honolulu
Honolulu local time and city facts

Mountain Standard Time

Offset: MST is 7 hours behind Greenwich Mean Time (GMT).

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

Principal Cities: The largest city in the MST time zone is Phoenix in the United States, with about 1.65 million people. Other major cities in this time zone include Ciudad Juárez, Hermosillo, Culiacán, Denver.

French: HNR - Heure Normale des Rocheuses

Spanish: MT - Zona Pacífico

Map of the areas on Mountain Standard Time (MST)
MST all year MST part of the year

Today all shaded areas are on MST.

Open the world time zone map© OpenStreetMap

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Mountain Daylight Time (MDT).

123456789101112Start: Mountain Standard Time (MST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

123456789101112End: Mountain Standard Time (MST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

See USA daylight saving time and upcoming clock changes worldwide.

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 an offset of seven hours 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
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone