HST to GMT to PST to MST to EST to CST Time Converter
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2:00 am02:00 HST (UTC-10), Nov 8, 2026 = 12:00 pm12:00 GMT (UTC+0), Nov 8, 2026 = 4:00 am04:00 PST (UTC-8), Nov 8, 2026 = 5:00 am05:00 MST (UTC-7), Nov 8, 2026 = 7:00 am07:00 EST (UTC-5), Nov 8, 2026 = 6:00 am06:00 CST (UTC-6), Nov 8, 2026
HST is 10 hours behind GMT. HST is 2 hours behind PST. HST is 3 hours behind MST. HST is 5 hours behind EST. HST is 4 hours behind CST.
How the time difference changes
HST to GMT
HST is 10 hours behind GMT year-round.
Working hours of 9:00 am to 6:00 pm in HST correspond to 7:00 pm to 4:00 am (next day) in GMT.Working hours of 09:00 to 18:00 in HST correspond to 19:00 to 04:00 (next day) in GMT.
HST to PST
For most of the year, HST is 3 hours behind PDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, HST is 2 hours behind PST.
For most of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 12:00 pm to 9:00 pm in PDT. At other times of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 11:00 am to 8:00 pm in PST.For most of the year, working hours of 09:00 to 18:00 in HST correspond to 12:00 to 21:00 in PDT. At other times of the year, working hours of 09:00 to 18:00 in HST correspond to 11:00 to 20:00 in PST.
HST to MST
For most of the year, HST is 4 hours behind MDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, HST is 3 hours behind MST.
For most of the year, working hours of 9:00 am to 6:00 pm in HST 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 HST 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 HST correspond to 13:00 to 22:00 in MDT. At other times of the year, working hours of 09:00 to 18:00 in HST correspond to 12:00 to 21:00 in MST.
HST to EST
For most of the year, HST is 6 hours behind EDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, HST is 5 hours behind EST.
For most of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 3:00 pm to 12:00 am (next day) in EDT. At other times of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 2:00 pm to 11:00 pm in EST.For most of the year, working hours of 09:00 to 18:00 in HST correspond to 15:00 to 00:00 (next day) in EDT. At other times of the year, working hours of 09:00 to 18:00 in HST correspond to 14:00 to 23:00 in EST.
HST to CST
For most of the year, HST is 5 hours behind CDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, HST is 4 hours behind CST.
For most of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 2:00 pm to 11:00 pm in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 1:00 pm to 10:00 pm in CST.For most of the year, working hours of 09:00 to 18:00 in HST correspond to 14:00 to 23:00 in CDT. At other times of the year, working hours of 09:00 to 18:00 in HST correspond to 13:00 to 22:00 in CST.
Compare HST time with GMT, PST, MST, EST, and CST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Hawaii Standard Time is 10 hours behind Greenwich Mean Time. Hawaii Standard Time is 2 hours behind Pacific Standard Time. Hawaii Standard Time is 3 hours behind Mountain Standard Time. Hawaii Standard Time is 5 hours behind Eastern Standard Time. Hawaii Standard Time is 4 hours behind Central Standard Time.
2:00 am02:00 in HST is 12:00 pm12:00 in GMT and is 4:00 am04:00 in PST and is 5:00 am05:00 in MST and is 7:00 am07:00 in EST and is 6:00 am06:00 in CST
HST to GMT call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in HST which corresponds to 6pm-7pm18:00-19:00 in GMT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
HST to PST call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in HST which corresponds to 11am-6pm11:00-18:00 in PST.
HST to MST call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in HST which corresponds to 12pm-6pm12:00-18:00 in MST.
HST to EST call time
Best time for a conference call or a meeting is between 9am-1pm09:00-13:00 in HST which corresponds to 2pm-6pm14:00-18:00 in EST.
HST to CST call time
Best time for a conference call or a meeting is between 9am-2pm09:00-14:00 in HST which corresponds to 1pm-6pm13:00-18:00 in CST.
2:00 am02:00 Hawaii Standard Time (HST). Offset UTC -10:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
4:00 am04:00 Pacific Standard Time (PST). Offset UTC -8:00 hours
5:00 am05:00 Mountain Standard Time (MST). Offset UTC -7:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours
2:00 am02:00 HST / 12:00 pm12:00 GMT / 4:00 am04:00 PST / 5:00 am05:00 MST / 7:00 am07:00 EST / 6:00 am06:00 CST
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| HST | GMT | PST | MST | EST | CST |
|---|---|---|---|---|---|
| 10:00am | 2:00am | 3:00am | 5:00am | 4:00am | |
| 11:00am | 3:00am | 4:00am | 6:00am | 5:00am | |
| 12:00pm | 4:00am | 5:00am | 7:00am | 6:00am | |
| 1:00pm | 5:00am | 6:00am | 8:00am | 7:00am | |
| 2:00pm | 6:00am | 7:00am | 9:00am | 8:00am | |
| 3:00pm | 7:00am | 8:00am | 10:00am | 9:00am | |
| 4:00pm | 8:00am | 9:00am | 11:00am | 10:00am | |
| 5:00pm | 9:00am | 10:00am | 12:00pm | 11:00am | |
| 6:00pm | 10:00am | 11:00am | 1:00pm | 12:00pm | |
| 7:00pm | 11:00am | 12:00pm | 2:00pm | 1:00pm | |
| 8:00pm | 12:00pm | 1:00pm | 3:00pm | 2:00pm | |
| 9:00pm | 1:00pm | 2:00pm | 4:00pm | 3:00pm | |
| 10:00pm | 2:00pm | 3:00pm | 5:00pm | 4:00pm | |
| 11:00pm | 3:00pm | 4:00pm | 6:00pm | 5:00pm | |
| 12:00am next day | 4:00pm | 5:00pm | 7:00pm | 6:00pm | |
| 1:00am next day | 5:00pm | 6:00pm | 8:00pm | 7:00pm | |
| 2:00am next day | 6:00pm | 7:00pm | 9:00pm | 8:00pm | |
| 3:00am next day | 7:00pm | 8:00pm | 10:00pm | 9:00pm | |
| 4:00am next day | 8:00pm | 9:00pm | 11:00pm | 10:00pm | |
| 5:00am next day | 9:00pm | 10:00pm | 12:00am next day | 11:00pm | |
| 6:00am next day | 10:00pm | 11:00pm | 1:00am next day | 12:00am next day | |
| 7:00am next day | 11:00pm | 12:00am next day | 2:00am next day | 1:00am next day | |
| 8:00am next day | 12:00am next day | 1:00am next day | 3:00am next day | 2:00am next day | |
| 9:00am next day | 1:00am next day | 2:00am next day | 4:00am next day | 3:00am next day | |
| 10:00 | 02:00 | 03:00 | 05:00 | 04:00 | |
| 11:00 | 03:00 | 04:00 | 06:00 | 05:00 | |
| 12:00 | 04:00 | 05:00 | 07:00 | 06:00 | |
| 13:00 | 05:00 | 06:00 | 08:00 | 07:00 | |
| 14:00 | 06:00 | 07:00 | 09:00 | 08:00 | |
| 15:00 | 07:00 | 08:00 | 10:00 | 09:00 | |
| 16:00 | 08:00 | 09:00 | 11:00 | 10:00 | |
| 17:00 | 09:00 | 10:00 | 12:00 | 11:00 | |
| 18:00 | 10:00 | 11:00 | 13:00 | 12:00 | |
| 19:00 | 11:00 | 12:00 | 14:00 | 13:00 | |
| 20:00 | 12:00 | 13:00 | 15:00 | 14:00 | |
| 21:00 | 13:00 | 14:00 | 16:00 | 15:00 | |
| 22:00 | 14:00 | 15:00 | 17:00 | 16:00 | |
| 23:00 | 15:00 | 16:00 | 18:00 | 17:00 | |
| 00:00 next day | 16:00 | 17:00 | 19:00 | 18:00 | |
| 01:00 next day | 17:00 | 18:00 | 20:00 | 19:00 | |
| 02:00 next day | 18:00 | 19:00 | 21:00 | 20:00 | |
| 03:00 next day | 19:00 | 20:00 | 22:00 | 21:00 | |
| 04:00 next day | 20:00 | 21:00 | 23:00 | 22:00 | |
| 05:00 next day | 21:00 | 22:00 | 00:00 next day | 23:00 | |
| 06:00 next day | 22:00 | 23:00 | 01:00 next day | 00:00 next day | |
| 07:00 next day | 23:00 | 00:00 next day | 02:00 next day | 01:00 next day | |
| 08:00 next day | 00:00 next day | 01:00 next day | 03:00 next day | 02:00 next day | |
| 09:00 next day | 01:00 next day | 02:00 next day | 04:00 next day | 03:00 next day |
Hawaii Standard Time
Offset: HST is 10 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: United States
Principal Cities: The largest city in the HST time zone is Honolulu in the United States, with about 350,964 people. Other major cities in this time zone include Pearl City, Hilo, Kailua, Waipahu.
Daylight Saving: Some places on Hawaii Standard Time (HST) keep the same time all year, while others use HST for only part of the year and change their clocks for daylight saving time; see upcoming clock changes worldwide.
Today all shaded areas are on HST.
HST representations, usage and related time zones
- -10 - basic short
- -1000 - basic
- -10:00 - extended
- -1000 - sign character (-) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates an offset of ten hours to the west of the zero meridian.
- Whiskey - Military abbreviation for HST
- W - short form of 'Whiskey'
- America/Adak
- America/Atka
- HST
- Pacific/Honolulu
- Pacific/Johnston
- US/Aleutian
- US/Hawaii
- HAST - Hawaii-Aleutian Standard Time
- CKT - Cook Island Time
- HST - Hawaii Standard Time
- TAHT - Tahiti Time
- W - Whiskey Time Zone
Greenwich Mean Time
Offset: GMT is the same as Greenwich Mean Time (GMT).
Countries using this time zone: Antarctica, Burkina Faso, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Togo, United Kingdom, Western Sahara
Principal Cities: The largest city in the GMT time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Casablanca, Dakar.
Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.
Today all shaded areas are on GMT.
GMT representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
- Zulu - Military abbreviation for GMT
- Z - short form of 'Zulu'
- Africa/Abidjan
- Africa/Accra
- Africa/Bamako
- Africa/Banjul
- Africa/Bissau
- Africa/Conakry
- Africa/Dakar
- Africa/Freetown
- Africa/Lome
- Africa/Monrovia
- Africa/Nouakchott
- Africa/Ouagadougou
- Africa/Sao_Tome
- Africa/Timbuktu
- America/Danmarkshavn
- Atlantic/Reykjavik
- Atlantic/St_Helena
- Eire
- Etc/GMT
- Etc/GMT+0
- Etc/GMT-0
- Etc/GMT0
- Etc/Greenwich
- Europe/Belfast
- Europe/Dublin
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- GMT
- GMT+0
- GMT-0
- GMT0
- Greenwich
- Iceland
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Coordinated Universal Time
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Pacific Standard Time
Offset: PST is 8 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Mexico, United States
Principal Cities: The largest city in the PST time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.
French: HNP - Heure Normale du Pacifique
Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste
Today all shaded areas are on PST.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Pacific Daylight Time (PDT).
Start: Pacific Standard Time (PST) 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.
End: Pacific Standard Time (PST) 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.
PST representations, usage and related time zones
- -08 - basic short
- -0800 - basic
- -08:00 - extended
- -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the west of the zero meridian.
- Uniform - Military abbreviation for PST
- U - short form of 'Uniform'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- Pacific Standard Time - UTC -8
- Pitcairn Standard Time - UTC -8
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone
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
Today all shaded areas are on MST.
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).
Start: 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.
End: 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
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -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.
- Tango - Military abbreviation for MST
- T - short form of 'Tango'
- 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 - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Bahamas, Canada, Cayman Islands, Haiti, Jamaica, Mexico, Panama, Turks and Caicos Islands, United States
Principal Cities: The largest city in the EST time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Montréal, Philadelphia, Port-au-Prince.
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
Today all shaded areas are on EST.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Eastern Daylight Time (EDT).
Start: Eastern Standard Time (EST) 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.
End: Eastern Standard Time (EST) 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.
EST representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
- America/Atikokan
- America/Cancun
- America/Cayman
- America/Coral_Harbour
- America/Detroit
- America/Fort_Wayne
- America/Grand_Turk
- America/Indiana/Indianapolis
- America/Indiana/Marengo
- America/Indiana/Petersburg
- America/Indiana/Vevay
- America/Indiana/Vincennes
- America/Indiana/Winamac
- America/Indianapolis
- America/Iqaluit
- America/Jamaica
- America/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Panama
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST
- EST5EDT
- Jamaica
- US/East-Indiana
- US/Eastern
- US/Michigan
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone
Central Standard Time
Offset: CST is 6 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Belize, Canada, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, United States
Principal Cities: The largest city in the CST time zone is Mexico City in Mexico, with about 12.294 million people. Other major cities in this time zone include Chicago, Houston, Puebla, Santiago de Querétaro.
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro
Today all shaded areas are on CST.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central Daylight Time (CDT).
Start: Central Standard Time (CST) 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.
End: Central Standard Time (CST) 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.
CST representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -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.
- Sierra - Military abbreviation for CST
- S - short form of 'Sierra'
- America/Bahia_Banderas
- America/Belize
- America/Chicago
- America/Chihuahua
- America/Costa_Rica
- America/El_Salvador
- America/Guatemala
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Managua
- America/Matamoros
- America/Menominee
- America/Merida
- America/Mexico_City
- America/Monterrey
- America/North_Dakota/Beulah
- America/North_Dakota/Center
- America/North_Dakota/New_Salem
- America/Ojinaga
- America/Rainy_River
- America/Rankin_Inlet
- America/Regina
- America/Resolute
- America/Swift_Current
- America/Tegucigalpa
- America/Winnipeg
- CST6CDT
- Canada/Central
- Canada/Saskatchewan
- Mexico/General
- US/Central
- US/Indiana-Starke
- Central Standard Time - UTC -6
- China Standard Time - UTC +8
- Cuba Standard Time - UTC -5
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone