HKT to GMT to JST to Seoul to KST to London to EST Time Converter
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8:00 pm20:00 HKT (UTC+8), Nov 11, 2026 = 12:00 pm12:00 GMT (UTC+0), Nov 11, 2026 = 9:00 pm21:00 JST (UTC+9), Nov 11, 2026 = 9:00 pm21:00 KST (UTC+9), Nov 11, 2026 = 9:00 pm21:00 KST (UTC+9), Nov 11, 2026 = 12:00 pm12:00 GMT (UTC+0), Nov 11, 2026 = 7:00 am07:00 EST (UTC-5), Nov 11, 2026
HKT is 8 hours ahead of GMT. HKT is 1 hour behind JST. HKT is 1 hour behind Seoul. HKT is 1 hour behind KST. HKT is 8 hours ahead of London. HKT is 13 hours ahead of EST.
How the time difference changes
HKT to GMT
HKT is 8 hours ahead of GMT year-round.
Working hours of 9:00 am to 6:00 pm in HKT correspond to 1:00 am to 10:00 am in GMT.Working hours of 09:00 to 18:00 in HKT correspond to 01:00 to 10:00 in GMT.
HKT to JST
HKT is 1 hour behind JST year-round.
Working hours of 9:00 am to 6:00 pm in HKT correspond to 10:00 am to 7:00 pm in JST.Working hours of 09:00 to 18:00 in HKT correspond to 10:00 to 19:00 in JST.
HKT to Seoul
HKT is 1 hour behind Seoul year-round.
Working hours of 9:00 am to 6:00 pm in HKT correspond to 10:00 am to 7:00 pm in Seoul.Working hours of 09:00 to 18:00 in HKT correspond to 10:00 to 19:00 in Seoul.
HKT to KST
HKT is 1 hour behind KST year-round.
Working hours of 9:00 am to 6:00 pm in HKT correspond to 10:00 am to 7:00 pm in KST.Working hours of 09:00 to 18:00 in HKT correspond to 10:00 to 19:00 in KST.
HKT to London
For most of the year, HKT is 7 hours ahead of London. From Oct 25, 2026 to Mar 28, 2027, and from Oct 31, 2027 to Mar 26, 2028, HKT is 8 hours ahead of London.
For most of the year, working hours of 9:00 am to 6:00 pm in HKT correspond to 2:00 am to 11:00 am in London. At other times of the year, working hours of 9:00 am to 6:00 pm in HKT correspond to 1:00 am to 10:00 am in London.For most of the year, working hours of 09:00 to 18:00 in HKT correspond to 02:00 to 11:00 in London. At other times of the year, working hours of 09:00 to 18:00 in HKT correspond to 01:00 to 10:00 in London.
HKT to EST
For most of the year, HKT is 12 hours ahead of EDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, HKT is 13 hours ahead of EST.
For most of the year, working hours of 9:00 am to 6:00 pm in HKT correspond to 9:00 pm (previous day) to 6:00 am in EDT. At other times of the year, working hours of 9:00 am to 6:00 pm in HKT correspond to 8:00 pm (previous day) to 5:00 am in EST.For most of the year, working hours of 09:00 to 18:00 in HKT correspond to 21:00 (previous day) to 06:00 in EDT. At other times of the year, working hours of 09:00 to 18:00 in HKT correspond to 20:00 (previous day) to 05:00 in EST.
Compare HKT time with GMT, JST, Seoul, KST, London, and EST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Hong Kong Time is 8 hours ahead of Greenwich Mean Time. Hong Kong Time is 1 hour behind Japan Standard Time. Hong Kong Time is 1 hour behind KST (Korea Standard Time). Hong Kong Time is 1 hour behind Korea Standard Time. Hong Kong Time is 8 hours ahead of GMT (Greenwich Mean Time). Hong Kong Time is 13 hours ahead of Eastern Standard Time.
8:00 pm20:00 in HKT is 12:00 pm12:00 in GMT and is 9:00 pm21:00 in JST and is 9:00 pm21:00 in Seoul, South Korea and is 9:00 pm21:00 in KST and is 12:00 pm12:00 in London, United Kingdom and is 7:00 am07:00 in EST
HKT to GMT call time
Best time for a conference call or a meeting is between 5pm-6pm17:00-18:00 in HKT which corresponds to 9am-10am09:00-10:00 in GMT.
HKT to JST call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in HKT which corresponds to 10am-6pm10:00-18:00 in JST.
HKT to Seoul call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in HKT which corresponds to 10am-6pm10:00-18:00 in Seoul.
HKT to KST call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in HKT which corresponds to 10am-6pm10:00-18:00 in KST.
HKT to London call time
Best time for a conference call or a meeting is between 5pm-6pm17:00-18:00 in HKT which corresponds to 9am-10am09:00-10:00 in London.
HKT to EST call time
Best time for a conference call or a meeting is between 7:30am-8:30am07:30-08:30 in HKT which corresponds to 6:30pm-7:30pm18:30-19:30 in EST (previous day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
8:00 pm20:00 Hong Kong Time (HKT). Offset UTC +8:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
9:00 pm21:00 Japan Standard Time (JST). Offset UTC +9:00 hours
9:00 pm21:00 KST (Korea Standard Time) (Seoul, South Korea). Offset UTC +9:00 hours
9:00 pm21:00 Korea Standard Time (KST). Offset UTC +9:00 hours
12:00 pm12:00 GMT (Greenwich Mean Time) (London, United Kingdom). Offset UTC 0:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
8:00 pm20:00 HKT / 12:00 pm12:00 GMT / 9:00 pm21:00 JST / 9:00 pm21:00 Seoul, South Korea / 9:00 pm21:00 KST / 12:00 pm12:00 London, United Kingdom / 7:00 am07:00 EST
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.
| HKT | GMT | JST | Seoul, South Korea | KST | London, United Kingdom | EST |
|---|---|---|---|---|---|---|
| 4:00pm previous day | 1:00am | 1:00am | 1:00am | 4:00pm previous day | 11:00am previous day | |
| 5:00pm previous day | 2:00am | 2:00am | 2:00am | 5:00pm previous day | 12:00pm previous day | |
| 6:00pm previous day | 3:00am | 3:00am | 3:00am | 6:00pm previous day | 1:00pm previous day | |
| 7:00pm previous day | 4:00am | 4:00am | 4:00am | 7:00pm previous day | 2:00pm previous day | |
| 8:00pm previous day | 5:00am | 5:00am | 5:00am | 8:00pm previous day | 3:00pm previous day | |
| 9:00pm previous day | 6:00am | 6:00am | 6:00am | 9:00pm previous day | 4:00pm previous day | |
| 10:00pm previous day | 7:00am | 7:00am | 7:00am | 10:00pm previous day | 5:00pm previous day | |
| 11:00pm previous day | 8:00am | 8:00am | 8:00am | 11:00pm previous day | 6:00pm previous day | |
| 12:00am | 9:00am | 9:00am | 9:00am | 12:00am | 7:00pm previous day | |
| 1:00am | 10:00am | 10:00am | 10:00am | 1:00am | 8:00pm previous day | |
| 2:00am | 11:00am | 11:00am | 11:00am | 2:00am | 9:00pm previous day | |
| 3:00am | 12:00pm | 12:00pm | 12:00pm | 3:00am | 10:00pm previous day | |
| 4:00am | 1:00pm | 1:00pm | 1:00pm | 4:00am | 11:00pm previous day | |
| 5:00am | 2:00pm | 2:00pm | 2:00pm | 5:00am | 12:00am | |
| 6:00am | 3:00pm | 3:00pm | 3:00pm | 6:00am | 1:00am | |
| 7:00am | 4:00pm | 4:00pm | 4:00pm | 7:00am | 2:00am | |
| 8:00am | 5:00pm | 5:00pm | 5:00pm | 8:00am | 3:00am | |
| 9:00am | 6:00pm | 6:00pm | 6:00pm | 9:00am | 4:00am | |
| 10:00am | 7:00pm | 7:00pm | 7:00pm | 10:00am | 5:00am | |
| 11:00am | 8:00pm | 8:00pm | 8:00pm | 11:00am | 6:00am | |
| 12:00pm | 9:00pm | 9:00pm | 9:00pm | 12:00pm | 7:00am | |
| 1:00pm | 10:00pm | 10:00pm | 10:00pm | 1:00pm | 8:00am | |
| 2:00pm | 11:00pm | 11:00pm | 11:00pm | 2:00pm | 9:00am | |
| 3:00pm | 12:00am next day | 12:00am next day | 12:00am next day | 3:00pm | 10:00am | |
| 16:00 previous day | 01:00 | 01:00 | 01:00 | 16:00 previous day | 11:00 previous day | |
| 17:00 previous day | 02:00 | 02:00 | 02:00 | 17:00 previous day | 12:00 previous day | |
| 18:00 previous day | 03:00 | 03:00 | 03:00 | 18:00 previous day | 13:00 previous day | |
| 19:00 previous day | 04:00 | 04:00 | 04:00 | 19:00 previous day | 14:00 previous day | |
| 20:00 previous day | 05:00 | 05:00 | 05:00 | 20:00 previous day | 15:00 previous day | |
| 21:00 previous day | 06:00 | 06:00 | 06:00 | 21:00 previous day | 16:00 previous day | |
| 22:00 previous day | 07:00 | 07:00 | 07:00 | 22:00 previous day | 17:00 previous day | |
| 23:00 previous day | 08:00 | 08:00 | 08:00 | 23:00 previous day | 18:00 previous day | |
| 00:00 | 09:00 | 09:00 | 09:00 | 00:00 | 19:00 previous day | |
| 01:00 | 10:00 | 10:00 | 10:00 | 01:00 | 20:00 previous day | |
| 02:00 | 11:00 | 11:00 | 11:00 | 02:00 | 21:00 previous day | |
| 03:00 | 12:00 | 12:00 | 12:00 | 03:00 | 22:00 previous day | |
| 04:00 | 13:00 | 13:00 | 13:00 | 04:00 | 23:00 previous day | |
| 05:00 | 14:00 | 14:00 | 14:00 | 05:00 | 00:00 | |
| 06:00 | 15:00 | 15:00 | 15:00 | 06:00 | 01:00 | |
| 07:00 | 16:00 | 16:00 | 16:00 | 07:00 | 02:00 | |
| 08:00 | 17:00 | 17:00 | 17:00 | 08:00 | 03:00 | |
| 09:00 | 18:00 | 18:00 | 18:00 | 09:00 | 04:00 | |
| 10:00 | 19:00 | 19:00 | 19:00 | 10:00 | 05:00 | |
| 11:00 | 20:00 | 20:00 | 20:00 | 11:00 | 06:00 | |
| 12:00 | 21:00 | 21:00 | 21:00 | 12:00 | 07:00 | |
| 13:00 | 22:00 | 22:00 | 22:00 | 13:00 | 08:00 | |
| 14:00 | 23:00 | 23:00 | 23:00 | 14:00 | 09:00 | |
| 15:00 | 00:00 next day | 00:00 next day | 00:00 next day | 15:00 | 10:00 |
Hong Kong Time
Offset: HKT is 8 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Hong Kong
Principal Cities: The largest city in the HKT time zone is Hong Kong in Hong Kong, with about 7.396 million people.
Daylight Saving: Clocks in Hong Kong Time (HKT) do not change for daylight saving time, so HKT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
HKT 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 east of the zero meridian.
- Hotel - Military abbreviation for HKT
- H - short form of 'Hotel'
- Asia/Hong_Kong
- Hongkong
- ACT - ASEAN Common Time
- AWST - Australian Western Standard Time
- BNT - Brunei Darussalam Time
- CAST - Casey Time
- CHOT - Choibalsan Time
- CST - China Standard Time
- H - Hotel Time Zone
- HKT - Hong Kong Time
- HOVST - Hovd Summer Time
- IRKT - Irkutsk Time
- KRAST - Krasnoyarsk Summer Time
- MYT - Malaysia Time
- PHT - Philippine Time
- SGT - Singapore Time
- ULAT - Ulaanbaatar Time
- WITA - Central Indonesian Time
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
Japan Standard Time
Offset: JST is 9 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Japan
Principal Cities: The largest city in the JST time zone is Tokyo in Japan, with about 9.733 million people. Other major cities in this time zone include Yokohama, Osaka, Nagoya, Sapporo.
Daylight Saving: Clocks in Japan Standard Time (JST) do not change for daylight saving time, so JST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
Current time in Japan: Japan time now
JST representations, usage and related time zones
- +09 - basic short
- +0900 - basic
- +09:00 - extended
- +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
- India - Military abbreviation for JST
- I - short form of 'India'
- Asia/Tokyo
- Japan
- AWDT - Australian Western Daylight Time
- CHOST - Choibalsan Summer Time
- I - India Time Zone
- IRKST - Irkutsk Summer Time
- JST - Japan Standard Time
- KST - Korea Standard Time
- PWT - Palau Time
- TLT - East Timor Time
- ULAST - Ulaanbaatar Summer Time
- WIT - Eastern Indonesian Time
- YAKT - Yakutsk Time
Seoul Time Zone and Facts
Time Zone
Seoul Facts
Korea Standard Time
Offset: KST is 9 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: North Korea, South Korea
Principal Cities: The largest city in the KST time zone is Seoul in South Korea, with about 10.349 million people. Other major cities in this time zone include Busan, Pyongyang, Incheon, Daegu.
Daylight Saving: Clocks in Korea Standard Time (KST) do not change for daylight saving time, so KST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
KST representations, usage and related time zones
- +09 - basic short
- +0900 - basic
- +09:00 - extended
- +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
- India - Military abbreviation for KST
- I - short form of 'India'
- Asia/Pyongyang
- Asia/Seoul
- ROK
- Korea Standard Time - UTC +9
- Pyongyang Time - UTC +8:30
- AWDT - Australian Western Daylight Time
- CHOST - Choibalsan Summer Time
- I - India Time Zone
- IRKST - Irkutsk Summer Time
- JST - Japan Standard Time
- KST - Korea Standard Time
- PWT - Palau Time
- TLT - East Timor Time
- ULAST - Ulaanbaatar Summer Time
- WIT - Eastern Indonesian Time
- YAKT - Yakutsk Time
London Time Zone and Facts
Time Zone
BST – British Summer Time, UTC+1 (daylight saving time)
London Facts
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