South Korea
KST
UTC
Universal Time Coordinated
GMT +0
GMT
Greenwich Mean Time
GMT +0

Time Difference

KST (Korea Standard Time) is 9 hours ahead of Universal Time Coordinated and 9 hours ahead of Greenwich Mean Time
5:30 pm17:30 in Seoul, South Korea is 8:30 am08:30 in UTC and is 8:30 am08:30 in GMT

Seoul to UTC call time
Best time for a conference call or a meeting is between 5pm-7pm in Seoul which corresponds to 8am-10am in UTC
Seoul to GMT call time
Best time for a conference call or a meeting is between 5pm-7pm in Seoul which corresponds to 8am-10am in GMT

5:30 pm17:30 KST (Korea Standard Time) (Seoul, South Korea). Offset UTC +9:00 hours
8:30 am08:30 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
8:30 am08:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours

5:30 pm17:30 Seoul, South Korea / 8:30 am08:30 UTC / 8:30 am08:30 GMT

Seoul, South Korea UTC GMT
12am (midnight) 3pm 3pm
1am 4pm 4pm
2am 5pm 5pm
3am 6pm 6pm
4am 7pm 7pm
5am 8pm 8pm
6am 9pm 9pm
7am 10pm 10pm
8am 11pm 11pm
9am 12am (midnight) 12am (midnight)
10am 1am 1am
11am 2am 2am
12pm (noon) 3am 3am
1pm 4am 4am
2pm 5am 5am
3pm 6am 6am
4pm 7am 7am
5pm 8am 8am
6pm 9am 9am
7pm 10am 10am
8pm 11am 11am
9pm 12pm (noon) 12pm (noon)
10pm 1pm 1pm
11pm 2pm 2pm
0:00 15:00 15:00
1:00 16:00 16:00
2:00 17:00 17:00
3:00 18:00 18:00
4:00 19:00 19:00
5:00 20:00 20:00
6:00 21:00 21:00
7:00 22:00 22:00
8:00 23:00 23:00
9:00 0:00 0:00
10:00 1:00 1:00
11:00 2:00 2:00
12:00 3:00 3:00
13:00 4:00 4:00
14:00 5:00 5:00
15:00 6:00 6:00
16:00 7:00 7:00
17:00 8:00 8:00
18:00 9:00 9:00
19:00 10:00 10:00
20:00 11:00 11:00
21:00 12:00 12:00
22:00 13:00 13:00
23:00 14:00 14:00

Seoul Information

Time Zone

Abbreviation / Name
KST - Korea Standard Time
UTC / GMT Offset
+9:00 hours during Korea Standard Time, currently in use.

Seoul Facts

Country
South Korea
Alternative Names
Hanyang, SEL, Seoel, Seol, Seoul, Seoul-si, Seuel, Seul, Seula, Seulas, Seulo, Seulum, Seúl, Seül, Siul, Soeul, Sol, Soul, Sye-ul, Syou-ouen, Szoeul, Szöul, Séoul, Sêûl, Söul, Sŏul, Wang-ching, Wo-jo, Wō-jō, ciyol, han-yang, saul, seoul, seoulsi, seoulteugbyeolsi, seuli, shou er, shou er te bie shi, si'ula, siyola, sol, sola, souru, souru te bie shi, sywl, Σεούλ, Сеул, Соул, Сөүл, Սեուլ, סאול, סיאול, סעאל, سئول, سيول, سیول, سێئول, سېئول, सियोल, सोल, সিউল, சியோல், ಸೌಲ್, സോൾ, โซล, སེ་ཨུལ།, ဆိုးလ်မြို့, სეული, ሶል, សេអ៊ូល, ソウル, ソウル特別市, 首尔, 首尔特别市, 서울, 서울시, 서울특별시, 한양
Population
10,349,312
Currency
Won (KRW)
Geographic Coordinates
37° 33' N Latitude / 126° 58' E Longitude
International Dialing Code
+82

Universal Time Coordinated

Offset: UTC is 0 hours ahead Greenwich Mean Time (GMT) and is used in Universal

Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but is used by the scientific community.
UTC is the time standard commonly used across the world since 1972. It is used in many technical fields, like aviation industry and meteorologists, also used to synchronize time across internet networks.

UTC representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates zero hour and zero minutes time differences of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for UTC
  • Z - short form of 'Zulu'
IANA/Olson: Reflects UTC time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Etc/UCT
  • Etc/UTC
  • Etc/Universal
  • Etc/Zulu
  • UCT
  • UTC
  • Universal
  • Zulu
Time zones with the GMT +0 offset:
  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Universal Time Coordinated
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone

Greenwich Mean Time

Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe

Countries: It is used in following countries: Burkina Faso, Côte d'Ivoire, Britain (UK), Guernsey, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Ireland, Isle of Man, Iceland, Jersey, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo

Principal Cities: The largest city in the GMT timezone is London from United Kingdom with population about 7.557 million people. Other major cities in the area are Abidjan, Dakar, Grand Dakar, Accra

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 for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.

GMT Time Zone Geo Map
GMT timezone map

GMT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates zero hour and zero minutes time differences of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for GMT
  • Z - short form of 'Zulu'
IANA/Olson: Reflects GMT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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
GMT Abbreviation: Several time zones share GMT abbreviation and it could refer to these time zones
  • Greenwich Mean Time - UTC +0
  • GMT+03:00 - UTC +3
  • GMT - UTC +1
  • GMT-01:00 - UTC -1
  • GMT+11:00 - UTC +11
Time zones with the GMT +0 offset:
  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Universal Time Coordinated
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone