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UTC
Universal Time Coordinated
GMT +0
KST
Korea Standard Time
GMT +9
PT/PDT
Pacific Time
GMT -7
BST
British Summer Time
GMT +1
GMT
Greenwich Mean Time
GMT +0
Time Difference
Universal Time Coordinated is 9 hours behind Korea Standard Time and 7 hours ahead of Pacific Daylight Time and 1 hours behind British Summer Time and 5 hours and 30 minutes behind India Standard Time and 0 hours ahead of Greenwich Mean Time
1:00 am01:00 in UTC is 10:00 am10:00 in KST and is 6:00 pm18:00 in PDT and is 2:00 am02:00 in BST and is 6:30 am06:30 in IST and is 1:00 am01:00 in GMT
UTC to KST call time
Best time for a conference call or a meeting is between 8am-10am in UTC which corresponds to 5pm-7pm in KST
UTC to PT call time
Best time for a conference call or a meeting is between 4pm-6pm in UTC which corresponds to 8am-10am in PT
UTC to BST call time
Best time for a conference call or a meeting is between 8am-5pm in UTC which corresponds to 9am-6pm in BST
UTC to IST call time
Best time for a conference call or a meeting is between 8am-12:30pm in UTC which corresponds to 1:30pm-6pm in IST
UTC to GMT call time
Best time for a conference call or a meeting is between 8am-6pm in UTC which corresponds to 8am-6pm in GMT
1:00 am01:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
10:00 am10:00 Korea Standard Time (KST). Offset UTC +9:00 hours
6:00 pm18:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
2:00 am02:00 British Summer Time (BST). Offset UTC +1:00 hour
6:30 am06:30 India Standard Time (IST). Offset UTC +5:30 hours
1:00 am01:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
1:00 am01:00 UTC / 10:00 am10:00 KST / 6:00 pm18:00 PDT / 2:00 am02:00 BST / 6:30 am06:30 IST / 1:00 am01:00 GMT
| UTC | KST | PT | BST | IST | GMT |
|---|---|---|---|---|---|
| 12am (midnight) | 9am | 5pm | 1am | 5:30 am | 12am (midnight) |
| 1am | 10am | 6pm | 2am | 6:30 am | 1am |
| 2am | 11am | 7pm | 3am | 7:30 am | 2am |
| 3am | 12pm (noon) | 8pm | 4am | 8:30 am | 3am |
| 4am | 1pm | 9pm | 5am | 9:30 am | 4am |
| 5am | 2pm | 10pm | 6am | 10:30 am | 5am |
| 6am | 3pm | 11pm | 7am | 11:30 am | 6am |
| 7am | 4pm | 12am (midnight) | 8am | 12:30 pm | 7am |
| 8am | 5pm | 1am | 9am | 1:30 pm | 8am |
| 9am | 6pm | 2am | 10am | 2:30 pm | 9am |
| 10am | 7pm | 3am | 11am | 3:30 pm | 10am |
| 11am | 8pm | 4am | 12pm (noon) | 4:30 pm | 11am |
| 12pm (noon) | 9pm | 5am | 1pm | 5:30 pm | 12pm (noon) |
| 1pm | 10pm | 6am | 2pm | 6:30 pm | 1pm |
| 2pm | 11pm | 7am | 3pm | 7:30 pm | 2pm |
| 3pm | 12am (midnight) | 8am | 4pm | 8:30 pm | 3pm |
| 4pm | 1am | 9am | 5pm | 9:30 pm | 4pm |
| 5pm | 2am | 10am | 6pm | 10:30 pm | 5pm |
| 6pm | 3am | 11am | 7pm | 11:30 pm | 6pm |
| 7pm | 4am | 12pm (noon) | 8pm | 12:30 am | 7pm |
| 8pm | 5am | 1pm | 9pm | 1:30 am | 8pm |
| 9pm | 6am | 2pm | 10pm | 2:30 am | 9pm |
| 10pm | 7am | 3pm | 11pm | 3:30 am | 10pm |
| 11pm | 8am | 4pm | 12am (midnight) | 4:30 am | 11pm |
| 0:00 | 9:00 | 17:00 | 1:00 | 5:30 | 0:00 |
| 1:00 | 10:00 | 18:00 | 2:00 | 6:30 | 1:00 |
| 2:00 | 11:00 | 19:00 | 3:00 | 7:30 | 2:00 |
| 3:00 | 12:00 | 20:00 | 4:00 | 8:30 | 3:00 |
| 4:00 | 13:00 | 21:00 | 5:00 | 9:30 | 4:00 |
| 5:00 | 14:00 | 22:00 | 6:00 | 10:30 | 5:00 |
| 6:00 | 15:00 | 23:00 | 7:00 | 11:30 | 6:00 |
| 7:00 | 16:00 | 0:00 | 8:00 | 12:30 | 7:00 |
| 8:00 | 17:00 | 1:00 | 9:00 | 13:30 | 8:00 |
| 9:00 | 18:00 | 2:00 | 10:00 | 14:30 | 9:00 |
| 10:00 | 19:00 | 3:00 | 11:00 | 15:30 | 10:00 |
| 11:00 | 20:00 | 4:00 | 12:00 | 16:30 | 11:00 |
| 12:00 | 21:00 | 5:00 | 13:00 | 17:30 | 12:00 |
| 13:00 | 22:00 | 6:00 | 14:00 | 18:30 | 13:00 |
| 14:00 | 23:00 | 7:00 | 15:00 | 19:30 | 14:00 |
| 15:00 | 0:00 | 8:00 | 16:00 | 20:30 | 15:00 |
| 16:00 | 1:00 | 9:00 | 17:00 | 21:30 | 16:00 |
| 17:00 | 2:00 | 10:00 | 18:00 | 22:30 | 17:00 |
| 18:00 | 3:00 | 11:00 | 19:00 | 23:30 | 18:00 |
| 19:00 | 4:00 | 12:00 | 20:00 | 0:30 | 19:00 |
| 20:00 | 5:00 | 13:00 | 21:00 | 1:30 | 20:00 |
| 21:00 | 6:00 | 14:00 | 22:00 | 2:30 | 21:00 |
| 22:00 | 7:00 | 15:00 | 23:00 | 3:30 | 22:00 |
| 23:00 | 8:00 | 16:00 | 0:00 | 4:30 | 23:00 |
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
Korea Standard Time
Offset: KST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: Korea (North), Korea (South)
Principal Cities: The largest city in the KST timezone is Seoul from South Korea with population about 10.349 million people. Other major cities in the area are Busan, Pyongyang, Incheon, Daegu
Daylight Saving: Korea Standard Time (KST) is not adjusted for daylight saving therefore KST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, Korea Standard Time remains the same
KST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +09 - basic short
- +0900 - basic
- +09:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates nine hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- India - Military abbreviation for KST
- I - short form of 'India'
IANA/Olson: Reflects KST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- Asia/Pyongyang
- Asia/Seoul
- ROK
KST Abbreviation: Several time zones share KST abbreviation and it could refer to these time zones
- Korea Standard Time - UTC +9
- Pyongyang Time - UTC +8:30
Time zones with the GMT +9 offset:
- 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
Pacific Time
Pacific Time (PT) is a general term used to describe the areas that observe either the Pacific Standard Time (PST) or Pacific Daylight Time (PDT) in the United States and Canada. PT also called Pacific Coast Time. PT is not static but switches between PDT and PST.
Territories observing the Pacific Time Zone are primarily in North America. It runs through the western part of Canada, the United States and the Northwestern part of Mexico.
Countries: It is used in following countries: Canada, Mexico, United States.
Principal Cities: The largest city in the PST timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose.
French: HNP - Heure Normale du Pacifique
Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste
Pacific Time (PT) is a general term used to describe the areas that observe either the Pacific Standard Time (PST) or Pacific Daylight Time (PDT) in the United States and Canada. PT also called Pacific Coast Time. PT is not static but switches between PDT and PST.
Territories observing the Pacific Time Zone are primarily in North America. It runs through the western part of Canada, the United States and the Northwestern part of Mexico.
Countries: It is used in following countries: Canada, Mexico, United States.
Principal Cities: The largest city in the PST timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose.
French: HNP - Heure Normale du Pacifique
Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste
PT representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- -08 - basic short
- -0800 - basic
- -08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates eight 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
- Uniform - Military abbreviation for PT
- U - short form of 'Uniform'
PT Abbreviation: Several time zones share PT abbreviation and it could refer to these time zones
- Pacific Time - UTC -8
- Pitcairn Time - UTC -8
Time zones with the GMT -8 offset:
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone
British Summer Time
Offset: BST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Britain (UK), Guernsey, Isle of Man, Jersey
Principal Cities: The largest city in the BST timezone is London from United Kingdom with population about 7.557 million people. Other major cities in the area are Birmingham, Glasgow, Liverpool, Saint Helier
Daylight Saving: British Summer Time (BST) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Greenwich Mean Time (GMT).
Start: British Summer Time (BST) started on Sunday, March 31, 2024 at 1:00 am local time and clocks were set one hour forward to Sunday, March 31, 2024, 2:00 am. Daylight saving starts annually the on last Sunday of March
End: British Summer Time (BST) ends on Sunday, October 27, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, October 27, 2024, 1:00 am local standard time instead. Daylight saving ends annually the on last Sunday of October
BST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +01 - basic short
- +0100 - basic
- +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates one hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Alpha - Military abbreviation for BST
- A - short form of 'Alpha'
IANA/Olson: Reflects BST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- Europe/Belfast
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
BST Abbreviation: Several time zones share BST abbreviation and it could refer to these time zones
- British Summer Time - UTC +1
- Bangladesh Standard Time - UTC +6
- Bougainville Standard Time - UTC +11
- Brasilia Standard Time - UTC -3
Time zones with the GMT +1 offset:
- BST - British Summer Time
- CET - Central European Time
- IST - Irish Standard Time
- WEST - Western European Summer Time
- A - Alpha Time Zone
- CET - Central European Time
- MEZ - Mitteleuropäische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: India
Principal Cities: The largest city in the IST timezone is Mumbai from India with population about 12.692 million people. Other major cities in the area are Delhi, Bangalore, Kolkata, Chennai
Daylight Saving: India Standard Time (IST) is not adjusted for daylight saving therefore IST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, India Standard Time remains the same
IST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +0530 - basic
- +05:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates five hour and thirty minutes time differences to the east of the zero meridian.
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- Asia/Calcutta
- Asia/Kolkata
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
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 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 - UTC +1
- GMT+03:00 - UTC +3
- GMT+06:00 - UTC +6
- GMT+11:00 - UTC +11
- GMT-01:00 - UTC -1
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
EST to IST GMT to EST PST to EST EST to GMT PST to GMT
