GMT
Greenwich Mean Time
GMT +0
CEST (Central European Summer Time)
GMT +2
BST (British Summer Time)
GMT +1
EDT (Eastern Daylight Time)
GMT -4
PDT (Pacific Daylight Time)
GMT -7
CST (China Standard Time)
GMT +8
JST (Japan Standard Time)
GMT +9

Time Difference

Greenwich Mean Time is 2 hours behind of CEST (Central European Summer Time) and 1 hours behind of BST (British Summer Time) and 4 hours ahead of EDT (Eastern Daylight Time) and 7 hours ahead of PDT (Pacific Daylight Time) and 8 hours behind of CST (China Standard Time) and 9 hours behind of JST (Japan Standard Time)
So 2:00 pm14:00 in GMT is 4:00 pm16:00 in Berlin, Germany and is 3:00 pm15:00 in London, United Kingdom and is 10:00 am10:00 in New York City, New York, USA and is 7:00 am07:00 in San Francisco, California, USA and is 10:00 pm22:00 in Shanghai, China and is 11:00 pm23:00 in Tokyo, Japan

2:00 pm14:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
4:00 pm16:00 CEST (Central European Summer Time) (Berlin, Germany). Offset UTC +2:00 hours
3:00 pm15:00 BST (British Summer Time) (London, United Kingdom). Offset UTC +1:00 hour
10:00 am10:00 EDT (Eastern Daylight Time) (New York City, New York, USA). Offset UTC -4:00 hours
7:00 am07:00 PDT (Pacific Daylight Time) (San Francisco, California, USA). Offset UTC -7:00 hours
10:00 pm22:00 CST (China Standard Time) (Shanghai, China). Offset UTC +8:00 hours
11:00 pm23:00 JST (Japan Standard Time) (Tokyo, Japan). Offset UTC +9:00 hours

2:00 pm14:00 GMT / 4:00 pm16:00 Berlin, Germany / 3:00 pm15:00 London, United Kingdom / 10:00 am10:00 New York City, New York, USA / 7:00 am07:00 San Francisco, California, USA / 10:00 pm22:00 Shanghai, China / 11:00 pm23:00 Tokyo, Japan

GMT Berlin, Germany London, United Kingdom New York City, New York, USA San Francisco, California, USA Shanghai, China Tokyo, Japan
12am (midnight) 2am 1am 8pm 5pm 8am 9am
1am 3am 2am 9pm 6pm 9am 10am
2am 4am 3am 10pm 7pm 10am 11am
3am 5am 4am 11pm 8pm 11am 12pm (noon)
4am 6am 5am 12am (midnight) 9pm 12pm (noon) 1pm
5am 7am 6am 1am 10pm 1pm 2pm
6am 8am 7am 2am 11pm 2pm 3pm
7am 9am 8am 3am 12am (midnight) 3pm 4pm
8am 10am 9am 4am 1am 4pm 5pm
9am 11am 10am 5am 2am 5pm 6pm
10am 12pm (noon) 11am 6am 3am 6pm 7pm
11am 1pm 12pm (noon) 7am 4am 7pm 8pm
12pm (noon) 2pm 1pm 8am 5am 8pm 9pm
1pm 3pm 2pm 9am 6am 9pm 10pm
2pm 4pm 3pm 10am 7am 10pm 11pm
3pm 5pm 4pm 11am 8am 11pm 12am (midnight)
4pm 6pm 5pm 12pm (noon) 9am 12am (midnight) 1am
5pm 7pm 6pm 1pm 10am 1am 2am
6pm 8pm 7pm 2pm 11am 2am 3am
7pm 9pm 8pm 3pm 12pm (noon) 3am 4am
8pm 10pm 9pm 4pm 1pm 4am 5am
9pm 11pm 10pm 5pm 2pm 5am 6am
10pm 12am (midnight) 11pm 6pm 3pm 6am 7am
11pm 1am 12am (midnight) 7pm 4pm 7am 8am
0:00 2:00 1:00 20:00 17:00 8:00 9:00
1:00 3:00 2:00 21:00 18:00 9:00 10:00
2:00 4:00 3:00 22:00 19:00 10:00 11:00
3:00 5:00 4:00 23:00 20:00 11:00 12:00
4:00 6:00 5:00 0:00 21:00 12:00 13:00
5:00 7:00 6:00 1:00 22:00 13:00 14:00
6:00 8:00 7:00 2:00 23:00 14:00 15:00
7:00 9:00 8:00 3:00 0:00 15:00 16:00
8:00 10:00 9:00 4:00 1:00 16:00 17:00
9:00 11:00 10:00 5:00 2:00 17:00 18:00
10:00 12:00 11:00 6:00 3:00 18:00 19:00
11:00 13:00 12:00 7:00 4:00 19:00 20:00
12:00 14:00 13:00 8:00 5:00 20:00 21:00
13:00 15:00 14:00 9:00 6:00 21:00 22:00
14:00 16:00 15:00 10:00 7:00 22:00 23:00
15:00 17:00 16:00 11:00 8:00 23:00 0:00
16:00 18:00 17:00 12:00 9:00 0:00 1:00
17:00 19:00 18:00 13:00 10:00 1:00 2:00
18:00 20:00 19:00 14:00 11:00 2:00 3:00
19:00 21:00 20:00 15:00 12:00 3:00 4:00
20:00 22:00 21:00 16:00 13:00 4:00 5:00
21:00 23:00 22:00 17:00 14:00 5:00 6:00
22:00 0:00 23:00 18:00 15:00 6:00 7:00
23:00 1:00 0:00 19:00 16:00 7:00 8:00

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

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
  • +00 -


CEST (Central European Summer Time)

Offset: CEST is 2 hours ahead Greenwich Mean Time (GMT) and is used in Europe

Countries: It is used in following countries: Andorra, Albania, Austria, Bosnia & Herzegovina, Belgium, Switzerland, Czech Republic, Germany, Denmark, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, Vatican City

Principal Cities: The largest city in the CEST timezone is Berlin from Germany with population about 3.426 million people. Other major cities in the area are Madrid, Rome, Paris, Budapest

Daylight Saving: Central European Summer Time (CEST) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Central European Time (CET).

Start: Central European Summer Time (CEST) starts annually on the same date and time. and clocks were set one hour forward on Sunday, March 25, 2018, at 2:00 (2:00 am) local time.

End: Central European Summer Time (CEST) ends annually on the same date and time. and clocks are set one hour back on Sunday, October 28, 2018, at 3:00 (3:00 am) local time.

German: MESZ - Mitteleuropäische Sommerzeit

Berlin, Germany Time Zone Geo Map
Berlin, Germany timezone map
Berlin, Germany representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +02 - basic short
  • +0200 - basic
  • +02:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates two 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
  • Bravo - Military abbreviation for CEST
  • B - short form of 'Bravo'

IANA/Olson: Reflects CEST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Ceuta
  • Arctic/Longyearbyen
  • Atlantic/Jan_Mayen
  • CET
  • Europe/Amsterdam
  • Europe/Andorra
  • Europe/Belgrade
  • Europe/Berlin
  • Europe/Bratislava
  • Europe/Brussels
  • Europe/Budapest
  • Europe/Busingen
  • Europe/Copenhagen
  • Europe/Gibraltar
  • Europe/Ljubljana
  • Europe/Luxembourg
  • Europe/Madrid
  • Europe/Malta
  • Europe/Monaco
  • Europe/Oslo
  • Europe/Paris
  • Europe/Podgorica
  • Europe/Prague
  • Europe/Rome
  • Europe/San_Marino
  • Europe/Sarajevo
  • Europe/Skopje
  • Europe/Stockholm
  • Europe/Tirane
  • Europe/Vaduz
  • Europe/Vatican
  • Europe/Vienna
  • Europe/Warsaw
  • Europe/Zagreb
  • Europe/Zurich
  • Poland

Time zones with the GMT +2 offset:

  • CEST - Central European Summer Time
  • EET - Eastern European Time
  • MESZ - Mitteleuropäische Sommerzeit
  • B - Bravo Time Zone
  • CAT - Central Africa Time
  • IST - Israel Standard Time
  • SAST - South Africa Standard Time
  • WAST - West Africa Summer Time


BST (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) starts annually on the same date and time. and clocks were set one hour forward on Sunday, March 25, 2018, at 1:00 (1:00 am) local time.

End: British Summer Time (BST) ends annually on the same date and time. and clocks are set one hour back on Sunday, October 28, 2018, at 2:00 (2:00 am) local time.

London, United Kingdom Time Zone Geo Map
London, United Kingdom timezone map
London, United Kingdom 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

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
  • +01 -


EDT (Eastern Daylight Time)

Offset: EDT is 4 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries: It is used in following countries: Bahamas, Canada, Haiti, Turks & Caicos Is, United States

Principal Cities: The largest city in the EDT timezone is New York City from USA with population about 8.175 million people. Other major cities in the area are Toronto, Montreal, Brooklyn, Borough of Queens

Daylight Saving: Eastern Daylight Time (EDT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Eastern Standard Time (EST).

Start: Eastern Daylight Time (EDT) starts annually on the same date and time. and clocks were set one hour forward on Sunday, March 11, 2018, at 2:00 (2:00 am) local time.

End: Eastern Daylight Time (EDT) ends annually on the same date and time. and clocks are set one hour back on Sunday, November 4, 2018, at 2:00 (2:00 am) local time.

French: HAE - Heure Avancée de l'Est

Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste

New York City, New York, USA Time Zone Geo Map
New York City, New York, USA timezone map
New York City, New York, USA representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates four 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
  • Quebec - Military abbreviation for EDT
  • Q - short form of 'Quebec'

IANA/Olson: Reflects EDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Louisville
  • America/Montreal
  • America/Nassau
  • America/New_York
  • America/Nipigon
  • America/Pangnirtung
  • America/Port-au-Prince
  • America/Thunder_Bay
  • America/Toronto
  • Canada/Eastern
  • EST5EDT
  • US/East-Indiana
  • US/Eastern
  • US/Michigan

Time zones with the GMT -4 offset:

  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • FKT - Falkland Island Time
  • GYT - Guyana Time
  • PYT - Paraguay Time
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time
  • -04 -


PDT (Pacific Daylight Time)

Offset: PDT is 7 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries: It is used in following countries: Canada, Mexico, United States

Principal Cities: The largest city in the PDT 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

Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Pacific Standard Time (PST).

Start: Pacific Daylight Time (PDT) starts annually on the same date and time. and clocks were set one hour forward on Sunday, March 11, 2018, at 2:00 (2:00 am) local time.

End: Pacific Daylight Time (PDT) ends annually on the same date and time. and clocks are set one hour back on Sunday, November 4, 2018, at 2:00 (2:00 am) local time.

French: HAP - Heure Avancée du Pacifique

Spanish: PT - Zona Noroeste

San Francisco, California, USA Time Zone Geo Map
San Francisco, California, USA timezone map
San Francisco, California, USA 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 seven 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
  • Tango - Military abbreviation for PDT
  • T - short form of 'Tango'

IANA/Olson: Reflects PDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Dawson
  • America/Ensenada
  • America/Los_Angeles
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • America/Whitehorse
  • Canada/Pacific
  • Canada/Yukon
  • Mexico/BajaNorte
  • PST8PDT
  • US/Pacific
  • US/Pacific-New

Time zones with the GMT -7 offset:

  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • T - Tango Time Zone


CST (China Standard Time)

Offset: CST is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries: It is used in following countries: China, Macau, Taiwan

Principal Cities: The largest city in the CST timezone is Shanghai from China with population about 14.609 million people. Other major cities in the area are Zhumadian, Taipei, Beijing, Nanchong

Daylight Saving: China Standard Time (CST) is not adjusted for daylight saving therefore CST 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, China Standard Time remains the same

Shanghai, China Time Zone Geo Map
Shanghai, China timezone map
Shanghai, China 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 east of the zero meridian.

Military/NATO: Used by the U.S. military, Chinese military and others
  • Hotel - Military abbreviation for CST
  • H - short form of 'Hotel'

IANA/Olson: Reflects CST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Chongqing
  • Asia/Chungking
  • Asia/Harbin
  • Asia/Macao
  • Asia/Macau
  • Asia/Shanghai
  • Asia/Taipei
  • PRC
  • ROC

CST Abbreviation: Several time zones share CST abbreviation and it could refer to these time zones

  • Central Standard Time - UTC -6
  • China Standard Time - UTC +8
  • Cuba Standard Time - UTC -5

Time zones with the GMT +8 offset:

  • 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
  • +08 -


JST (Japan Standard Time)

Offset: JST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries: It is used in following countries: Japan

Principal Cities: The largest city in the JST timezone is Tokyo from Japan with population about 8.337 million people. Other major cities in the area are Yokohama, Osaka shi, Nagoya shi, Sapporo

Daylight Saving: Japan Standard Time (JST) is not adjusted for daylight saving therefore JST 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, Japan Standard Time remains the same

Tokyo, Japan Time Zone Geo Map
Tokyo, Japan timezone map
Tokyo, Japan 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 JST
  • I - short form of 'India'

IANA/Olson: Reflects JST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Tokyo
  • Japan

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
  • +09 -