GMT
Greenwich Mean Time
GMT +0
CEST/CET
Central European Summer Time
GMT +2
CET automatically adjusted to CEST time zone, that is in use
EEST
Eastern European Summer Time
GMT +3
EDT/EST
Eastern Daylight Time
GMT -4
EST automatically adjusted to EDT time zone, that is in use
PDT
Pacific Daylight Time
GMT -7
ACDT
Australian Central Daylight Time
GMT +10:30

Time Difference

Greenwich Mean Time is 2 hours behind of Central European Summer Time and 3 hours behind of Eastern European Summer Time and 4 hours ahead of Eastern Daylight Time and 7 hours ahead of Pacific Daylight Time and 10 hours and 30 minutes behind of Australian Central Daylight Time
So 1:00 pm13:00 in GMT is 3:00 pm15:00 in CEST and is 4:00 pm16:00 in EEST and is 9:00 am09:00 in EDT and is 6:00 am06:00 in PDT and is 11:30 pm23:30 in ACDT

1:00 pm13:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
3:00 pm15:00 Central European Summer Time (CEST). Offset UTC +2:00 hours
4:00 pm16:00 Eastern European Summer Time (EEST). Offset UTC +3:00 hours
9:00 am09:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
6:00 am06:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
11:30 pm23:30 Australian Central Daylight Time (ACDT). Offset UTC +10:30 hours

1:00 pm13:00 GMT / 3:00 pm15:00 CEST / 4:00 pm16:00 EEST / 9:00 am09:00 EDT / 6:00 am06:00 PDT / 11:30 pm23:30 ACDT

GMT CEST EEST EDT PDT ACDT
12am (midnight) 2am 3am 8pm 5pm 10:30 am
1am 3am 4am 9pm 6pm 11:30 am
2am 4am 5am 10pm 7pm 12:30 pm
3am 5am 6am 11pm 8pm 1:30 pm
4am 6am 7am 12am (midnight) 9pm 2:30 pm
5am 7am 8am 1am 10pm 3:30 pm
6am 8am 9am 2am 11pm 4:30 pm
7am 9am 10am 3am 12am (midnight) 5:30 pm
8am 10am 11am 4am 1am 6:30 pm
9am 11am 12pm (noon) 5am 2am 7:30 pm
10am 12pm (noon) 1pm 6am 3am 8:30 pm
11am 1pm 2pm 7am 4am 9:30 pm
12pm (noon) 2pm 3pm 8am 5am 10:30 pm
1pm 3pm 4pm 9am 6am 11:30 pm
2pm 4pm 5pm 10am 7am 12:30 am
3pm 5pm 6pm 11am 8am 1:30 am
4pm 6pm 7pm 12pm (noon) 9am 2:30 am
5pm 7pm 8pm 1pm 10am 3:30 am
6pm 8pm 9pm 2pm 11am 4:30 am
7pm 9pm 10pm 3pm 12pm (noon) 5:30 am
8pm 10pm 11pm 4pm 1pm 6:30 am
9pm 11pm 12am (midnight) 5pm 2pm 7:30 am
10pm 12am (midnight) 1am 6pm 3pm 8:30 am
11pm 1am 2am 7pm 4pm 9:30 am
0:00 2:00 3:00 20:00 17:00 10:30
1:00 3:00 4:00 21:00 18:00 11:30
2:00 4:00 5:00 22:00 19:00 12:30
3:00 5:00 6:00 23:00 20:00 13:30
4:00 6:00 7:00 0:00 21:00 14:30
5:00 7:00 8:00 1:00 22:00 15:30
6:00 8:00 9:00 2:00 23:00 16:30
7:00 9:00 10:00 3:00 0:00 17:30
8:00 10:00 11:00 4:00 1:00 18:30
9:00 11:00 12:00 5:00 2:00 19:30
10:00 12:00 13:00 6:00 3:00 20:30
11:00 13:00 14:00 7:00 4:00 21:30
12:00 14:00 15:00 8:00 5:00 22:30
13:00 15:00 16:00 9:00 6:00 23:30
14:00 16:00 17:00 10:00 7:00 0:30
15:00 17:00 18:00 11:00 8:00 1:30
16:00 18:00 19:00 12:00 9:00 2:30
17:00 19:00 20:00 13:00 10:00 3:30
18:00 20:00 21:00 14:00 11:00 4:30
19:00 21:00 22:00 15:00 12:00 5:30
20:00 22:00 23:00 16:00 13:00 6:30
21:00 23:00 0:00 17:00 14:00 7:30
22:00 0:00 1:00 18:00 15:00 8:30
23:00 1:00 2:00 19:00 16:00 9:30

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 -


Central European Time

Offset: CET is 1 hour 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, Algeria, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, Tunisia, Vatican City

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

Daylight Saving: This is a standard timezone, however during summer some places adjust time for one hour forward for daylight saving and observe Central European Summer Time (CEST).

End: CET ended and clocks were set one hour forward on Sunday, March 29, 2020, at 2:00 (2:00 am) local time.

Start: CET starts and clocks are set one hour back on Sunday, October 25, 2020, at 3:00 (3:00 am) local time.

German: MEZ - Mitteleuropäische Zeit

CET Time Zone Geo Map
CET timezone map
CET 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 CET
  • A - short form of 'Alpha'

IANA/Olson: Reflects CET time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Algiers
  • Africa/Ceuta
  • Africa/Tunis
  • 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 +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 -


Eastern European Summer Time

Offset: EEST is 3 hours ahead Greenwich Mean Time (GMT) and is used in Europe

Countries: It is used in following countries: Åland Islands, Bulgaria, Cyprus, Estonia, Finland, Greece, Jordan, Lebanon, Lithuania, Latvia, Moldova, Palestine, Romania, Syria, Ukraine

Principal Cities: The largest city in the EEST timezone is Kiev from Ukraine with population about 2.798 million people. Other major cities in the area are Beirut, Bucharest, Aleppo, Damascus

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

Start: Eastern European Summer Time (EEST) starts annually on the same date and time. and clocks were set one hour forward on Friday, March 27, 2020, at 0:00 (0:00 am) local time.

End: Eastern European Summer Time (EEST) ends annually on the same date and time. and clocks are set one hour back on Friday, October 30, 2020, at 1:00 (1:00 am) local time.

German: OESZ - Osteuropäische Sommerzeit

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

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +03 - basic short
  • +0300 - basic
  • +03:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0300 - sign character (+) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates three 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
  • Charlie - Military abbreviation for EEST
  • C - short form of 'Charlie'

IANA/Olson: Reflects EEST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Amman
  • Asia/Beirut
  • Asia/Damascus
  • Asia/Famagusta
  • Asia/Gaza
  • Asia/Hebron
  • Asia/Nicosia
  • EET
  • Europe/Athens
  • Europe/Bucharest
  • Europe/Chisinau
  • Europe/Helsinki
  • Europe/Kiev
  • Europe/Mariehamn
  • Europe/Nicosia
  • Europe/Riga
  • Europe/Sofia
  • Europe/Tallinn
  • Europe/Tiraspol
  • Europe/Uzhgorod
  • Europe/Vilnius
  • Europe/Zaporozhye

Time zones with the GMT +3 offset:

  • EEST - Eastern European Summer Time
  • MSK - Moscow Standard Time
  • AST - Arabia Standard Time
  • C - Charlie Time Zone
  • EAT - Eastern Africa Time
  • FET - Further Eastern European Time
  • IDT - Israel Daylight Time
  • TRT - Turkey Time
  • +03 -


Eastern Standard Time

Offset: EST is 5 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries: It is used in following countries: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States

Principal Cities: The largest city in the EST 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: This is a standard timezone, however during summer some places adjust time for one hour forward for daylight saving and observe Eastern Daylight Time (EDT).

End: EST ends annually on the same date and time. and clocks were set one hour forward on Sunday, March 8, 2020, at 2:00 (2:00 am) local time.

Start: EST starts annually on the same date and time. and clocks are set one hour back on Sunday, November 1, 2020, at 2:00 (2:00 am) local time.

French: HNE - Heure Normale de l'Est

Spanish: ET - Tiempo del Este, ET - Zona Sureste

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

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -05 - basic short
  • -0500 - basic
  • -05:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates five 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
  • Romeo - Military abbreviation for EST
  • R - short form of 'Romeo'

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

Time zones with the GMT -5 offset:

  • 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
  • -05 -
  • CWT -


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 8, 2020, 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 1, 2020, at 2:00 (2:00 am) local time.

French: HAP - Heure Avancée du Pacifique

Spanish: PT - Zona Noroeste

PDT Time Zone Geo Map
PDT timezone map
PDT 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


Australian Central Daylight Time

Offset: ACDT is 10 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Australia

Countries: It is used in following countries: Australia

Principal Cities: The largest city in the ACDT timezone is Adelaide from Australia with population about 1.225 million people. Other major cities in the area are Adelaide Hills, Mount Gambier, Morphett Vale, Prospect

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

Start: Australian Central Daylight Time (ACDT) starts annually on the same date and time. and clocks were set one hour forward on Sunday, October 6, 2019, at 2:00 (2:00 am) local time.

End: Australian Central Daylight Time (ACDT) ends annually on the same date and time. and clocks are set one hour back on Sunday, April 5, 2020, at 3:00 (3:00 am) local time.

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

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1030 - basic
  • +10:30 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1030 - sign character (+) followed by a four digit time providing hours (10) and minutes (30) of the offset. Indicates ten hour and thirty minutes time differences to the east of the zero meridian.

IANA/Olson: Reflects ACDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/Adelaide
  • Australia/Broken_Hill
  • Australia/South
  • Australia/Yancowinna

Time zones with the GMT +10:30 offset:

  • ACDT - Australian Central Daylight Time
  • LHST - Lord Howe Standard Time