PDT
Pacific Daylight Time
GMT -7
CDT
Central Daylight Time
GMT -5
EDT
Eastern Daylight Time
GMT -4
GMT
Greenwich Mean Time
GMT +0
BST
British Summer Time
GMT +1
WAT
West Africa Time
GMT +1
CEST
Central European Summer Time
GMT +2
CAT/EAT
Central Africa Time
GMT +2
EAT automatically adjusted to CAT time zone, that is in use
PKT
Pakistan Standard Time
GMT +5
IST
India Standard Time
GMT +5:30
JST
Japan Standard Time
GMT +9
KST
Korea Standard Time
GMT +9
ACDT
Australian Central Daylight Time
GMT +10:30
ACST
Australian Central Standard Time
GMT +9:30
ACST is NOT in use by many locations
ACDT (Australian Central Daylight Time) is used instead. Switch to ACDT time zone or select one of the cities Adelaide, Darwin, Adelaide Hills for automatic timezone change.

Time Difference

Pacific Daylight Time is 2 hours behind of Central Daylight Time and 3 hours behind of Eastern Daylight Time and 7 hours behind of Greenwich Mean Time and 8 hours behind of British Summer Time and 8 hours behind of West Africa Time and 9 hours behind of Central European Summer Time and 9 hours behind of Central Africa Time and 12 hours behind of Pakistan Standard Time and 12 hours and 30 minutes behind of India Standard Time and 16 hours behind of Japan Standard Time and 16 hours behind of Korea Standard Time and 17 hours and 30 minutes behind of Australian Central Daylight Time and 16 hours and 30 minutes behind of Australian Central Standard Time
2:30 am02:30 in PDT is 4:30 am04:30 in CDT and is 5:30 am05:30 in EDT and is 9:30 am09:30 in GMT and is 10:30 am10:30 in BST and is 10:30 am10:30 in WAT and is 11:30 am11:30 in CEST and is 11:30 am11:30 in CAT and is 2:30 pm14:30 in PKT and is 3:00 pm15:00 in IST and is 6:30 pm18:30 in JST and is 6:30 pm18:30 in KST and is 8:00 pm20:00 in ACDT and is 7:00 pm19:00 in ACST

PDT to CDT call time
Best time for a conference call or a meeting is between 8am-4pm in PDT which corresponds to 10am-6pm in CDT
PDT to EDT call time
Best time for a conference call or a meeting is between 8am-3pm in PDT which corresponds to 11am-6pm in EDT
PDT to GMT call time
Best time for a conference call or a meeting is between 8am-11am in PDT which corresponds to 3pm-6pm in GMT
PDT to BST call time
Best time for a conference call or a meeting is between 8am-10am in PDT which corresponds to 4pm-6pm in BST
PDT to WAT call time
Best time for a conference call or a meeting is between 8am-10am in PDT which corresponds to 4pm-6pm in WAT
PDT to CEST call time
Best time for a conference call or a meeting is between 8am-10am in PDT which corresponds to 5pm-7pm in CEST
PDT to EAT call time
Best time for a conference call or a meeting is between 8am-10am in PDT which corresponds to 6pm-8pm in EAT
PDT to PKT call time
Best time for a conference call or a meeting is between 7am-9am in PDT which corresponds to 7pm-9pm in PKT
PDT to IST call time
Best time for a conference call or a meeting is between 6:30am-8:30am in PDT which corresponds to 7pm-9pm in IST
PDT to JST call time
Best time for a conference call or a meeting is between 5am-7am in PDT which corresponds to 9pm-11pm in JST
PDT to KST call time
Best time for a conference call or a meeting is between 5am-7am in PDT which corresponds to 9pm-11pm in KST
PDT to ACDT call time
Best time for a conference call or a meeting is between 4am-6am in PDT which corresponds to 9:30pm-11:30pm in ACDT
PDT to ACST call time
Best time for a conference call or a meeting is between 4:30am-6:30am in PDT which corresponds to 9pm-11pm in ACST

2:30 am02:30 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
4:30 am04:30 Central Daylight Time (CDT). Offset UTC -5:00 hours
5:30 am05:30 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
9:30 am09:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
10:30 am10:30 British Summer Time (BST). Offset UTC +1:00 hour
10:30 am10:30 West Africa Time (WAT). Offset UTC +1:00 hour
11:30 am11:30 Central European Summer Time (CEST). Offset UTC +2:00 hours
11:30 am11:30 Central Africa Time (CAT). Offset UTC +2:00 hours
2:30 pm14:30 Pakistan Standard Time (PKT). Offset UTC +5:00 hours
3:00 pm15:00 India Standard Time (IST). Offset UTC +5:30 hours
6:30 pm18:30 Japan Standard Time (JST). Offset UTC +9:00 hours
6:30 pm18:30 Korea Standard Time (KST). Offset UTC +9:00 hours
8:00 pm20:00 Australian Central Daylight Time (ACDT). Offset UTC +10:30 hours
7:00 pm19:00 Australian Central Standard Time (ACST). Offset UTC +9:30 hours

2:30 am02:30 PDT / 4:30 am04:30 CDT / 5:30 am05:30 EDT / 9:30 am09:30 GMT / 10:30 am10:30 BST / 10:30 am10:30 WAT / 11:30 am11:30 CEST / 11:30 am11:30 CAT / 2:30 pm14:30 PKT / 3:00 pm15:00 IST / 6:30 pm18:30 JST / 6:30 pm18:30 KST / 8:00 pm20:00 ACDT / 7:00 pm19:00 ACST

PDT CDT EDT GMT BST WAT CEST CAT PKT IST JST KST ACDT ACST
12am (midnight) 2am 3am 7am 8am 8am 9am 9am 12pm (noon) 12:30 pm 4pm 4pm 5:30 pm 4:30 pm
1am 3am 4am 8am 9am 9am 10am 10am 1pm 1:30 pm 5pm 5pm 6:30 pm 5:30 pm
2am 4am 5am 9am 10am 10am 11am 11am 2pm 2:30 pm 6pm 6pm 7:30 pm 6:30 pm
3am 5am 6am 10am 11am 11am 12pm (noon) 12pm (noon) 3pm 3:30 pm 7pm 7pm 8:30 pm 7:30 pm
4am 6am 7am 11am 12pm (noon) 12pm (noon) 1pm 1pm 4pm 4:30 pm 8pm 8pm 9:30 pm 8:30 pm
5am 7am 8am 12pm (noon) 1pm 1pm 2pm 2pm 5pm 5:30 pm 9pm 9pm 10:30 pm 9:30 pm
6am 8am 9am 1pm 2pm 2pm 3pm 3pm 6pm 6:30 pm 10pm 10pm 11:30 pm 10:30 pm
7am 9am 10am 2pm 3pm 3pm 4pm 4pm 7pm 7:30 pm 11pm 11pm 12:30 am 11:30 pm
8am 10am 11am 3pm 4pm 4pm 5pm 5pm 8pm 8:30 pm 12am (midnight) 12am (midnight) 1:30 am 12:30 am
9am 11am 12pm (noon) 4pm 5pm 5pm 6pm 6pm 9pm 9:30 pm 1am 1am 2:30 am 1:30 am
10am 12pm (noon) 1pm 5pm 6pm 6pm 7pm 7pm 10pm 10:30 pm 2am 2am 3:30 am 2:30 am
11am 1pm 2pm 6pm 7pm 7pm 8pm 8pm 11pm 11:30 pm 3am 3am 4:30 am 3:30 am
12pm (noon) 2pm 3pm 7pm 8pm 8pm 9pm 9pm 12am (midnight) 12:30 am 4am 4am 5:30 am 4:30 am
1pm 3pm 4pm 8pm 9pm 9pm 10pm 10pm 1am 1:30 am 5am 5am 6:30 am 5:30 am
2pm 4pm 5pm 9pm 10pm 10pm 11pm 11pm 2am 2:30 am 6am 6am 7:30 am 6:30 am
3pm 5pm 6pm 10pm 11pm 11pm 12am (midnight) 12am (midnight) 3am 3:30 am 7am 7am 8:30 am 7:30 am
4pm 6pm 7pm 11pm 12am (midnight) 12am (midnight) 1am 1am 4am 4:30 am 8am 8am 9:30 am 8:30 am
5pm 7pm 8pm 12am (midnight) 1am 1am 2am 2am 5am 5:30 am 9am 9am 10:30 am 9:30 am
6pm 8pm 9pm 1am 2am 2am 3am 3am 6am 6:30 am 10am 10am 11:30 am 10:30 am
7pm 9pm 10pm 2am 3am 3am 4am 4am 7am 7:30 am 11am 11am 12:30 pm 11:30 am
8pm 10pm 11pm 3am 4am 4am 5am 5am 8am 8:30 am 12pm (noon) 12pm (noon) 1:30 pm 12:30 pm
9pm 11pm 12am (midnight) 4am 5am 5am 6am 6am 9am 9:30 am 1pm 1pm 2:30 pm 1:30 pm
10pm 12am (midnight) 1am 5am 6am 6am 7am 7am 10am 10:30 am 2pm 2pm 3:30 pm 2:30 pm
11pm 1am 2am 6am 7am 7am 8am 8am 11am 11:30 am 3pm 3pm 4:30 pm 3:30 pm
0:00 2:00 3:00 7:00 8:00 8:00 9:00 9:00 12:00 12:30 16:00 16:00 17:30 16:30
1:00 3:00 4:00 8:00 9:00 9:00 10:00 10:00 13:00 13:30 17:00 17:00 18:30 17:30
2:00 4:00 5:00 9:00 10:00 10:00 11:00 11:00 14:00 14:30 18:00 18:00 19:30 18:30
3:00 5:00 6:00 10:00 11:00 11:00 12:00 12:00 15:00 15:30 19:00 19:00 20:30 19:30
4:00 6:00 7:00 11:00 12:00 12:00 13:00 13:00 16:00 16:30 20:00 20:00 21:30 20:30
5:00 7:00 8:00 12:00 13:00 13:00 14:00 14:00 17:00 17:30 21:00 21:00 22:30 21:30
6:00 8:00 9:00 13:00 14:00 14:00 15:00 15:00 18:00 18:30 22:00 22:00 23:30 22:30
7:00 9:00 10:00 14:00 15:00 15:00 16:00 16:00 19:00 19:30 23:00 23:00 0:30 23:30
8:00 10:00 11:00 15:00 16:00 16:00 17:00 17:00 20:00 20:30 0:00 0:00 1:30 0:30
9:00 11:00 12:00 16:00 17:00 17:00 18:00 18:00 21:00 21:30 1:00 1:00 2:30 1:30
10:00 12:00 13:00 17:00 18:00 18:00 19:00 19:00 22:00 22:30 2:00 2:00 3:30 2:30
11:00 13:00 14:00 18:00 19:00 19:00 20:00 20:00 23:00 23:30 3:00 3:00 4:30 3:30
12:00 14:00 15:00 19:00 20:00 20:00 21:00 21:00 0:00 0:30 4:00 4:00 5:30 4:30
13:00 15:00 16:00 20:00 21:00 21:00 22:00 22:00 1:00 1:30 5:00 5:00 6:30 5:30
14:00 16:00 17:00 21:00 22:00 22:00 23:00 23:00 2:00 2:30 6:00 6:00 7:30 6:30
15:00 17:00 18:00 22:00 23:00 23:00 0:00 0:00 3:00 3:30 7:00 7:00 8:30 7:30
16:00 18:00 19:00 23:00 0:00 0:00 1:00 1:00 4:00 4:30 8:00 8:00 9:30 8:30
17:00 19:00 20:00 0:00 1:00 1:00 2:00 2:00 5:00 5:30 9:00 9:00 10:30 9:30
18:00 20:00 21:00 1:00 2:00 2:00 3:00 3:00 6:00 6:30 10:00 10:00 11:30 10:30
19:00 21:00 22:00 2:00 3:00 3:00 4:00 4:00 7:00 7:30 11:00 11:00 12:30 11:30
20:00 22:00 23:00 3:00 4:00 4:00 5:00 5:00 8:00 8:30 12:00 12:00 13:30 12:30
21:00 23:00 0:00 4:00 5:00 5:00 6:00 6:00 9:00 9:30 13:00 13:00 14:30 13:30
22:00 0:00 1:00 5:00 6:00 6:00 7:00 7:00 10:00 10:30 14:00 14:00 15:30 14:30
23:00 1:00 2:00 6:00 7:00 7:00 8:00 8:00 11:00 11:30 15:00 15:00 16:30 15:30

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, 14 March 2021, 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, 07 November 2021, 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/Ensenada
  • America/Los_Angeles
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • Canada/Pacific
  • Mexico/BajaNorte
  • PST8PDT
  • US/Pacific
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone

Central Daylight Time

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

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

Principal Cities: The largest city in the CDT timezone is Mexico City from Mexico with population about 12.294 million people. Other major cities in the area are Chicago, Havana, Houston, Iztapalapa

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

Start: Central Daylight Time (CDT) starts annually on the same date and time. and clocks were set one hour forward on Sunday, 14 March 2021, at 2:00 (2:00 am) local time.

End: Central Daylight Time (CDT) ends annually on the same date and time. and clocks are set one hour back on Sunday, 07 November 2021, at 2:00 (2:00 am) local time.

French: HAC - Heure Avancée du Centre

Spanish: CT - Zona Centro

CDT Time Zone Geo Map
CDT timezone map

CDT 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 CDT
  • R - short form of 'Romeo'
IANA/Olson: Reflects CDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Bahia_Banderas
  • America/Chicago
  • America/Indiana/Knox
  • America/Indiana/Tell_City
  • America/Knox_IN
  • America/Matamoros
  • America/Menominee
  • America/Merida
  • America/Mexico_City
  • America/Monterrey
  • America/North_Dakota/Beulah
  • America/North_Dakota/Center
  • America/North_Dakota/New_Salem
  • America/Rainy_River
  • America/Rankin_Inlet
  • America/Resolute
  • America/Winnipeg
  • CST6CDT
  • Canada/Central
  • Mexico/General
  • US/Central
  • US/Indiana-Starke
CDT Abbreviation: Several time zones share CDT abbreviation and it could refer to these time zones
  • Central Daylight Time - UTC -5
  • Cuba Daylight Time - UTC -4
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
  • ET - Ecuador Time
  • PST - Peru Standard Time
  • CST - Colombia Standard Time
  • AST - Acre Standard Time
  • -05 -

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, 14 March 2021, 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, 07 November 2021, 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

EDT Time Zone Geo Map
EDT timezone map

EDT 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
  • VT - Venezuela Time
  • -04 -

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+06:00 - UTC +6
  • GMT - UTC +1
  • GMT+04:00 - UTC +4
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
  • AST - Azores Summer Time

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, 28 March 2021, 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, 31 October 2021, at 2:00 (2:00 am) local time.

BST Time Zone Geo Map
BST timezone map

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
  • GMT - GMT
  • +01 -

West Africa Time

Offset: WAT is 1 hour ahead Greenwich Mean Time (GMT) and is used in Africa

Countries: It is used in following countries: Angola, Benin, Congo (Dem. Rep.), Central African Rep., Congo (Rep.), Cameroon, Gabon, Equatorial Guinea, Niger, Nigeria, Chad

Principal Cities: The largest city in the WAT timezone is Lagos from Nigeria with population about 9 million people. Other major cities in the area are Kinshasa, Kano, Ibadan, Luanda

Daylight Saving: West Africa Time (WAT) is not adjusted for daylight saving therefore WAT 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, West Africa Time remains the same

WAT Time Zone Geo Map
WAT timezone map

WAT 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 WAT
  • A - short form of 'Alpha'
IANA/Olson: Reflects WAT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Bangui
  • Africa/Brazzaville
  • Africa/Douala
  • Africa/Kinshasa
  • Africa/Lagos
  • Africa/Libreville
  • Africa/Luanda
  • Africa/Malabo
  • Africa/Ndjamena
  • Africa/Niamey
  • Africa/Porto-Novo
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
  • GMT - GMT
  • +01 -

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, North 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, 28 March 2021, 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, 31 October 2021, at 3:00 (3:00 am) local time.

German: MESZ - Mitteleuropäische Sommerzeit

CEST Time Zone Geo Map
CEST timezone map

CEST 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

Eastern Africa Time

Offset: EAT is 3 hours ahead Greenwich Mean Time (GMT) and is used in Africa

Countries: It is used in following countries: Djibouti, Eritrea, Ethiopia, Kenya, Comoros, Madagascar, Somalia, South Sudan, Tanzania, Uganda, Mayotte

Principal Cities: The largest city in the EAT timezone is Addis Ababa from Ethiopia with population about 2.758 million people. Other major cities in the area are Nairobi, Dar es Salaam, Mogadishu, Antananarivo

EAT Time Zone Geo Map
EAT timezone map

EAT 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 EAT
  • C - short form of 'Charlie'
IANA/Olson: Reflects EAT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Addis_Ababa
  • Africa/Asmara
  • Africa/Asmera
  • Africa/Dar_es_Salaam
  • Africa/Djibouti
  • Africa/Kampala
  • Africa/Mogadishu
  • Africa/Nairobi
  • Indian/Antananarivo
  • Indian/Comoro
  • Indian/Mayotte
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
  • MST - Moscow Standard Time
  • AST - Arabian Standard Time
  • +03 -
  • VST - Volgograd Standard Time

Pakistan Standard Time

Offset: PKT is 5 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries: It is used in following countries: Pakistan

Principal Cities: The largest city in the PKT timezone is Karachi from Pakistan with population about 11.624 million people. Other major cities in the area are Lahore, Faisalabad, Rawalpindi, Multan

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

PKT Time Zone Geo Map
PKT timezone map

PKT 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 east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Echo - Military abbreviation for PKT
  • E - short form of 'Echo'
IANA/Olson: Reflects PKT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Karachi
Time zones with the GMT +5 offset:
  • AMST - Armenia Summer Time
  • AQTT - Aqtobe Time
  • AZST - Azerbaijan Summer Time
  • E - Echo Time Zone
  • MAWT - Mawson Time
  • MVT - Maldives Time
  • ORAT - Oral Time
  • PKT - Pakistan Standard Time
  • TFT - French Southern and Antarctic Time
  • TJT - Tajikistan Time
  • TMT - Turkmenistan Time
  • UZT - Uzbekistan Time
  • YEKT - Yekaterinburg Time
  • HMT - Heard and McDonald Islands Time
  • MT - Maldives Time
  • TST - Turkmenistan Standard Time
  • +05 -
  • FSAT - French Southern & Antarctic 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 Time Zone Geo Map
IST timezone map

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
  • Iran Standard Time - UTC +3:30

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

JST Time Zone Geo Map
JST timezone map

JST 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
  • YST - Yakutsk Standard Time
  • ETT - East Timor Time
  • +09 -
  • PT - Palau Time

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 Time Zone Geo Map
KST timezone map

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
  • YST - Yakutsk Standard Time
  • ETT - East Timor Time
  • +09 -
  • PT - Palau Time

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, 03 October 2021, 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, 03 April 2022, 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

Australian Central Standard Time

Offset: ACST is 9 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 ACST timezone is Adelaide from Australia with population about 1.225 million people. Other major cities in the area are Darwin, Adelaide Hills, Alice Springs, Palmerston

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

End: ACST ends annually on the same date and time. and clocks were set one hour forward on Sunday, 03 October 2021, at 2:00 (2:00 am) local time.

Start: ACST starts annually on the same date and time. and clocks are set one hour back on Sunday, 03 April 2022, at 3:00 (3:00 am) local time.

ACST Time Zone Geo Map
ACST timezone map

ACST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0930 - basic
  • +09:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0930 - sign character (+) followed by a four digit time providing hours (09) and minutes (30) of the offset. Indicates nine hour and thirty minutes time differences to the east of the zero meridian.
IANA/Olson: Reflects ACST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/Adelaide
  • Australia/Broken_Hill
  • Australia/Darwin
  • Australia/North
  • Australia/South
  • Australia/Yancowinna