UTC
Universal Time Coordinated
GMT +0
AEST (Australian Eastern Standard Time)
GMT +10
BST (British Summer Time)
GMT +1
EDT (Eastern Daylight Time)
GMT -4
IST (India Standard Time)
GMT +5:30
CEST (Central European Summer Time)
GMT +2
PDT (Pacific Daylight Time)
GMT -7
NZST (New Zealand Standard Time)
GMT +12

Time Difference

Universal Time Coordinated is 10 hours behind of AEST (Australian Eastern Standard Time) and 1 hours behind of BST (British Summer Time) and 4 hours ahead of EDT (Eastern Daylight Time) and 5 hours and 30 minutes behind of IST (India Standard Time) and 8 hours behind of and 2 hours behind of CEST (Central European Summer Time) and 7 hours ahead of PDT (Pacific Daylight Time) and 12 hours behind of NZST (New Zealand Standard Time)
So 11:00 pm23:00 in UTC is 9:00 am09:00 in Sydney, Australia and is 12:00 am00:00 in London, United Kingdom and is 7:00 pm19:00 in New York City, NY, USA and is 4:30 am04:30 in Mumbai, India and is 7:00 am07:00 in Singapore, Singapore and is 1:00 am01:00 in Munich, Germany and is 4:00 pm16:00 in San Francisco, CA, USA and is 11:00 am11:00 in Auckland, New Zealand

11:00 pm23:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
9:00 am09:00 AEST (Australian Eastern Standard Time) (Sydney, Australia). Offset UTC +10:00 hours
12:00 am00:00 BST (British Summer Time) (London, United Kingdom). Offset UTC +1:00 hour
7:00 pm19:00 EDT (Eastern Daylight Time) (New York City, NY, USA). Offset UTC -4:00 hours
4:30 am04:30 IST (India Standard Time) (Mumbai, India). Offset UTC +5:30 hours
7:00 am07:00 (Singapore, Singapore). Offset UTC +8:00 hours
1:00 am01:00 CEST (Central European Summer Time) (Munich, Germany). Offset UTC +2:00 hours
4:00 pm16:00 PDT (Pacific Daylight Time) (San Francisco, CA, USA). Offset UTC -7:00 hours
11:00 am11:00 NZST (New Zealand Standard Time) (Auckland, New Zealand). Offset UTC +12:00 hours

11:00 pm23:00 UTC / 9:00 am09:00 Sydney, Australia / 12:00 am00:00 London, United Kingdom / 7:00 pm19:00 New York City, NY, USA / 4:30 am04:30 Mumbai, India / 7:00 am07:00 Singapore, Singapore / 1:00 am01:00 Munich, Germany / 4:00 pm16:00 San Francisco, CA, USA / 11:00 am11:00 Auckland, New Zealand

UTC Sydney, Australia London, United Kingdom New York City, NY, USA Mumbai, India Singapore, Singapore Munich, Germany San Francisco, CA, USA Auckland, New Zealand
12am (midnight) 10am 1am 8pm 5:30 am 8am 2am 5pm 12pm (noon)
1am 11am 2am 9pm 6:30 am 9am 3am 6pm 1pm
2am 12pm (noon) 3am 10pm 7:30 am 10am 4am 7pm 2pm
3am 1pm 4am 11pm 8:30 am 11am 5am 8pm 3pm
4am 2pm 5am 12am (midnight) 9:30 am 12pm (noon) 6am 9pm 4pm
5am 3pm 6am 1am 10:30 am 1pm 7am 10pm 5pm
6am 4pm 7am 2am 11:30 am 2pm 8am 11pm 6pm
7am 5pm 8am 3am 12:30 pm 3pm 9am 12am (midnight) 7pm
8am 6pm 9am 4am 1:30 pm 4pm 10am 1am 8pm
9am 7pm 10am 5am 2:30 pm 5pm 11am 2am 9pm
10am 8pm 11am 6am 3:30 pm 6pm 12pm (noon) 3am 10pm
11am 9pm 12pm (noon) 7am 4:30 pm 7pm 1pm 4am 11pm
12pm (noon) 10pm 1pm 8am 5:30 pm 8pm 2pm 5am 12am (midnight)
1pm 11pm 2pm 9am 6:30 pm 9pm 3pm 6am 1am
2pm 12am (midnight) 3pm 10am 7:30 pm 10pm 4pm 7am 2am
3pm 1am 4pm 11am 8:30 pm 11pm 5pm 8am 3am
4pm 2am 5pm 12pm (noon) 9:30 pm 12am (midnight) 6pm 9am 4am
5pm 3am 6pm 1pm 10:30 pm 1am 7pm 10am 5am
6pm 4am 7pm 2pm 11:30 pm 2am 8pm 11am 6am
7pm 5am 8pm 3pm 12:30 am 3am 9pm 12pm (noon) 7am
8pm 6am 9pm 4pm 1:30 am 4am 10pm 1pm 8am
9pm 7am 10pm 5pm 2:30 am 5am 11pm 2pm 9am
10pm 8am 11pm 6pm 3:30 am 6am 12am (midnight) 3pm 10am
11pm 9am 12am (midnight) 7pm 4:30 am 7am 1am 4pm 11am
0:00 10:00 1:00 20:00 5:30 8:00 2:00 17:00 12:00
1:00 11:00 2:00 21:00 6:30 9:00 3:00 18:00 13:00
2:00 12:00 3:00 22:00 7:30 10:00 4:00 19:00 14:00
3:00 13:00 4:00 23:00 8:30 11:00 5:00 20:00 15:00
4:00 14:00 5:00 0:00 9:30 12:00 6:00 21:00 16:00
5:00 15:00 6:00 1:00 10:30 13:00 7:00 22:00 17:00
6:00 16:00 7:00 2:00 11:30 14:00 8:00 23:00 18:00
7:00 17:00 8:00 3:00 12:30 15:00 9:00 0:00 19:00
8:00 18:00 9:00 4:00 13:30 16:00 10:00 1:00 20:00
9:00 19:00 10:00 5:00 14:30 17:00 11:00 2:00 21:00
10:00 20:00 11:00 6:00 15:30 18:00 12:00 3:00 22:00
11:00 21:00 12:00 7:00 16:30 19:00 13:00 4:00 23:00
12:00 22:00 13:00 8:00 17:30 20:00 14:00 5:00 0:00
13:00 23:00 14:00 9:00 18:30 21:00 15:00 6:00 1:00
14:00 0:00 15:00 10:00 19:30 22:00 16:00 7:00 2:00
15:00 1:00 16:00 11:00 20:30 23:00 17:00 8:00 3:00
16:00 2:00 17:00 12:00 21:30 0:00 18:00 9:00 4:00
17:00 3:00 18:00 13:00 22:30 1:00 19:00 10:00 5:00
18:00 4:00 19:00 14:00 23:30 2:00 20:00 11:00 6:00
19:00 5:00 20:00 15:00 0:30 3:00 21:00 12:00 7:00
20:00 6:00 21:00 16:00 1:30 4:00 22:00 13:00 8:00
21:00 7:00 22:00 17:00 2:30 5:00 23:00 14:00 9:00
22:00 8:00 23:00 18:00 3:30 6:00 0:00 15:00 10:00
23:00 9:00 0:00 19:00 4:30 7:00 1:00 16:00 11:00

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
  • +00 -


AEST (Australian Eastern Standard Time)

Offset: AEST is 10 hours 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 AEST timezone is Sydney from Australia with population about 4.627 million people. Other major cities in the area are Melbourne, Brisbane, Gold Coast, Canberra

Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Australian Eastern Daylight Time (AEDT).

Start: AEST started and clocks were set one hour back on Sunday, 04 April 2021, at 3:00 (3:00 am) local time.

End: AEST ends and clocks are set one hour forward on Sunday, 03 October 2021, at 2:00 (2:00 am) local time.

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

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +10 - basic short
  • +1000 - basic
  • +10:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1000 - sign character (+) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates ten 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
  • Kilo - Military abbreviation for AEST
  • K - short form of 'Kilo'

IANA/Olson: Reflects AEST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/ACT
  • Australia/Brisbane
  • Australia/Canberra
  • Australia/Currie
  • Australia/Hobart
  • Australia/Lindeman
  • Australia/Melbourne
  • Australia/NSW
  • Australia/Queensland
  • Australia/Sydney
  • Australia/Tasmania
  • Australia/Victoria

Time zones with the GMT +10 offset:

  • AEST - Australian Eastern Standard Time
  • CHUT - Chuuk Time
  • ChST - Chamorro Standard Time
  • K - Kilo Time Zone
  • KDT - Korea Daylight Time
  • PGT - Papua New Guinea Time
  • VLAT - Vladivostok Time
  • YAKST - Yakutsk Summer Time
  • YAPT - Yap Time
  • GMT - GMT+10:00
  • +10 -


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) started 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 and clocks are set one hour back on Sunday, 31 October 2021, 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
  • GMT - GMT
  • +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) started 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 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

New York City, NY, USA Time Zone Geo Map
New York City, NY, USA timezone map
New York City, NY, 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 -


IST (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

Mumbai, India Time Zone Geo Map
Mumbai, India timezone map
Mumbai, India 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


Singapore, Singapore

Offset: +08 is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries: It is used in following countries: Antarctica, Brunei, Mongolia, Malaysia, Russia, Singapore

Principal Cities: The largest city in the +08 timezone is Singapore from Singapore with population about 3.548 million people. Other major cities in the area are Kota Bharu, Kuala Lumpur, Klang, Ulaanbaatar

Daylight Saving: (+08) is not adjusted for daylight saving therefore +08 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, remains the same

Singapore, Singapore 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 +08
  • H - short form of 'Hotel'

IANA/Olson: Reflects +08 time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Antarctica/Casey
  • Asia/Brunei
  • Asia/Choibalsan
  • Asia/Irkutsk
  • Asia/Kuala_Lumpur
  • Asia/Kuching
  • Asia/Singapore
  • Asia/Ulaanbaatar
  • Asia/Ulan_Bator
  • Etc/GMT-8
  • Singapore

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
  • GMT - GMT+08:00
  • +08 -


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, 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) started 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 and clocks are set one hour back on Sunday, 31 October 2021, at 3:00 (3:00 am) local time.

German: MESZ - Mitteleuropäische Sommerzeit

Munich, Germany Time Zone Geo Map
Munich, Germany timezone map
Munich, 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


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) started 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 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

San Francisco, CA, USA Time Zone Geo Map
San Francisco, CA, USA timezone map
San Francisco, CA, 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/Ensenada
  • America/Los_Angeles
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • Canada/Pacific
  • 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


NZST (New Zealand Standard Time)

Offset: NZST is 12 hours ahead Greenwich Mean Time (GMT) and is used in Pacific

Countries: It is used in following countries: Antarctica, New Zealand

Principal Cities: The largest city in the NZST timezone is Auckland from New Zealand with population about 1.535 million people. Other major cities in the area are Wellington, Christchurch, Hamilton, Tauranga

Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe New Zealand Daylight Time (NZDT).

Start: NZST started and clocks were set one hour back on Sunday, 04 April 2021, at 3:00 (3:00 am) local time.

End: NZST ends and clocks are set one hour forward on Sunday, 26 September 2021, at 2:00 (2:00 am) local time.

Auckland, New Zealand Time Zone Geo Map
Auckland, New Zealand timezone map
Auckland, New Zealand representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +12 - basic short
  • +1200 - basic
  • +12:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1200 - sign character (+) followed by a four digit time providing hours (12) and minutes (00) of the offset. Indicates twelve 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
  • Mike - Military abbreviation for NZST
  • M - short form of 'Mike'

IANA/Olson: Reflects NZST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Antarctica/McMurdo
  • Antarctica/South_Pole
  • NZ
  • Pacific/Auckland

Time zones with the GMT +12 offset:

  • ANAST - Anadyr Summer Time
  • ANAT - Anadyr Time
  • FJT - Fiji Time
  • GILT - Gilbert Island Time
  • M - Mike Time Zone
  • MAGST - Magadan Summer Time
  • MAGT - Magadan Time
  • MHT - Marshall Islands Time
  • NRT - Nauru Time
  • NZST - New Zealand Standard Time
  • PETST - Kamchatka Summer Time
  • TVT - Tuvalu Time
  • WFT - Wallis and Futuna Time
  • +12 -