UTC to AEST to WIB to GST to CET to EST to CST to PST
Time Difference
Universal Time Coordinated is 10 hours behind Australian Eastern Standard Time and 7 hours behind Western Indonesian Time and 4 hours behind Gulf Standard Time and 2 hours behind Central European Summer Time and 4 hours ahead of Eastern Daylight Time and 5 hours ahead of Central Daylight Time and 7 hours ahead of Pacific Daylight Time
9:00 pm21:00 in UTC is 7:00 am07:00 in AEST and is 4:00 am04:00 in WIB and is 1:00 am01:00 in GST and is 11:00 pm23:00 in CEST and is 5:00 pm17:00 in EDT and is 4:00 pm16:00 in CDT and is 2:00 pm14:00 in PDT
UTC to AEST call time
Best time for a conference call or a meeting is between 8am-10am in UTC which corresponds to 6pm-8pm in AEST
UTC to WIB call time
Best time for a conference call or a meeting is between 8am-11am in UTC which corresponds to 3pm-6pm in WIB
UTC to GST call time
Best time for a conference call or a meeting is between 8am-2pm in UTC which corresponds to 12pm-6pm in GST
UTC to CET call time
Best time for a conference call or a meeting is between 8am-5pm in UTC which corresponds to 9am-6pm in CET
UTC to EST call time
Best time for a conference call or a meeting is between 1pm-6pm in UTC which corresponds to 8am-1pm in EST
UTC to CST call time
Best time for a conference call or a meeting is between 2pm-6pm in UTC which corresponds to 8am-12pm in CST
UTC to PST call time
Best time for a conference call or a meeting is between 4pm-6pm in UTC which corresponds to 8am-10am in PST
9:00 pm21:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
7:00 am07:00 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
4:00 am04:00 Western Indonesian Time (WIB). Offset UTC +7:00 hours
1:00 am01:00 Gulf Standard Time (GST). Offset UTC +4:00 hours
11:00 pm23:00 Central European Summer Time (CEST). Offset UTC +2:00 hours
5:00 pm17:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
4:00 pm16:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
2:00 pm14:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
9:00 pm21:00 UTC / 7:00 am07:00 AEST / 4:00 am04:00 WIB / 1:00 am01:00 GST / 11:00 pm23:00 CEST / 5:00 pm17:00 EDT / 4:00 pm16:00 CDT / 2:00 pm14:00 PDT
| UTC | AEST | WIB | GST | CEST | EDT | CDT | PDT |
|---|---|---|---|---|---|---|---|
| 12am (midnight) | 10am | 7am | 4am | 2am | 8pm | 7pm | 5pm |
| 1am | 11am | 8am | 5am | 3am | 9pm | 8pm | 6pm |
| 2am | 12pm (noon) | 9am | 6am | 4am | 10pm | 9pm | 7pm |
| 3am | 1pm | 10am | 7am | 5am | 11pm | 10pm | 8pm |
| 4am | 2pm | 11am | 8am | 6am | 12am (midnight) | 11pm | 9pm |
| 5am | 3pm | 12pm (noon) | 9am | 7am | 1am | 12am (midnight) | 10pm |
| 6am | 4pm | 1pm | 10am | 8am | 2am | 1am | 11pm |
| 7am | 5pm | 2pm | 11am | 9am | 3am | 2am | 12am (midnight) |
| 8am | 6pm | 3pm | 12pm (noon) | 10am | 4am | 3am | 1am |
| 9am | 7pm | 4pm | 1pm | 11am | 5am | 4am | 2am |
| 10am | 8pm | 5pm | 2pm | 12pm (noon) | 6am | 5am | 3am |
| 11am | 9pm | 6pm | 3pm | 1pm | 7am | 6am | 4am |
| 12pm (noon) | 10pm | 7pm | 4pm | 2pm | 8am | 7am | 5am |
| 1pm | 11pm | 8pm | 5pm | 3pm | 9am | 8am | 6am |
| 2pm | 12am (midnight) | 9pm | 6pm | 4pm | 10am | 9am | 7am |
| 3pm | 1am | 10pm | 7pm | 5pm | 11am | 10am | 8am |
| 4pm | 2am | 11pm | 8pm | 6pm | 12pm (noon) | 11am | 9am |
| 5pm | 3am | 12am (midnight) | 9pm | 7pm | 1pm | 12pm (noon) | 10am |
| 6pm | 4am | 1am | 10pm | 8pm | 2pm | 1pm | 11am |
| 7pm | 5am | 2am | 11pm | 9pm | 3pm | 2pm | 12pm (noon) |
| 8pm | 6am | 3am | 12am (midnight) | 10pm | 4pm | 3pm | 1pm |
| 9pm | 7am | 4am | 1am | 11pm | 5pm | 4pm | 2pm |
| 10pm | 8am | 5am | 2am | 12am (midnight) | 6pm | 5pm | 3pm |
| 11pm | 9am | 6am | 3am | 1am | 7pm | 6pm | 4pm |
| 0:00 | 10:00 | 7:00 | 4:00 | 2:00 | 20:00 | 19:00 | 17:00 |
| 1:00 | 11:00 | 8:00 | 5:00 | 3:00 | 21:00 | 20:00 | 18:00 |
| 2:00 | 12:00 | 9:00 | 6:00 | 4:00 | 22:00 | 21:00 | 19:00 |
| 3:00 | 13:00 | 10:00 | 7:00 | 5:00 | 23:00 | 22:00 | 20:00 |
| 4:00 | 14:00 | 11:00 | 8:00 | 6:00 | 0:00 | 23:00 | 21:00 |
| 5:00 | 15:00 | 12:00 | 9:00 | 7:00 | 1:00 | 0:00 | 22:00 |
| 6:00 | 16:00 | 13:00 | 10:00 | 8:00 | 2:00 | 1:00 | 23:00 |
| 7:00 | 17:00 | 14:00 | 11:00 | 9:00 | 3:00 | 2:00 | 0:00 |
| 8:00 | 18:00 | 15:00 | 12:00 | 10:00 | 4:00 | 3:00 | 1:00 |
| 9:00 | 19:00 | 16:00 | 13:00 | 11:00 | 5:00 | 4:00 | 2:00 |
| 10:00 | 20:00 | 17:00 | 14:00 | 12:00 | 6:00 | 5:00 | 3:00 |
| 11:00 | 21:00 | 18:00 | 15:00 | 13:00 | 7:00 | 6:00 | 4:00 |
| 12:00 | 22:00 | 19:00 | 16:00 | 14:00 | 8:00 | 7:00 | 5:00 |
| 13:00 | 23:00 | 20:00 | 17:00 | 15:00 | 9:00 | 8:00 | 6:00 |
| 14:00 | 0:00 | 21:00 | 18:00 | 16:00 | 10:00 | 9:00 | 7:00 |
| 15:00 | 1:00 | 22:00 | 19:00 | 17:00 | 11:00 | 10:00 | 8:00 |
| 16:00 | 2:00 | 23:00 | 20:00 | 18:00 | 12:00 | 11:00 | 9:00 |
| 17:00 | 3:00 | 0:00 | 21:00 | 19:00 | 13:00 | 12:00 | 10:00 |
| 18:00 | 4:00 | 1:00 | 22:00 | 20:00 | 14:00 | 13:00 | 11:00 |
| 19:00 | 5:00 | 2:00 | 23:00 | 21:00 | 15:00 | 14:00 | 12:00 |
| 20:00 | 6:00 | 3:00 | 0:00 | 22:00 | 16:00 | 15:00 | 13:00 |
| 21:00 | 7:00 | 4:00 | 1:00 | 23:00 | 17:00 | 16:00 | 14:00 |
| 22:00 | 8:00 | 5:00 | 2:00 | 0:00 | 18:00 | 17:00 | 15:00 |
| 23:00 | 9:00 | 6:00 | 3:00 | 1:00 | 19:00 | 18:00 | 16:00 |
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
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +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.
- Zulu - Military abbreviation for UTC
- Z - short form of 'Zulu'
- Etc/UCT
- Etc/UTC
- Etc/Universal
- Etc/Zulu
- UCT
- UTC
- Universal
- Zulu
- 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
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: Australian Eastern Standard Time (AEST) started on Sunday, April 7, 2024 at 3:00 am local time and clocks were set one hour back to Sunday, April 7, 2024, 2:00 am. Standard time starts annually the on first Sunday of April.
End: Australian Eastern Standard Time (AEST) ends on Sunday, October 6, 2024 at 2:00 am local time and clocks are set one hour forward to Sunday, October 6, 2024, 3:00 am local daylight time instead. Standard time starts annually the on first Sunday of October.
Australian Eastern Standard Time (AEST) is used in Queensland, Victoria, Tasmania, New South Wales (except Broken Hill), Australian Capital Territory and in folling major cities Brisbane, Sydney, Melbourne, Hobart, Canberra
Only part of Australia observe daylight saving. It is used in New South Wales, Victoria, South Australia, Tasmania, and the Australian Capital Territory. Daylight saving is not observed in Queensland, Western Australia or the Northern Territory.
AEST representations, usage and related time zones
- +10 - basic short
- +1000 - basic
- +10:00 - extended
- +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.
- Kilo - Military abbreviation for AEST
- K - short form of 'Kilo'
- Antarctica/Macquarie
- Australia/ACT
- Australia/Brisbane
- Australia/Canberra
- Australia/Currie
- Australia/Hobart
- Australia/Lindeman
- Australia/Melbourne
- Australia/NSW
- Australia/Queensland
- Australia/Sydney
- Australia/Tasmania
- Australia/Victoria
- 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
Western Indonesian Time
Offset: WIB is 7 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: Indonesia
Principal Cities: The largest city in the WIB timezone is Jakarta from Indonesia with population about 8.54 million people. Other major cities in the area are Surabaya, Medan, Bandung, Bekasi
Daylight Saving: Western Indonesian Time (WIB) is not adjusted for daylight saving therefore WIB 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, Western Indonesian Time remains the same
WIB representations, usage and related time zones
- +07 - basic short
- +0700 - basic
- +07:00 - extended
- +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 east of the zero meridian.
- Golf - Military abbreviation for WIB
- G - short form of 'Golf'
- Asia/Jakarta
- Asia/Pontianak
- CXT - Christmas Island Time
- DAVT - Davis Time
- G - Golf Time Zone
- HOVT - Hovd Time
- ICT - Indochina Time
- KRAT - Krasnoyarsk Time
- NOVST - Novosibirsk Summer Time
- NOVT - Novosibirsk Time
- OMSST - Omsk Summer Time
- WIB - Western Indonesian Time
Gulf Standard Time
Offset: GST is 4 hours ahead Greenwich Mean Time (GMT) and is used in Asia
GST representations, usage and related time zones
- +04 - basic short
- +0400 - basic
- +04:00 - extended
- +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 east of the zero meridian.
- Delta - Military abbreviation for GST
- D - short form of 'Delta'
- KUYT - Kuybyshev Time
- MSD - Moscow Daylight Time
- SAMT - Samara Time
- AMT - Armenia Time
- AZT - Azerbaijan Time
- D - Delta Time Zone
- GET - Georgia Standard Time
- GST - Gulf Standard Time
- MUT - Mauritius Time
- RET - Reunion Time
- SCT - Seychelles Time
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, North 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
German: MEZ - Mitteleuropäische Zeit
Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Central European Summer Time (CEST).
End: Central European Time (CET) has ended on Sunday, March 31, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 31, 2024, 3:00 am local daylight time instead. Standard time ends annually the on last Sunday of March.
Start: Central European Time (CET) starts on Sunday, October 27, 2024 at 3:00 am local time and clocks are set one hour back to Sunday, October 27, 2024, 2:00 am. Standard time starts annually the on last Sunday of October.
CET representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +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.
- Alpha - Military abbreviation for CET
- A - short form of 'Alpha'
- 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
- 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
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
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Eastern Daylight Time (EDT).
End: Eastern Standard Time (EST) has ended on Sunday, March 10, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 10, 2024, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Eastern Standard Time (EST) starts on Sunday, November 3, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, November 3, 2024, 1:00 am. Standard time starts annually the on first Sunday of November.
EST representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -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.
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
- 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
- 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
Central Standard Time
Offset: CST is 6 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Belize, Canada, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua, El Salvador, United States
Principal Cities: The largest city in the CST timezone is Mexico City from Mexico with population about 12.294 million people. Other major cities in the area are Chicago, Houston, Iztapalapa, Ecatepec
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro
Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Central Daylight Time (CDT).
End: Central Standard Time (CST) has ended on Sunday, March 10, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 10, 2024, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Central Standard Time (CST) starts on Sunday, November 3, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, November 3, 2024, 1:00 am. Standard time starts annually the on first Sunday of November.
CST representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates six hour and zero minutes time differences to the west of the zero meridian.
- Sierra - Military abbreviation for CST
- S - short form of 'Sierra'
- America/Bahia_Banderas
- America/Belize
- America/Chicago
- America/Costa_Rica
- America/El_Salvador
- America/Guatemala
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Managua
- 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/Regina
- America/Resolute
- America/Swift_Current
- America/Tegucigalpa
- America/Winnipeg
- CST6CDT
- Canada/Central
- Canada/Saskatchewan
- Mexico/General
- US/Central
- US/Indiana-Starke
- Central Standard Time - UTC -6
- China Standard Time - UTC +8
- Cuba Standard Time - UTC -5
- Colombia Standard Time - UTC -5
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
Pacific Standard Time
Offset: PST is 8 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 PST timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose
French: HNP - Heure Normale du Pacifique
Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste
Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Pacific Daylight Time (PDT).
End: Pacific Standard Time (PST) has ended on Sunday, March 10, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 10, 2024, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Pacific Standard Time (PST) starts on Sunday, November 3, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, November 3, 2024, 1:00 am. Standard time starts annually the on first Sunday of November.
PST representations, usage and related time zones
- -08 - basic short
- -0800 - basic
- -08:00 - extended
- -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates eight hour and zero minutes time differences to the west of the zero meridian.
- Uniform - Military abbreviation for PST
- U - short form of 'Uniform'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- Pacific Standard Time - UTC -8
- Pitcairn Standard Time - UTC -8
- Paraguay Summer Time - UTC -3
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone