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UTC
Universal Time Coordinated
GMT +0
EDT
Eastern Daylight Time
GMT -4
GMT
CDT/CST
Central Daylight Time
GMT -5
CST automatically adjusted to CDT time zone, that is in use
SGT
Singapore Time
GMT +8
BST
British Summer Time
GMT +1
Time Difference
Universal Time Coordinated is 4 hours ahead of Eastern Daylight Time and 0 hours ahead of Greenwich Mean Time and 5 hours ahead of Central Daylight Time and 8 hours behind Singapore Time and 1 hours behind British Summer Time and 5 hours and 30 minutes behind India Standard Time
3:00 pm15:00 in UTC is 11:00 am11:00 in EDT and is 3:00 pm15:00 in GMT and is 10:00 am10:00 in CDT and is 11:00 pm23:00 in SGT and is 4:00 pm16:00 in BST and is 8:30 pm20:30 in IST
UTC to EDT call time
Best time for a conference call or a meeting is between 12pm-6pm in UTC which corresponds to 8am-2pm in EDT
UTC to GMT call time
Best time for a conference call or a meeting is between 8am-6pm in UTC which corresponds to 8am-6pm in GMT
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 SGT call time
Best time for a conference call or a meeting is between 8am-10am in UTC which corresponds to 4pm-6pm in SGT
UTC to BST call time
Best time for a conference call or a meeting is between 8am-5pm in UTC which corresponds to 9am-6pm in BST
UTC to IST call time
Best time for a conference call or a meeting is between 8am-12:30pm in UTC which corresponds to 1:30pm-6pm in IST
3:00 pm15:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
11:00 am11:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
3:00 pm15:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
10:00 am10:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
11:00 pm23:00 Singapore Time (SGT). Offset UTC +8:00 hours
4:00 pm16:00 British Summer Time (BST). Offset UTC +1:00 hour
8:30 pm20:30 India Standard Time (IST). Offset UTC +5:30 hours
3:00 pm15:00 UTC / 11:00 am11:00 EDT / 3:00 pm15:00 GMT / 10:00 am10:00 CDT / 11:00 pm23:00 SGT / 4:00 pm16:00 BST / 8:30 pm20:30 IST
| UTC | EDT | GMT | CDT | SGT | BST | IST |
|---|---|---|---|---|---|---|
| 12am (midnight) | 8pm | 12am (midnight) | 7pm | 8am | 1am | 5:30 am |
| 1am | 9pm | 1am | 8pm | 9am | 2am | 6:30 am |
| 2am | 10pm | 2am | 9pm | 10am | 3am | 7:30 am |
| 3am | 11pm | 3am | 10pm | 11am | 4am | 8:30 am |
| 4am | 12am (midnight) | 4am | 11pm | 12pm (noon) | 5am | 9:30 am |
| 5am | 1am | 5am | 12am (midnight) | 1pm | 6am | 10:30 am |
| 6am | 2am | 6am | 1am | 2pm | 7am | 11:30 am |
| 7am | 3am | 7am | 2am | 3pm | 8am | 12:30 pm |
| 8am | 4am | 8am | 3am | 4pm | 9am | 1:30 pm |
| 9am | 5am | 9am | 4am | 5pm | 10am | 2:30 pm |
| 10am | 6am | 10am | 5am | 6pm | 11am | 3:30 pm |
| 11am | 7am | 11am | 6am | 7pm | 12pm (noon) | 4:30 pm |
| 12pm (noon) | 8am | 12pm (noon) | 7am | 8pm | 1pm | 5:30 pm |
| 1pm | 9am | 1pm | 8am | 9pm | 2pm | 6:30 pm |
| 2pm | 10am | 2pm | 9am | 10pm | 3pm | 7:30 pm |
| 3pm | 11am | 3pm | 10am | 11pm | 4pm | 8:30 pm |
| 4pm | 12pm (noon) | 4pm | 11am | 12am (midnight) | 5pm | 9:30 pm |
| 5pm | 1pm | 5pm | 12pm (noon) | 1am | 6pm | 10:30 pm |
| 6pm | 2pm | 6pm | 1pm | 2am | 7pm | 11:30 pm |
| 7pm | 3pm | 7pm | 2pm | 3am | 8pm | 12:30 am |
| 8pm | 4pm | 8pm | 3pm | 4am | 9pm | 1:30 am |
| 9pm | 5pm | 9pm | 4pm | 5am | 10pm | 2:30 am |
| 10pm | 6pm | 10pm | 5pm | 6am | 11pm | 3:30 am |
| 11pm | 7pm | 11pm | 6pm | 7am | 12am (midnight) | 4:30 am |
| 0:00 | 20:00 | 0:00 | 19:00 | 8:00 | 1:00 | 5:30 |
| 1:00 | 21:00 | 1:00 | 20:00 | 9:00 | 2:00 | 6:30 |
| 2:00 | 22:00 | 2:00 | 21:00 | 10:00 | 3:00 | 7:30 |
| 3:00 | 23:00 | 3:00 | 22:00 | 11:00 | 4:00 | 8:30 |
| 4:00 | 0:00 | 4:00 | 23:00 | 12:00 | 5:00 | 9:30 |
| 5:00 | 1:00 | 5:00 | 0:00 | 13:00 | 6:00 | 10:30 |
| 6:00 | 2:00 | 6:00 | 1:00 | 14:00 | 7:00 | 11:30 |
| 7:00 | 3:00 | 7:00 | 2:00 | 15:00 | 8:00 | 12:30 |
| 8:00 | 4:00 | 8:00 | 3:00 | 16:00 | 9:00 | 13:30 |
| 9:00 | 5:00 | 9:00 | 4:00 | 17:00 | 10:00 | 14:30 |
| 10:00 | 6:00 | 10:00 | 5:00 | 18:00 | 11:00 | 15:30 |
| 11:00 | 7:00 | 11:00 | 6:00 | 19:00 | 12:00 | 16:30 |
| 12:00 | 8:00 | 12:00 | 7:00 | 20:00 | 13:00 | 17:30 |
| 13:00 | 9:00 | 13:00 | 8:00 | 21:00 | 14:00 | 18:30 |
| 14:00 | 10:00 | 14:00 | 9:00 | 22:00 | 15:00 | 19:30 |
| 15:00 | 11:00 | 15:00 | 10:00 | 23:00 | 16:00 | 20:30 |
| 16:00 | 12:00 | 16:00 | 11:00 | 0:00 | 17:00 | 21:30 |
| 17:00 | 13:00 | 17:00 | 12:00 | 1:00 | 18:00 | 22:30 |
| 18:00 | 14:00 | 18:00 | 13:00 | 2:00 | 19:00 | 23:30 |
| 19:00 | 15:00 | 19:00 | 14:00 | 3:00 | 20:00 | 0:30 |
| 20:00 | 16:00 | 20:00 | 15:00 | 4:00 | 21:00 | 1:30 |
| 21:00 | 17:00 | 21:00 | 16:00 | 5:00 | 22:00 | 2:30 |
| 22:00 | 18:00 | 22:00 | 17:00 | 6:00 | 23:00 | 3:30 |
| 23:00 | 19:00 | 23:00 | 18:00 | 7:00 | 0:00 | 4:30 |
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
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
French: HAE - Heure Avancée de l'Est
Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste
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 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. Daylight saving starts annually the on second Sunday of March
End: Eastern Daylight Time (EDT) ends 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 local standard time instead. Daylight saving ends annually the on first Sunday of November
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
- HLV - Hora Legal de Venezuela
- PYT - Paraguay Time
- Q - Quebec Time Zone
- VET - Venezuelan Standard Time
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 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 - UTC +1
- GMT+03:00 - UTC +3
- GMT+06:00 - UTC +6
- GMT+11:00 - UTC +11
- GMT-01:00 - UTC -1
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
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
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- -06 - basic short
- -0600 - basic
- -06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- -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.
Military/NATO: Used by the U.S. military, Chinese military and others
- Sierra - Military abbreviation for CST
- S - short form of 'Sierra'
IANA/Olson: Reflects CST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- America/Bahia_Banderas
- America/Belize
- America/Chicago
- America/Chihuahua
- 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/Ojinaga
- 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
CST Abbreviation: Several time zones share CST abbreviation and it could refer to these time zones
- Central Standard Time - UTC -6
- China Standard Time - UTC +8
- Cuba Standard Time - UTC -5
- Colombia Standard Time - UTC -5
Time zones with the GMT -6 offset:
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
Singapore Time
Offset: SGT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia
SGT 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 SGT
- H - short form of 'Hotel'
SGT Abbreviation: Several time zones share SGT abbreviation and it could refer to these time zones
- Singapore Time - UTC +8
- South Georgia Time - UTC -2
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
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 on Sunday, March 31, 2024 at 1:00 am local time and clocks were set one hour forward to Sunday, March 31, 2024, 2:00 am. Daylight saving starts annually the on last Sunday of March
End: British Summer Time (BST) ends on Sunday, October 27, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, October 27, 2024, 1:00 am local standard time instead. Daylight saving ends annually the on last Sunday of October
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
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 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
EST to IST GMT to EST PST to EST EST to GMT PST to GMT
