PST to MST to CST to EST to GMT to UTC to CET to IST
Time Difference
Pacific Daylight Time is 1 hours behind Mountain Daylight Time and 2 hours behind Central Daylight Time and 3 hours behind Eastern Daylight Time and 7 hours behind Greenwich Mean Time and 7 hours behind Universal Time Coordinated and 9 hours behind Central European Summer Time and 12 hours and 30 minutes behind India Standard Time
7:30 am07:30 in PDT is 8:30 am08:30 in MDT and is 9:30 am09:30 in CDT and is 10:30 am10:30 in EDT and is 2:30 pm14:30 in GMT and is 2:30 pm14:30 in UTC and is 4:30 pm16:30 in CEST and is 8:00 pm20:00 in IST
PST to MST call time
Best time for a conference call or a meeting is between 8am-5pm in PST which corresponds to 9am-6pm in MST
PST to CST call time
Best time for a conference call or a meeting is between 8am-4pm in PST which corresponds to 10am-6pm in CST
PST to EST call time
Best time for a conference call or a meeting is between 8am-3pm in PST which corresponds to 11am-6pm in EST
PST to GMT call time
Best time for a conference call or a meeting is between 8am-10am in PST which corresponds to 4pm-6pm in GMT
PST to UTC call time
Best time for a conference call or a meeting is between 8am-10am in PST which corresponds to 4pm-6pm in UTC
PST to CET call time
Best time for a conference call or a meeting is between 8am-10am in PST which corresponds to 5pm-7pm in CET
PST to IST call time
Best time for a conference call or a meeting is between 6am-8am in PST which corresponds to 7:30pm-9:30pm in IST
7:30 am07:30 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
8:30 am08:30 Mountain Daylight Time (MDT). Offset UTC -6:00 hours
9:30 am09:30 Central Daylight Time (CDT). Offset UTC -5:00 hours
10:30 am10:30 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
2:30 pm14:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
2:30 pm14:30 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
4:30 pm16:30 Central European Summer Time (CEST). Offset UTC +2:00 hours
8:00 pm20:00 India Standard Time (IST). Offset UTC +5:30 hours
7:30 am07:30 PDT / 8:30 am08:30 MDT / 9:30 am09:30 CDT / 10:30 am10:30 EDT / 2:30 pm14:30 GMT / 2:30 pm14:30 UTC / 4:30 pm16:30 CEST / 8:00 pm20:00 IST
| PDT | MDT | CDT | EDT | GMT | UTC | CEST | IST |
|---|---|---|---|---|---|---|---|
| 12am (midnight) | 1am | 2am | 3am | 7am | 7am | 9am | 12:30 pm |
| 1am | 2am | 3am | 4am | 8am | 8am | 10am | 1:30 pm |
| 2am | 3am | 4am | 5am | 9am | 9am | 11am | 2:30 pm |
| 3am | 4am | 5am | 6am | 10am | 10am | 12pm (noon) | 3:30 pm |
| 4am | 5am | 6am | 7am | 11am | 11am | 1pm | 4:30 pm |
| 5am | 6am | 7am | 8am | 12pm (noon) | 12pm (noon) | 2pm | 5:30 pm |
| 6am | 7am | 8am | 9am | 1pm | 1pm | 3pm | 6:30 pm |
| 7am | 8am | 9am | 10am | 2pm | 2pm | 4pm | 7:30 pm |
| 8am | 9am | 10am | 11am | 3pm | 3pm | 5pm | 8:30 pm |
| 9am | 10am | 11am | 12pm (noon) | 4pm | 4pm | 6pm | 9:30 pm |
| 10am | 11am | 12pm (noon) | 1pm | 5pm | 5pm | 7pm | 10:30 pm |
| 11am | 12pm (noon) | 1pm | 2pm | 6pm | 6pm | 8pm | 11:30 pm |
| 12pm (noon) | 1pm | 2pm | 3pm | 7pm | 7pm | 9pm | 12:30 am |
| 1pm | 2pm | 3pm | 4pm | 8pm | 8pm | 10pm | 1:30 am |
| 2pm | 3pm | 4pm | 5pm | 9pm | 9pm | 11pm | 2:30 am |
| 3pm | 4pm | 5pm | 6pm | 10pm | 10pm | 12am (midnight) | 3:30 am |
| 4pm | 5pm | 6pm | 7pm | 11pm | 11pm | 1am | 4:30 am |
| 5pm | 6pm | 7pm | 8pm | 12am (midnight) | 12am (midnight) | 2am | 5:30 am |
| 6pm | 7pm | 8pm | 9pm | 1am | 1am | 3am | 6:30 am |
| 7pm | 8pm | 9pm | 10pm | 2am | 2am | 4am | 7:30 am |
| 8pm | 9pm | 10pm | 11pm | 3am | 3am | 5am | 8:30 am |
| 9pm | 10pm | 11pm | 12am (midnight) | 4am | 4am | 6am | 9:30 am |
| 10pm | 11pm | 12am (midnight) | 1am | 5am | 5am | 7am | 10:30 am |
| 11pm | 12am (midnight) | 1am | 2am | 6am | 6am | 8am | 11:30 am |
| 0:00 | 1:00 | 2:00 | 3:00 | 7:00 | 7:00 | 9:00 | 12:30 |
| 1:00 | 2:00 | 3:00 | 4:00 | 8:00 | 8:00 | 10:00 | 13:30 |
| 2:00 | 3:00 | 4:00 | 5:00 | 9:00 | 9:00 | 11:00 | 14:30 |
| 3:00 | 4:00 | 5:00 | 6:00 | 10:00 | 10:00 | 12:00 | 15:30 |
| 4:00 | 5:00 | 6:00 | 7:00 | 11:00 | 11:00 | 13:00 | 16:30 |
| 5:00 | 6:00 | 7:00 | 8:00 | 12:00 | 12:00 | 14:00 | 17:30 |
| 6:00 | 7:00 | 8:00 | 9:00 | 13:00 | 13:00 | 15:00 | 18:30 |
| 7:00 | 8:00 | 9:00 | 10:00 | 14:00 | 14:00 | 16:00 | 19:30 |
| 8:00 | 9:00 | 10:00 | 11:00 | 15:00 | 15:00 | 17:00 | 20:30 |
| 9:00 | 10:00 | 11:00 | 12:00 | 16:00 | 16:00 | 18:00 | 21:30 |
| 10:00 | 11:00 | 12:00 | 13:00 | 17:00 | 17:00 | 19:00 | 22:30 |
| 11:00 | 12:00 | 13:00 | 14:00 | 18:00 | 18:00 | 20:00 | 23:30 |
| 12:00 | 13:00 | 14:00 | 15:00 | 19:00 | 19:00 | 21:00 | 0:30 |
| 13:00 | 14:00 | 15:00 | 16:00 | 20:00 | 20:00 | 22:00 | 1:30 |
| 14:00 | 15:00 | 16:00 | 17:00 | 21:00 | 21:00 | 23:00 | 2:30 |
| 15:00 | 16:00 | 17:00 | 18:00 | 22:00 | 22:00 | 0:00 | 3:30 |
| 16:00 | 17:00 | 18:00 | 19:00 | 23:00 | 23:00 | 1:00 | 4:30 |
| 17:00 | 18:00 | 19:00 | 20:00 | 0:00 | 0:00 | 2:00 | 5:30 |
| 18:00 | 19:00 | 20:00 | 21:00 | 1:00 | 1:00 | 3:00 | 6:30 |
| 19:00 | 20:00 | 21:00 | 22:00 | 2:00 | 2:00 | 4:00 | 7:30 |
| 20:00 | 21:00 | 22:00 | 23:00 | 3:00 | 3:00 | 5:00 | 8:30 |
| 21:00 | 22:00 | 23:00 | 0:00 | 4:00 | 4:00 | 6:00 | 9:30 |
| 22:00 | 23:00 | 0:00 | 1:00 | 5:00 | 5:00 | 7:00 | 10:30 |
| 23:00 | 0:00 | 1:00 | 2:00 | 6:00 | 6:00 | 8:00 | 11:30 |
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 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 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 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 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
- Peru Standard Time - UTC -5
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone
Mountain Standard Time
Offset: MST 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 MST timezone is Phoenix from USA with population about 1.446 million people. Other major cities in the area are Calgary, Edmonton, El Paso, Denver
French: HNR - Heure Normale des Rocheuses
Spanish: MT - Zona Pacífico
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 Mountain Daylight Time (MDT).
End: Mountain Standard Time (MST) has ended on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Mountain Standard Time (MST) starts on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually the on first Sunday of November.
MST 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 west of the zero meridian.
- Tango - Military abbreviation for MST
- T - short form of 'Tango'
- America/Boise
- America/Cambridge_Bay
- America/Ciudad_Juarez
- America/Creston
- America/Dawson
- America/Dawson_Creek
- America/Denver
- America/Edmonton
- America/Fort_Nelson
- America/Hermosillo
- America/Inuvik
- America/Mazatlan
- America/Phoenix
- America/Shiprock
- America/Whitehorse
- America/Yellowknife
- Canada/Mountain
- Canada/Yukon
- MST
- MST7MDT
- Mexico/BajaSur
- Navajo
- US/Arizona
- US/Mountain
- Mountain Standard Time - UTC -7
- Mauritius Standard Time - UTC +4
- Moscow Standard Time - UTC +3
- Magadan Standard Time - UTC +11
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango 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 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 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 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 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/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
- 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
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 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 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 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 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
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
- 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 GMT
- Z - short form of 'Zulu'
- 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
- Greenwich Mean Time - UTC +0
- GMT+05:00 - UTC +5
- GMT+03:00 - UTC +3
- GMT - UTC +0
- GMT+11:00 - UTC +11
- GMT-02:00 - UTC -2
- 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
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
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 30, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 30, 2025, 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 26, 2025 at 3:00 am local time and clocks are set one hour back to Sunday, October 26, 2025, 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
- MET
- 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
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
- +0530 - basic
- +05:30 - extended
- +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.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2