IST to GMT to PDT to EDT
PDT is not used on this date
This converter uses PST (GMT -8), the offset Los Angeles uses on this date. Open the PST converter.EDT is not used on this date
This converter uses EST (GMT -5), the offset New York uses on this date. Open the EST converter.Compare IST time with GMT, PDT, and EDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
India Standard Time is 5 hours and 30 minutes ahead of Greenwich Mean Time and 13 hours and 30 minutes ahead of Pacific Standard Time and 10 hours and 30 minutes ahead of Eastern Standard Time
5:30 pm17:30 in IST is 12:00 pm12:00 in GMT and is 4:00 am04:00 in PST and is 7:00 am07:00 in EST
IST to GMT call time
Best time for a conference call or a meeting is between 2:30pm-5pm in IST which corresponds to 9am-11:30am in GMT
IST to PST call time
Best time for a conference call or a meeting is between 7:30am-8:30am in IST which corresponds to 6pm-7pm in PST (previous day)
IST to EST call time
Best time for a conference call or a meeting is between 6pm-7pm in IST which corresponds to 7:30am-8:30am in EST
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
4:00 am04:00 Pacific Standard Time (PST). Offset UTC -8:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
5:30 pm17:30 IST / 12:00 pm12:00 GMT / 4:00 am04:00 PST / 7:00 am07:00 EST
| IST | GMT | PST | EST |
|---|---|---|---|
| 12am (midnight) | 6:30 pm | 10:30 am | 1:30 pm |
| 1am | 7:30 pm | 11:30 am | 2:30 pm |
| 2am | 8:30 pm | 12:30 pm | 3:30 pm |
| 3am | 9:30 pm | 1:30 pm | 4:30 pm |
| 4am | 10:30 pm | 2:30 pm | 5:30 pm |
| 5am | 11:30 pm | 3:30 pm | 6:30 pm |
| 6am | 12:30 am | 4:30 pm | 7:30 pm |
| 7am | 1:30 am | 5:30 pm | 8:30 pm |
| 8am | 2:30 am | 6:30 pm | 9:30 pm |
| 9am | 3:30 am | 7:30 pm | 10:30 pm |
| 10am | 4:30 am | 8:30 pm | 11:30 pm |
| 11am | 5:30 am | 9:30 pm | 12:30 am |
| 12pm (noon) | 6:30 am | 10:30 pm | 1:30 am |
| 1pm | 7:30 am | 11:30 pm | 2:30 am |
| 2pm | 8:30 am | 12:30 am | 3:30 am |
| 3pm | 9:30 am | 1:30 am | 4:30 am |
| 4pm | 10:30 am | 2:30 am | 5:30 am |
| 5pm | 11:30 am | 3:30 am | 6:30 am |
| 6pm | 12:30 pm | 4:30 am | 7:30 am |
| 7pm | 1:30 pm | 5:30 am | 8:30 am |
| 8pm | 2:30 pm | 6:30 am | 9:30 am |
| 9pm | 3:30 pm | 7:30 am | 10:30 am |
| 10pm | 4:30 pm | 8:30 am | 11:30 am |
| 11pm | 5:30 pm | 9:30 am | 12:30 pm |
| 00:00 | 18:30 | 10:30 | 13:30 |
| 01:00 | 19:30 | 11:30 | 14:30 |
| 02:00 | 20:30 | 12:30 | 15:30 |
| 03:00 | 21:30 | 13:30 | 16:30 |
| 04:00 | 22:30 | 14:30 | 17:30 |
| 05:00 | 23:30 | 15:30 | 18:30 |
| 06:00 | 00:30 | 16:30 | 19:30 |
| 07:00 | 01:30 | 17:30 | 20:30 |
| 08:00 | 02:30 | 18:30 | 21:30 |
| 09:00 | 03:30 | 19:30 | 22:30 |
| 10:00 | 04:30 | 20:30 | 23:30 |
| 11:00 | 05:30 | 21:30 | 00:30 |
| 12:00 | 06:30 | 22:30 | 01:30 |
| 13:00 | 07:30 | 23:30 | 02:30 |
| 14:00 | 08:30 | 00:30 | 03:30 |
| 15:00 | 09:30 | 01:30 | 04:30 |
| 16:00 | 10:30 | 02:30 | 05:30 |
| 17:00 | 11:30 | 03:30 | 06:30 |
| 18:00 | 12:30 | 04:30 | 07:30 |
| 19:00 | 13:30 | 05:30 | 08:30 |
| 20:00 | 14:30 | 06:30 | 09:30 |
| 21:00 | 15:30 | 07:30 | 10:30 |
| 22:00 | 16:30 | 08:30 | 11:30 |
| 23:00 | 17:30 | 09:30 | 12:30 |
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: India
Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bangalore, Kolkata, Chennai.
Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.
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 an offset of five hours and thirty minutes 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
Greenwich Mean Time
Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: 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 time zone is London in United Kingdom, with about 7.557 million people. Other major cities in this time zone include 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 the zero UTC/GMT offset.
- 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
- 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
Pacific Daylight Time
Offset: PDT is 7 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the PDT time zone is Los Angeles in the United States, with about 3.793 million people. Other major cities in this time zone include Vancouver, Tijuana, San Diego, San Jose.
French: HAP - Heure Avancée du Pacifique
Spanish: PT - Zona Noroeste
Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Pacific Standard Time (PST).
End: Pacific Daylight Time (PDT) ended on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am local standard time instead. Daylight saving ends annually on the first Sunday of November
Start: Pacific Daylight Time (PDT) starts on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am. Daylight saving starts annually on the second Sunday of March
PDT 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 an offset of seven hours to the west of the zero meridian.
- Tango - Military abbreviation for PDT
- T - short form of 'Tango'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone
Eastern Daylight Time
Offset: EDT is 4 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Bahamas, Canada, Haiti, Turks & Caicos Is, United States
Principal Cities: The largest city in the EDT time zone is New York City in the United States, with about 8.175 million people. Other major cities in this time zone include 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 time zone, but some places set clocks back one hour during winter and observe Eastern Standard Time (EST).
End: Eastern Daylight Time (EDT) ended on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am local standard time instead. Daylight saving ends annually on the first Sunday of November
Start: Eastern Daylight Time (EDT) starts on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am. Daylight saving starts annually on the second Sunday of March
EDT 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 an offset of four hours to the west of the zero meridian.
- Quebec - Military abbreviation for EDT
- Q - short form of 'Quebec'
- 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
- 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