IST to EST to London to New York City Time Converter
Quick answers
IST to EST
For most of the year, IST is 9 hours and 30 minutes ahead of EDT. During seasonal clock changes, IST is 10 hours and 30 minutes ahead of EST.
For most of the year, working hours of 9:00 am to 5:00 pm in IST correspond to 11:30 pm (previous day) to 7:30 am in EDT. During seasonal clock changes, working hours of 9:00 am to 5:00 pm in IST correspond to 10:30 pm (previous day) to 6:30 am in EST.
IST to London
For most of the year, IST is 4 hours and 30 minutes ahead of London. During seasonal clock changes, IST is 5 hours and 30 minutes ahead of London.
For most of the year, working hours of 9:00 am to 5:00 pm in IST correspond to 4:30 am to 12:30 pm in London. During seasonal clock changes, working hours of 9:00 am to 5:00 pm in IST correspond to 3:30 am to 11:30 am in London.
IST to New York City
For most of the year, IST is 9 hours and 30 minutes ahead of New York City. During seasonal clock changes, IST is 10 hours and 30 minutes ahead of New York City.
For most of the year, working hours of 9:00 am to 5:00 pm in IST correspond to 11:30 pm (previous day) to 7:30 am in New York City. During seasonal clock changes, working hours of 9:00 am to 5:00 pm in IST correspond to 10:30 pm (previous day) to 6:30 am in New York City.
Compare IST time with EST, London, and New York City time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
India Standard Time is 10 hours and 30 minutes ahead of Eastern Standard Time and 5 hours and 30 minutes ahead of GMT (Greenwich Mean Time) and 10 hours and 30 minutes ahead of EST (Eastern Standard Time)
5:30 pm17:30 in IST is 7:00 am07:00 in EST and is 12:00 pm12:00 in London, United Kingdom and is 7:00 am07:00 in New York City, NY, USA
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
IST to London 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 London
IST to New York City 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 New York City
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
12:00 pm12:00 GMT (Greenwich Mean Time) (London, United Kingdom). Offset UTC 0:00 hours
7:00 am07:00 EST (Eastern Standard Time) (New York City, NY, USA). Offset UTC -5:00 hours
5:30 pm17:30 IST / 7:00 am07:00 EST / 12:00 pm12:00 London, United Kingdom / 7:00 am07:00 New York City, NY, USA
| IST | EST | London, United Kingdom | New York City, NY, USA |
|---|---|---|---|
| 12am (midnight) | 1:30 pm | 6:30 pm | 1:30 pm |
| 1am | 2:30 pm | 7:30 pm | 2:30 pm |
| 2am | 3:30 pm | 8:30 pm | 3:30 pm |
| 3am | 4:30 pm | 9:30 pm | 4:30 pm |
| 4am | 5:30 pm | 10:30 pm | 5:30 pm |
| 5am | 6:30 pm | 11:30 pm | 6:30 pm |
| 6am | 7:30 pm | 12:30 am | 7:30 pm |
| 7am | 8:30 pm | 1:30 am | 8:30 pm |
| 8am | 9:30 pm | 2:30 am | 9:30 pm |
| 9am | 10:30 pm | 3:30 am | 10:30 pm |
| 10am | 11:30 pm | 4:30 am | 11:30 pm |
| 11am | 12:30 am | 5:30 am | 12:30 am |
| 12pm (noon) | 1:30 am | 6:30 am | 1:30 am |
| 1pm | 2:30 am | 7:30 am | 2:30 am |
| 2pm | 3:30 am | 8:30 am | 3:30 am |
| 3pm | 4:30 am | 9:30 am | 4:30 am |
| 4pm | 5:30 am | 10:30 am | 5:30 am |
| 5pm | 6:30 am | 11:30 am | 6:30 am |
| 6pm | 7:30 am | 12:30 pm | 7:30 am |
| 7pm | 8:30 am | 1:30 pm | 8:30 am |
| 8pm | 9:30 am | 2:30 pm | 9:30 am |
| 9pm | 10:30 am | 3:30 pm | 10:30 am |
| 10pm | 11:30 am | 4:30 pm | 11:30 am |
| 11pm | 12:30 pm | 5:30 pm | 12:30 pm |
| 00:00 | 13:30 | 18:30 | 13:30 |
| 01:00 | 14:30 | 19:30 | 14:30 |
| 02:00 | 15:30 | 20:30 | 15:30 |
| 03:00 | 16:30 | 21:30 | 16:30 |
| 04:00 | 17:30 | 22:30 | 17:30 |
| 05:00 | 18:30 | 23:30 | 18:30 |
| 06:00 | 19:30 | 00:30 | 19:30 |
| 07:00 | 20:30 | 01:30 | 20:30 |
| 08:00 | 21:30 | 02:30 | 21:30 |
| 09:00 | 22:30 | 03:30 | 22:30 |
| 10:00 | 23:30 | 04:30 | 23:30 |
| 11:00 | 00:30 | 05:30 | 00:30 |
| 12:00 | 01:30 | 06:30 | 01:30 |
| 13:00 | 02:30 | 07:30 | 02:30 |
| 14:00 | 03:30 | 08:30 | 03:30 |
| 15:00 | 04:30 | 09:30 | 04:30 |
| 16:00 | 05:30 | 10:30 | 05:30 |
| 17:00 | 06:30 | 11:30 | 06:30 |
| 18:00 | 07:30 | 12:30 | 07:30 |
| 19:00 | 08:30 | 13:30 | 08:30 |
| 20:00 | 09:30 | 14:30 | 09:30 |
| 21:00 | 10:30 | 15:30 | 10:30 |
| 22:00 | 11:30 | 16:30 | 11:30 |
| 23:00 | 12:30 | 17:30 | 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
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States
Principal Cities: The largest city in the EST 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: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Eastern Daylight Time (EDT).
Start: Eastern Standard Time (EST) started 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. Standard time starts annually on the first Sunday of November.
End: Eastern Standard Time (EST) ends 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 local daylight time instead. Standard time ends annually on the second Sunday of March.
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 an offset of five hours 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
London Information
Time Zone
GMT - Greenwich Mean Time
+0:00 hours during Greenwich Mean Time.
Sunday, March 29, 2026 at 1:00 am local time. DST starts annually on the last Sunday of March. Clocks are turned forward 1 hour to Sunday, March 29, 2026 at 2:00 am local daylight time instead. Also called Spring Forward or Summer Time.Sunday, October 25, 2026 at 2:00 am local time. DST ends annually on the last Sunday of October. Clocks are turned backward 1 hour to Sunday, October 25, 2026 at 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.London Facts
New York City Information
Time Zone
EST - Eastern Standard Time
-5:00 hours during Eastern Standard Time.
Sunday, March 8, 2026 at 2:00 am local time. DST starts annually on the 2nd Sunday of March. Clocks are turned forward 1 hour to Sunday, March 8, 2026 at 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.Sunday, November 1, 2026 at 2:00 am local time. DST ends annually on the 1st Sunday of November. Clocks are turned backward 1 hour to Sunday, November 1, 2026 at 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.