IST to EST Converter
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Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
5:30 pm17:30 IST (UTC+5:30), Oct 12, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 12, 2026
IST is 9 hours and 30 minutes ahead of EDT.
IST and EST (US winter time, UTC-5) examples
These examples always use IST (UTC+5:30) and EST (UTC-5). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
IST is 10 hours and 30 minutes ahead of EST.
EST is US Eastern winter time (early November to mid-March). The rest of the year New York uses EDT (UTC-4), one hour later. In July, 6:00 pm IST = 8:30 am EDT18:00 IST = 08:30 EDT. For Eastern Time that follows daylight saving time, use IST to ET. For daylight-time examples, use IST to EDT.
Popular IST to EST conversions
| IST | IST 24-hour | EST (US winter time, UTC-5) | EST (US winter time, UTC-5) 24-hour |
|---|---|---|---|
| 6:00 pm | 18:00 | 7:30 am | 07:30 |
| 7:00 pm | 19:00 | 8:30 am | 08:30 |
| 10:00 pm | 22:00 | 11:30 am | 11:30 |
| 11:00 pm | 23:00 | 12:30 pm | 12:30 |
How the time difference changes
For most of the year, IST is 9 hours and 30 minutes ahead of EDT. From Nov 1, 2026 to Mar 14, 2027, 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. At other times of the year, 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.For most of the year, working hours of 09:00 to 17:00 in IST correspond to 23:30 (previous day) to 07:30 in EDT. At other times of the year, working hours of 09:00 to 17:00 in IST correspond to 22:30 (previous day) to 06:30 in EST.
Compare IST time with EST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
India Standard Time is 9 hours and 30 minutes ahead of Eastern Daylight Time.
5:30 pm17:30 in IST is 8:00 am08:00 in EDT
IST to EDT call time
Best time for a conference call or a meeting is between 5:30pm-6:30pm17:30-18:30 in IST which corresponds to 8am-9am08:00-09:00 in EDT. Their 9am–5pm09:00–17:00 working hours do not overlap; this is a suggested compromise.
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
5:30 pm17:30 IST / 8:00 am08:00 EDT
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| IST | EDT |
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India Standard Time
Offset: IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).
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, Bengaluru, Hyderabad, Ahmedabad.
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; see upcoming clock changes worldwide.
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).
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 8.804 million people. Other major cities in this time zone include Toronto, Montréal, Philadelphia, Port-au-Prince.
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
Today the lighter areas are on UTC−4 (EDT).
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).
End: Eastern Standard Time (EST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
Start: Eastern Standard Time (EST) starts on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the 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 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