EST to IST
India Standard Time is 10 hours 30 minutes ahead of Eastern Standard Time, and 9 hours 30 minutes ahead when the United States is on daylight time. Enter an Eastern time and date to get the exact answer.
EST to IST in one line
In winter, add 10 hours 30 minutes. In summer, add 9 hours 30 minutes. India does not change its clocks and the United States does, so the gap moves by an hour twice a year.
| When | Eastern | India | India is ahead by |
|---|---|---|---|
| Early November to mid March | EST, UTC−5 | IST, UTC+5:30 | 10 hours 30 minutes |
| Mid March to early November | EDT, UTC−4 | IST, UTC+5:30 | 9 hours 30 minutes |
In 2026, daylight time in the United States runs from Sunday 8 March to Sunday 1 November. The converter above uses the date you enter, so it picks the right row for you.
EST to IST conversion table
| Eastern Time | India, US winter (EST) | India, US summer (EDT) |
|---|---|---|
| 12:00 AM (midnight) | 10:30 AM | 9:30 AM |
| 1:00 AM | 11:30 AM | 10:30 AM |
| 2:00 AM | 12:30 PM | 11:30 AM |
| 3:00 AM | 1:30 PM | 12:30 PM |
| 4:00 AM | 2:30 PM | 1:30 PM |
| 5:00 AM | 3:30 PM | 2:30 PM |
| 6:00 AM | 4:30 PM | 3:30 PM |
| 7:00 AM | 5:30 PM | 4:30 PM |
| 8:00 AM | 6:30 PM | 5:30 PM |
| 9:00 AM | 7:30 PM | 6:30 PM |
| 10:00 AM | 8:30 PM | 7:30 PM |
| 11:00 AM | 9:30 PM | 8:30 PM |
| 12:00 PM (noon) | 10:30 PM | 9:30 PM |
| 1:00 PM | 11:30 PM | 10:30 PM |
| 2:00 PM | 12:30 AM, next day | 11:30 PM |
| 3:00 PM | 1:30 AM, next day | 12:30 AM, next day |
| 4:00 PM | 2:30 AM, next day | 1:30 AM, next day |
| 5:00 PM | 3:30 AM, next day | 2:30 AM, next day |
| 6:00 PM | 4:30 AM, next day | 3:30 AM, next day |
| 7:00 PM | 5:30 AM, next day | 4:30 AM, next day |
| 8:00 PM | 6:30 AM, next day | 5:30 AM, next day |
| 9:00 PM | 7:30 AM, next day | 6:30 AM, next day |
| 10:00 PM | 8:30 AM, next day | 7:30 AM, next day |
| 11:00 PM | 9:30 AM, next day | 8:30 AM, next day |
Shared working hours for US and India teams
The two working days barely touch. An Eastern morning is an Indian evening, and that is where most calls end up.
| Eastern Time | India in US winter | India in US summer | Works for |
|---|---|---|---|
| 7:00 AM | 5:30 PM | 4:30 PM | Early start in the US, end of day in India |
| 8:30 AM | 7:00 PM | 6:00 PM | The usual stand-up slot |
| 10:00 AM | 8:30 PM | 7:30 PM | Late evening in India |
| 9:00 PM | 7:30 AM, next day | 6:30 AM, next day | Evening in the US, start of the next day in India |
Teams often alternate between a morning Eastern slot and an evening Eastern slot so that the awkward hours are shared.
US market hours in India time
The New York Stock Exchange and Nasdaq trade from 9:30 AM to 4:00 PM Eastern. In India that is 8:00 PM to 2:30 AM the next morning in the US winter, and 7:00 PM to 1:30 AM the next morning in the US summer.
Which IST?
On this page IST means India Standard Time, used across the whole of India. The same letters are also used for Irish Standard Time and Israel Standard Time, so when you write a time for someone else, “India time” or “IST (India)” avoids confusion.
To go the other way, use IST to EST. For other cities, use the time zone converter.
Questions
How many hours ahead is IST of EST?
10 hours 30 minutes ahead of EST. When the United States is on daylight time (EDT), India is 9 hours 30 minutes ahead.
What is 9 AM EST in IST?
7:30 PM. During US daylight time, 9 AM EDT is 6:30 PM in India.
What is 8 PM EST in IST?
6:30 AM, next day. During US daylight time it is 5:30 AM, next day.
Does India have daylight saving time?
No. India keeps the same time, UTC+5:30, all year and across the whole country.
Why is India half an hour off?
India chose a single national time based on a line of longitude near the middle of the country, which falls five and a half hours ahead of Greenwich. Several other countries also use half-hour offsets.