Time Difference: USA and India
India is 10 hours 30 minutes ahead of the US East Coast in winter and 9 hours 30 minutes ahead in summer. 9:00 AM Eastern is 7:30 PM in India on EST and 6:30 PM on EDT.
The Gap Depends on Which US Zone You Mean
The US has no single time, so "the time difference between the USA and India" needs a zone. India is UTC+5:30 all year; this is how far ahead it is of each US zone:
| US zone | India is ahead by |
|---|---|
| Eastern (New York, Atlanta) | 10 hours 30 minutes on EST, 9 hours 30 minutes on EDT |
| Central (Chicago, Dallas) | 11 hours 30 minutes on CST, 10 hours 30 minutes on CDT |
| Mountain (Denver, Salt Lake City) | 12 hours 30 minutes on MST, 11 hours 30 minutes on MDT |
| Arizona (no clock change) | 12 hours 30 minutes all year |
| Pacific (Los Angeles, Seattle) | 13 hours 30 minutes on PST, 12 hours 30 minutes on PDT |
| Alaska (Anchorage) | 14 hours 30 minutes on AKST, 13 hours 30 minutes on AKDT |
| Hawaii (no clock change) | 15 hours 30 minutes all year |
The tables below use the East Coast. The US moves its clocks on the second Sunday in March and the first Sunday in November, which is the only reason the gap ever changes.
India's Evening Is the East Coast Morning
The two countries meet at opposite ends of their days. An Eastern 7:30 AM start is 6:00 PM in India on EST and 5:00 PM on EDT, the end of an Indian working day. An Eastern 8:00 PM is 6:30 AM the next day in India on EST.
Going the other way, India's 9:00 AM is 10:30 PM the previous day on the East Coast on EST and 11:30 PM the previous day on EDT, and India's 6:00 PM is 7:30 AM on EST and 8:30 AM on EDT.
The Nearest Thing to a Shared Hour
Not on a standard 9-to-5. The closest are the first Eastern hours of the day and the last India hours: Eastern 8:00 to 9:00 AM is 6:30 PM to 7:30 PM in India on EST and 5:30 PM to 6:30 PM on EDT. Anything from late morning on the East Coast is already night in India.
| New York | India (EST → IST) | India (EDT → IST) |
|---|---|---|
| 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 | 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) |
Each row is an hour of the New York day. A check mark means both cities are inside a 9 AM to 5 PM working day at that moment.
- EST → IST: no shared working hours.
- EDT → IST: no shared working hours.
US Eastern Time in India, Every Hour
Each column is one real season of the New York-India gap. Pick the column that matches your date.
| 🇺🇸 New York (ET) | 🇮🇳 India (EST → IST) | 🇮🇳 India (EDT → IST) |
|---|---|---|
| 00:00 | 10:30 | 09:30 |
| 03:00 | 13:30 | 12:30 |
| 06:00 | 16:30 | 15:30 |
| 09:00 | 19:30 | 18:30 |
| 12:00 | 22:30 | 21:30 |
| 15:00 | 01:30(next day) | 00:30(next day) |
| 18:00 | 04:30(next day) | 03:30(next day) |
| 21:00 | 07:30(next day) | 06:30(next day) |
- EST → IST: first Sunday in November to second Sunday in March, while the US East Coast is on EST
- EDT → IST: second Sunday in March to first Sunday in November, while the US East Coast is on EDT
* "next day" / "prev day" = the converted time falls on a different calendar date.
Friday Afternoon Is Already Saturday in India
From 1:30 PM Eastern on EST (2:30 PM on EDT) it is past midnight in India, which makes it Saturday there. A request sent at 5:00 PM on a Friday reaches India at 3:30 AM the next day on EST, and is unlikely to be read before Monday morning in India, which is Sunday night on the East Coast.
The risk repeats with every recurring invite. India does not change its clocks, so a series fixed in US Eastern time moves by an hour on India's clock in March and November, and one fixed in India time moves on the East Coast. Name both zones in the invite and check the weeks around the clock changes.
A Weekly Call That Starts on the East Coast
Say an East Coast team calls India at 7:30 AM Eastern. That's 6:00 PM in India on EST and 5:00 PM on EDT. If India hosts at 6:30 PM IST, the East Coast joins at 8:00 AM on EST and 9:00 AM on EDT.
After the second Sunday in March a call fixed at 7:30 AM Eastern is an hour earlier in India, and a call fixed at 6:30 PM India time is an hour later on the East Coast. Only the US moves, so the side that fixed the time decides which clock stays steady.