IST to EST Converter — India to Eastern Time

IST to EST Conversion Table — Standard Time

Offset: IST -10.5 hours = EST. Applies during standard time. Work hours (9 AM–5 PM) highlighted.

IST		EST
00:00		13:30 (−1 day)
01:00		14:30 (−1 day)
02:00		15:30 (−1 day)
03:00		16:30 (−1 day)
04:00		17:30 (−1 day)
05:00		18:30 (−1 day)
06:00		19:30 (−1 day)
07:00		20:30 (−1 day)
08:00		21:30 (−1 day)
09:00		22:30 (−1 day)
10:00		23:30 (−1 day)
11:00		00:30
12:00		01:30
13:00		02:30
14:00		03:30
15:00		04:30
16:00		05:30
17:00		06:30
18:00		07:30
19:00		08:30
20:00		09:30
21:00		10:30
22:00		11:30
23:00		12:30

IST to EDT Conversion Table — Daylight Saving

Offset: IST -9.5 hours = EDT. Applies when US East Coast is observing daylight saving time.

IST		EDT
00:00		14:30 (−1 day)
01:00		15:30 (−1 day)
02:00		16:30 (−1 day)
03:00		17:30 (−1 day)
04:00		18:30 (−1 day)
05:00		19:30 (−1 day)
06:00		20:30 (−1 day)
07:00		21:30 (−1 day)
08:00		22:30 (−1 day)
09:00		23:30 (−1 day)
10:00		00:30
11:00		01:30
12:00		02:30
13:00		03:30
14:00		04:30
15:00		05:30
16:00		06:30
17:00		07:30
18:00		08:30
19:00		09:30
20:00		10:30
21:00		11:30
22:00		12:30
23:00		13:30

India and the US East Coast form one of the busiest offshore collaboration corridors in the world. IT services, software development, and business process outsourcing teams in Bangalore, Hyderabad, and Pune work with counterparts in New York, New Jersey, and North Carolina.

IST is 10 hours and 30 minutes ahead of EST. When it is 9 AM in New York, it is 7:30 PM in India — the end of the Indian workday. When the Indian workday starts at 9 AM IST, it is 10:30 PM the previous night in New York.

India does not observe Daylight Saving Time. The US does. When the US shifts to EDT in spring, the gap narrows to 9 hours and 30 minutes. A 9 AM meeting in New York then falls at 6:30 PM IST instead of 7:30 PM. This seasonal shift changes the overlap window and catches teams off guard if they don’t account for it.

Daylight Saving Time: What Changes

US East Coast observes daylight saving time, but India does not. This means the offset between IST and EST changes seasonally: 10.5 hours during standard time and 9.5 hours during daylight saving. Double-check the current offset during transition weeks in March and November.

Frequently Asked Questions

What is the time difference between IST and EST?

IST is 10 hours and 30 minutes ahead of EST during standard time (November–March). When the US is on EDT (March–November), the gap shrinks to 9 hours and 30 minutes. India does not change clocks.

Why does the IST-to-EST offset change if India has no DST?

The US shifts its clocks for DST, but India does not. When the US moves to EDT (UTC−4), the gap between IST (UTC+5:30) and Eastern drops from 10.5 to 9.5 hours.

What is the best meeting time for teams in India and New York?

The common overlap is 8–10:30 AM Eastern, which is 6:30–9 PM IST (winter) or 5:30–8 PM IST (summer). Morning in New York lines up with early evening in India. Meetings earlier than 8 AM Eastern push the Indian side past 6:30 PM.

IST to EST Converter — India to Eastern Time

IST to EST Conversion Table — Standard Time

IST to EDT Conversion Table — Daylight Saving

Daylight Saving Time: What Changes

Frequently Asked Questions

Learn More

Your calendar + time zones, at a glance.

IST to EST Converter — India to Eastern Time

IST to EST Conversion Table — Standard Time

IST to EDT Conversion Table — Daylight Saving

Daylight Saving Time: What Changes

Frequently Asked Questions

Related Conversions

Learn More

Your calendar + time zones, at a glance.