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IST to EST Time Converter

New York is currently 9.5 hours behind Kolkata.

Current Time

Kolkata

+05:30

Sat, Jun 13 · GMT+5:30

New York

-04:00

Fri, Jun 12 · EDT

Daylight Saving Time Status

Kolkata

Kolkata does not observe Daylight Saving Time.

New York

New York is currently observing EDT (summer time). Returns to standard time on November 1, 2026.

Abbreviation note: IST on this page refers to India Standard Time (UTC+5:30). IST is also used for Irish Standard Time (UTC+1, summer only) and Israel Standard Time (UTC+2). When coordinating across teams, confirm which IST your contacts are using.

Best Meeting Times

No fully-overlapping 9 AM–6 PM window exists between Kolkata and New York. The yellow (⚠️) rows below are edge-hour windows — one side is at the boundary of their working day. These work for brief syncs; async tools are better for most ongoing collaboration.
Kolkata TimeNew York TimeMeeting Suitability
00:0014:30-1d
01:0015:30-1d
02:0016:30-1d
03:0017:30-1d
04:0018:30-1d
05:0019:30-1d
06:0020:30-1d
07:0021:30-1d
08:0022:30-1d
09:0023:30-1d
10:0000:30
11:0001:30
12:0002:30
13:0003:30
14:0004:30
15:0005:30
16:0006:30
17:0007:30
18:0008:30⚠️ Edge
19:0009:30
20:0010:30
21:0011:30
22:0012:30
23:0013:30

✅ Both cities within 9 AM–6 PM  ⚠️ One city on edge of working hours

About This Time Zone Pair

Kolkata and New York span a large enough offset that no standard 9 AM–6 PM business overlap exists. Many global teams working this pair adopt async-first workflows and use live calls only for high-priority syncs. The most sustainable recurring slot tends to be early morning US / end-of-business India, or late evening US / early morning India.

Kolkata (GMT+5:30) is 9.5 hours ahead of New York (EDT). When it's 9:00 AM in Kolkata, it's 11:30 PM in New York.

New York observes Daylight Saving Time, which means the offset between the two cities may shift by one hour during DST transitions.

There is no standard 9 AM–6 PM overlap between Kolkata and New York. For recurring meetings, consider early morning in Kolkata or late afternoon in New York, and use async tools when possible.

For one-off conversions, use the converter above. For recurring meetings, export an .ics calendar invite — attendees see the time in their local zone automatically.

This guide covers Kolkata (IST) to New York (EST) specifically. To convert a different pair, browse all conversions or add cities directly in the converter above.

Frequently Asked Questions

What is the time difference between Kolkata and New York?
New York is 9.5 hours behind Kolkata. This offset may shift by one hour when either city transitions in or out of Daylight Saving Time.
What is a good meeting time between Kolkata and New York?
There is no standard 9 AM–6 PM overlap between Kolkata and New York. Consider early morning in one city or late afternoon in the other, or use async communication.
Does Kolkata observe Daylight Saving Time?
No. Kolkata (IST) does not observe Daylight Saving Time. The offset remains constant year-round.
How do I convert IST to EST manually?
Subtract 9.5 hours to the IST time. For example, 9:00 AM IST = 11:30 PM EST. (DST may shift this by ±1 hour twice a year.)

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