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EST to IST Time Converter

EST means Eastern Standard Time (UTC−5); IST means India Standard Time (UTC+5:30). These named offsets do not change with the season. The city planner below follows local clock changes instead.

Resolves to India Standard Time (UTC+5:30, Asia/Kolkata). IST also refers to Irish Standard Time (UTC+1 during the Irish summer) and Israel Standard Time (Asia/Jerusalem, UTC+2). Confirm the city when someone writes IST.

  • 9:00 AM EST = 7:30 PM IST
  • 12:00 PM EST = 10:30 PM IST
  • 5:00 PM EST = 3:30 AM IST (next day)

Local-time planner: New York and Kolkata. Cities follow their own DST rules. The reference sections below use September 12, 2026 in New York; changing the planner does not update those sections.

Need the opposite direction? Kolkata to New York Time →

Current City Times

New York

-04:00

Sat, Sep 12 · EDT

Kolkata

+05:30

Sat, Sep 12 · IST

City Daylight Saving Time Status

New York

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

Kolkata

Kolkata does not observe Daylight Saving Time.

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. Why EST and EDT are different →

City Meeting Times

No fully-overlapping 9 AM–6 PM window exists between New York and Kolkata. 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.
New York TimeKolkata TimeMeeting Suitability
00:0009:30
01:0010:30
02:0011:30
03:0012:30
04:0013:30
05:0014:30
06:0015:30
07:0016:30
08:0017:30⚠️ Edge
09:0018:30⚠️ Edge
10:0019:30
11:0020:30
12:0021:30
13:0022:30
14:0023:30
15:0000:30+1d
16:0001:30+1d
17:0002:30+1d
18:0003:30+1d
19:0004:30+1d
20:0005:30+1d
21:0006:30+1d
22:0007:30+1d
23:0008:30+1d

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

About This Time Zone Pair

New York and Kolkata 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 reserve live calls, chats, and syncs for high-priority moments. The most sustainable recurring slot tends to be early morning US / end-of-business India, or late evening US / early morning India.

New York (EDT) is currently 9 hours 30 minutes behind Kolkata (IST). For September 12, 2026: 9:00 AM EDT = 6:30 PM IST.

New York observes Daylight Saving Time while Kolkata does not. Their time difference changes when the city observing DST changes its clocks.

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

Export a one-off .ics calendar invite for the selected event. To make it recurring at a fixed local hour, configure the series and its anchor city timezone in your calendar application.

The city reference sections cover New York and Kolkata local times 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 New York and Kolkata?
Kolkata is currently 9 hours 30 minutes ahead of New York. New York observes Daylight Saving Time while Kolkata does not. Their time difference changes when the city observing DST changes its clocks.
What is a good meeting time between New York and Kolkata?
There is no 9 AM–6 PM overlap for today's reference table between New York and Kolkata. Agree an outside-hours time or use async communication.
When does New York switch to and from Daylight Saving Time?
New York observes Daylight Saving Time. The city DST status section shows its next transition date under current timezone rules.
How do I convert EST to IST manually?
Add 10 hours 30 minutes to the EST time. For example, 9:00 AM EST = 7:30 PM IST. This conversion uses the named fixed offsets, not the cities' seasonal local times.
What are common EST to IST conversions?
9:00 AM EST = 7:30 PM IST · 12:00 PM EST = 10:30 PM IST · 5:00 PM EST = 3:30 AM IST (next day). For date-aware city times, use the local-time planner below the fixed-offset answer.

Related Guides

City reference fact card

Route:
New YorkKolkata
Current offset:
Kolkata is 9 hours 30 minutes ahead of New York
Timezone data:
IANA tz database (tzdata)
DST handling:
City offsets reflect the reference instant shown below. Use the planner for your meeting date.
Last calculated:
2026-09-12 13:20 UTC. Cached reference; it does not follow planner changes.

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