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城市数据来源:GeoNames(CC BY 4.0)。时区数据来源:IANA 时区数据库。

  1. WorldClockTools
  2. 时区转换器
  3. EDT -> IST

Timezone converter

EDT到IST转换器.

EDT → ISTGap: +9h 30mNo 9-5 overlap

EDT to IST currently uses Eastern Time in America/New_York and India Time in Asia/Kolkata as the live reference pair, with a +9h 30m live gap. EDT to IST matters whenever New York City and Mumbai need to coordinate across a +9h 30m gap. The EDT side covers United States and Canada, while IST covers India and Israel — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.

Last updated Apr 26, 2026. Offset math, DST behavior, and city coverage on both sides are refreshed from the live timezone dataset during the page revalidation window.

How this is calculated

How we calculate this
The current offset for each abbreviation is resolved against the live IANA timezone rules. Conversion accounts for DST transitions on both sides, so the gap between EDT and IST can change by an hour twice a year.
Data sources
IANA Time Zone Database (offsets, DST). City attribution from GeoNames (CC BY 4.0).
Update cadence
Page regenerates daily; live offset values reflect the moment the page is rendered.
Reverse: IST → EDT

Ambiguity note

IST is ambiguous in this dataset, so the live converter uses Asia/Kolkata as the busiest reference zone while the city list below shows the wider label family.

From

EDT

Eastern Time

America/New_York · EDT -04:00

--:--:--

Major markets in this grouping include New York City, Toronto, Brooklyn, Queens.

To

IST

India Time

Asia/Kolkata · GMT+5:30 +05:30

--:--:--

Major markets in this grouping include Mumbai, Delhi, Bengaluru, Hyderabad.

Scheduling snapshot

Current gap

+9h 30m

EDT -04:00 vs IST +05:30

9-to-5 overlap

No shared block

Meetings usually need an early or late handoff.

Representative countries

United States, Canada, and Haiti / India, Israel, and Sri Lanka

Based on the busiest city and zone usage found in the current dataset.

Pair context

EDT (New York City, -04:00) to IST (Mumbai, +05:30) is currently a +9h 30m conversion. Live coverage on the EDT side is anchored by New York City, Toronto, Brooklyn, and Queens; the IST side draws from Mumbai, Delhi, Bengaluru, and Hyderabad.

EDT to IST matters whenever New York City and Mumbai need to coordinate across a +9h 30m gap. The EDT side covers United States and Canada, while IST covers India and Israel — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.

This pair is trans-Pacific, with one side in the Americas and the other in Asia or Oceania. The +9h 30m gap is large enough that morning on one side reliably overlaps evening on the other, which is why this conversion mostly serves global supply chains, gaming launch schedules, and follow-the-sun engineering.

EDT follows seasonal clock changes through America/New_York, while IST stays on a fixed offset year-round. That asymmetry is the real differentiator on this page: the gap widens or narrows by an hour twice a year, so calendar invites scheduled in one season often look wrong in the other.

EDT and IST sit 9h 30m apart, which leaves no shared 9-to-5 block. Live meetings have to bend one side's day, so most teams settle for one of two narrow windows: very early on the late side, or very late on the early side. That makes async messages, recorded standups, and clear handoff notes more valuable than calendar invites.

Market coverage on both sides

EDT coverage on this page is led by New York City, United States, Toronto, Canada, Brooklyn, United States, and Queens, United States, with 2 more in the live dataset. That mix is what makes EDT feel anchored to East Coast and Central American business activity in practice rather than just an abbreviation on a chart.

IST coverage is led by Mumbai, India, Delhi, India, Bengaluru, India, and Hyderabad, India, with 2 more anchoring the wider label family. Combined with the EDT side, this conversion ends up describing trans-Pacific outsourcing handoffs, gaming and entertainment release windows, and follow-the-sun engineering rotations.

Digit-Roll Converter

Adjust the time — digits roll like an odometer. Swap button flips the zones.

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Common meeting times

EDT to IST meeting times

Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.

EDTISTDay relation
9:00 AM6:30 PMSun, Apr 26same day
12:00 PM9:30 PMSun, Apr 26same day
3:00 PM12:30 AMMon, Apr 27next day
6:00 PM3:30 AMMon, Apr 27next day
9:00 PM6:30 AMMon, Apr 27next day

IST to EDT meeting times

Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.

ISTEDTDay relation
9:00 AM11:30 PMSun, Apr 26previous day
12:00 PM2:30 AMMon, Apr 27same day
3:00 PM5:30 AMMon, Apr 27same day
6:00 PM8:30 AMMon, Apr 27same day
9:00 PM11:30 AMMon, Apr 27same day

Operational notes

EDT to IST ranges from EDT 9:00 AM (which lands at IST 6:30 PM) through EDT 9:00 PM (IST 6:30 AM). Most of those slots fall on a different calendar day on the IST side, which is why this direction always needs explicit dates in invites and ticket comments — the time alone is not enough.

IST to EDT ranges from IST 9:00 AM (which lands at EDT 11:30 PM) through IST 9:00 PM (EDT 11:30 AM). With no clean 9-to-5 overlap between IST and EDT, both ends of this range push outside standard hours — useful for recorded standups and async work, awkward for live calls.

Popular hour answers

These direct answers are here for the exact-intent searches people actually use, like “10 AM EDT to IST” or “4 PM EDT in IST”.

8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM9 PM

What is 8 AM EDT in IST?

8 AM EDT = 5:30 PM IST (17:30). On today's live calendar that lands on Sun, Apr 26 in IST, which means the answer is a same day conversion rather than a static offset lookup.

What is 9 AM EDT in IST?

9 AM EDT = 6:30 PM IST (18:30). On today's live calendar that lands on Sun, Apr 26 in IST, which means the answer is a same day conversion rather than a static offset lookup.

What is 10 AM EDT in IST?

10 AM EDT = 7:30 PM IST (19:30). On today's live calendar that lands on Sun, Apr 26 in IST, which means the answer is a same day conversion rather than a static offset lookup.

What is 11 AM EDT in IST?

11 AM EDT = 8:30 PM IST (20:30). On today's live calendar that lands on Sun, Apr 26 in IST, which means the answer is a same day conversion rather than a static offset lookup.

What is 12 PM EDT in IST?

12 PM EDT = 9:30 PM IST (21:30). On today's live calendar that lands on Sun, Apr 26 in IST, which means the answer is a same day conversion rather than a static offset lookup.

What is 1 PM EDT in IST?

1 PM EDT = 10:30 PM IST (22:30). On today's live calendar that lands on Sun, Apr 26 in IST, which means the answer is a same day conversion rather than a static offset lookup.

What is 2 PM EDT in IST?

2 PM EDT = 11:30 PM IST (23:30). On today's live calendar that lands on Sun, Apr 26 in IST, which means the answer is a same day conversion rather than a static offset lookup.

What is 3 PM EDT in IST?

3 PM EDT = 12:30 AM IST (00:30). On today's live calendar that lands on Mon, Apr 27 in IST, which means the answer is a next day conversion rather than a static offset lookup.

What is 4 PM EDT in IST?

4 PM EDT = 1:30 AM IST (01:30). On today's live calendar that lands on Mon, Apr 27 in IST, which means the answer is a next day conversion rather than a static offset lookup.

What is 5 PM EDT in IST?

5 PM EDT = 2:30 AM IST (02:30). On today's live calendar that lands on Mon, Apr 27 in IST, which means the answer is a next day conversion rather than a static offset lookup.

What is 6 PM EDT in IST?

6 PM EDT = 3:30 AM IST (03:30). On today's live calendar that lands on Mon, Apr 27 in IST, which means the answer is a next day conversion rather than a static offset lookup.

What is 9 PM EDT in IST?

9 PM EDT = 6:30 AM IST (06:30). On today's live calendar that lands on Mon, Apr 27 in IST, which means the answer is a next day conversion rather than a static offset lookup.

Overlap window and DST radar

The live gap is +9h 30m right now, based on America/New_York at -04:00 and Asia/Kolkata at +05:30. America/New_York changes offset on November 1, 2026, so the gap moves to +10h 30m after that transition.

There is no strict 9 AM to 5 PM overlap right now, so this pair is better for handoffs, travel planning, or async coordination than for midday meetings.

America/New_York changes from -05:00 (EST) to -05:00 (EST) on November 1, 2026 at about 1:15 AM.

Reference zones

America/New_York

EDT · -04:00

Asia/Kolkata

GMT+5:30 · +05:30

These are the busiest live references selected from the abbreviation families on this page.

转换表

EDTIST
20:0005:30
21:0006:30
22:0007:30
23:0008:30
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
09:0018:30
10:0019:30
11:0020:30
12:0021:30
13:0022:30
14:0023:30
15:0000:30
16:0001:30
17:0002:30
18:0003:30
19:0004:30

Top cities using EDT

Countries represented here include United States, Canada, and Haiti.

New York CityUnited StatesTorontoCanadaBrooklynUnited StatesQueensUnited StatesMontréalCanadaPhiladelphiaUnited StatesManhattanUnited StatesThe BronxUnited StatesPort-au-PrinceHaitiOttawaCanada

Top cities using IST

Countries represented here include India, Israel, and Sri Lanka.

MumbaiIndiaDelhiIndiaBengaluruIndiaHyderabadIndiaAhmedabadIndiaChennaiIndiaKolkataIndiaSuratIndiaPuneIndiaJaipurIndia

FAQ

How many hours is IST ahead of EDT?
IST is currently +9h 30m relative to EDT, using America/New_York and Asia/Kolkata as the live reference zones on this page.
What is the best workday overlap between EDT and IST?
There is no strict 9-to-5 overlap right now, so one side usually needs an early start or late finish for live meetings.
Does the EDT-IST time difference change during DST?
The live gap is +9h 30m right now, based on America/New_York at -04:00 and Asia/Kolkata at +05:30. America/New_York changes offset on November 1, 2026, so the gap moves to +10h 30m after that transition.
Which cities commonly use EDT and IST?
EDT commonly covers cities such as New York City, Toronto, Brooklyn, and Queens, while IST commonly covers cities such as Mumbai, Delhi, Bengaluru, and Hyderabad.
Should I use EDT/IST or exact IANA zones?
Use the abbreviations for a quick read, but use exact IANA zones such as America/New_York and Asia/Kolkata when you need something precise in software, travel plans, or long-range scheduling.
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相关转换

EST → ISTPST → ISTCST → ISTMST → ISTGMT → ISTUTC → ISTIST → CETIST → CESTIST → JSTIST → AESTIST → AEDTIST → BST

Related planning pages

Once a conversion pair matters, people usually need a city page, compare page, or a broader browse surface next.

Interactive converter

Move from this static pair into the full timezone converter with more cities and abbreviations.

Compare city pairs

Use compare pages when the practical question is overlap, not just offset arithmetic.

World clock

Open live city clocks after narrowing the timezone pair you care about.

Browse city pages

Jump into the strongest city pages when you want location-specific timezone context.