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IST to EST Converter

Convert India Standard Time to US Eastern time for any date. The gap is 10½ hours in winter and 9½ hours in summer because only the US changes its clocks, and the converter picks the right one for your date.

Last updated:

India Standard Time New Delhi · Mumbai · Bengaluru --:--
Eastern Time New York · Miami · Atlanta --:--

Converting

Hour-by-hour comparison

FromToDate there
Both in 9 AM–5 PM working hoursBoth awake (7 AM–10 PM)Your selected hour
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How to use the IST to EST Converter

  1. Check the live clocks for the current time in India and on the US East Coast.
  2. Enter the IST date and time, or tap a common call time such as 7:30 PM.
  3. Read the Eastern time, including whether it is EST or EDT and which day it falls on.
  4. Use the table to find hours that suit both sides; tinted rows are when both are awake.
  5. Copy the result or the link to share it, or press Swap for Eastern to IST.

IST to Eastern time table

Because the US changes clocks and India does not, there are two answers for every India time. Use the EST column from early November to mid-March and the EDT column for the rest of the year.

India (IST)Eastern winter (EST)Eastern summer (EDT)
6:00 AM7:30 PM (prev. day)8:30 PM (prev. day)
7:00 AM8:30 PM (prev. day)9:30 PM (prev. day)
8:00 AM9:30 PM (prev. day)10:30 PM (prev. day)
9:00 AM10:30 PM (prev. day)11:30 PM (prev. day)
10:00 AM11:30 PM (prev. day)12:30 AM
11:00 AM12:30 AM1:30 AM
12:00 PM1:30 AM2:30 AM
1:00 PM2:30 AM3:30 AM
2:00 PM3:30 AM4:30 AM
3:00 PM4:30 AM5:30 AM
4:00 PM5:30 AM6:30 AM
5:00 PM6:30 AM7:30 AM
6:00 PM7:30 AM8:30 AM
7:00 PM8:30 AM9:30 AM
8:00 PM9:30 AM10:30 AM
9:00 PM10:30 AM11:30 AM
10:00 PM11:30 AM12:30 PM
11:00 PM12:30 PM1:30 PM

How IST to EST conversion works

IST is UTC+5:30. Eastern time is UTC−5:00 in winter (EST) and UTC−4:00 in summer (EDT). So ET = IST − 10:30 in winter and ET = IST − 9:30 in summer. If the result goes below midnight, the Eastern date is the previous day: 7:00 AM IST on a Tuesday is 8:30 PM EST on Monday. The converter reads the correct US offset for your date from your browser's time zone database, so the March and November changeover weeks are handled for you.

Planning India–US East Coast calls

  • India evening = US morning. 7:30 PM IST is 9:00 AM EST or 10:00 AM EDT, the most common slot for daily stand-ups.
  • Watch the March and November shifts. When the US moves its clocks, a recurring 9:00 AM ET meeting moves one hour earlier or later in India. In summer it is 6:30 PM IST, in winter 7:30 PM IST.
  • Friday evening in India is Friday morning in the US, but a Monday 8:00 AM IST message arrives on Sunday evening Eastern time.
  • Label meetings with both times (for example “9:00 AM ET / 7:30 PM IST”) so nobody has to convert.

Frequently asked questions

What is the time difference between IST and EST?

India is 10 hours 30 minutes ahead of Eastern Standard Time (early November to mid-March) and 9 hours 30 minutes ahead of Eastern Daylight Time (mid-March to early November). India does not use daylight saving time, so the gap changes only when the US changes its clocks.

How do I convert IST to EST?

Subtract 10 hours 30 minutes in winter or 9 hours 30 minutes in summer. For example, 8:00 PM IST is 9:30 AM EST in January and 10:30 AM EDT in July.

What is 9 PM IST in EST?

9:00 PM IST is 10:30 AM EST in winter and 11:30 AM EDT in summer, on the same date.

What is 9 AM IST in US Eastern time?

9:00 AM IST is 10:30 PM EST or 11:30 PM EDT on the previous day. Morning in India is the night before on the US East Coast.

What is the best time for a call between India and the US East Coast?

There are no shared 9-to-5 office hours. The usual compromise is India evening and US morning: 6:30 PM to 9:30 PM IST is 8:00 AM to 11:00 AM EST in winter, or 9:00 AM to 12:00 PM EDT in summer.

Does India have daylight saving time?

No. India uses IST (UTC+5:30) all year across the whole country, so only US daylight saving changes the gap.

Why is IST a half-hour offset?

India Standard Time is based on the 82.5° E meridian near Mirzapur, which is 5½ hours ahead of Greenwich. As a result, converted US times always end in :30 when the India time is on the hour.

Are all the tools on FreeToolCabin tested for quality and accuracy?

Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.

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