EST to IST converter
Eastern Time to India Standard Time. IST is 10 h 30 min ahead of EST in January and 9 h 30 min ahead in July.
From
EST · New York EDT · UTC−4
- IST · KolkataUTC+5:30 · 9 h 30 min ahead18:30Mon, Sep 28
The gap between EST and IST
| 2026 | EST clocks | IST clocks | Difference |
|---|---|---|---|
| January | EST UTC−5 | GMT+5:30 UTC+5:30 | 10 h 30 min ahead |
| July | EDT UTC−4 | GMT+5:30 UTC+5:30 | 9 h 30 min ahead |
The gap changes on: Sun, March 8, 2026 (9 h 30 min ahead); Sun, November 1, 2026 (10 h 30 min ahead); Sun, March 14, 2027 (9 h 30 min ahead); Sun, November 7, 2027 (10 h 30 min ahead).
Convert the other way: IST to EST · Plan a meeting across more places
EST to IST time table
Every hour of the EST day and the matching IST time, for a mid-January and a mid-July date.
| EST | IST · January | IST · July |
|---|---|---|
| 12:00 AM | 10:30 AM | 9:30 AM |
| 1:00 AM | 11:30 AM | 10:30 AM |
| 2:00 AM | 12:30 PM | 11:30 AM |
| 3:00 AM | 1:30 PM | 12:30 PM |
| 4:00 AM | 2:30 PM | 1:30 PM |
| 5:00 AM | 3:30 PM | 2:30 PM |
| 6:00 AM | 4:30 PM | 3:30 PM |
| 7:00 AM | 5:30 PM | 4:30 PM |
| 8:00 AM | 6:30 PM | 5:30 PM |
| 9:00 AM | 7:30 PM | 6:30 PM |
| 10:00 AM | 8:30 PM | 7:30 PM |
| 11:00 AM | 9:30 PM | 8:30 PM |
| 12:00 PM | 10:30 PM | 9:30 PM |
| 1:00 PM | 11:30 PM | 10:30 PM |
| 2:00 PM | 12:30 AM (+1 day) | 11:30 PM |
| 3:00 PM | 1:30 AM (+1 day) | 12:30 AM (+1 day) |
| 4:00 PM | 2:30 AM (+1 day) | 1:30 AM (+1 day) |
| 5:00 PM | 3:30 AM (+1 day) | 2:30 AM (+1 day) |
| 6:00 PM | 4:30 AM (+1 day) | 3:30 AM (+1 day) |
| 7:00 PM | 5:30 AM (+1 day) | 4:30 AM (+1 day) |
| 8:00 PM | 6:30 AM (+1 day) | 5:30 AM (+1 day) |
| 9:00 PM | 7:30 AM (+1 day) | 6:30 AM (+1 day) |
| 10:00 PM | 8:30 AM (+1 day) | 7:30 AM (+1 day) |
| 11:00 PM | 9:30 AM (+1 day) | 8:30 AM (+1 day) |
About these two clocks
EST — Eastern Time. Used in New York, Toronto, Miami, Atlanta. Strictly, EST is the winter name; from March to November the same clocks show EDT (UTC−4). This page follows the clocks, so summer dates use EDT.
IST — India Standard Time. Used in all of India — Mumbai, Delhi, Bengaluru. India does not use daylight saving time, so IST is UTC+5:30 all year.
All figures on this page come from the IANA time zone database (the same data your phone and laptop use), evaluated for the date in question. Abbreviations are ambiguous — “IST” also means Irish or Israel Standard Time, and “CST” is China Standard Time in Asia — so this page uses America/New_York and Asia/Kolkata explicitly.
Questions people ask
How many hours ahead or behind is IST compared with EST?
IST is 10 h 30 min ahead of EST in January and 9 h 30 min ahead in July. The gap moves because daylight saving time starts and ends on different dates (or not at all) in the two places.
What is 9 am EST in IST?
On a January date, 9:00 am EST is 7:30 PM IST. In July it is 6:30 PM. Use the converter above for any other date.
Which cities use EST?
Eastern Time (EST) is used in New York, Toronto, Miami, Atlanta. Strictly, EST is the winter name; from March to November the same clocks show EDT (UTC−4). This page follows the clocks, so summer dates use EDT.
Which cities use IST?
India Standard Time (IST) is used in all of India — Mumbai, Delhi, Bengaluru. India does not use daylight saving time, so IST is UTC+5:30 all year.
When is a good time for a EST–IST call?
Look for the hours where both columns in the table fall between about 8 am and 6 pm. If none exist, the meeting planner on our home page shows the least-bad options and lets you share a link that converts for every attendee.
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