Convert IST to EST
EST is 9½ or 10½ hours behind IST
9:00 AM IST is 10:30 PM (day before) EST in January and 11:30 PM (day before) in July.
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Good to know
IST is also used for Irish Standard Time and Israel Standard Time; IANA's time zone database notes that 'IST can refer to time in India, Ireland or Israel'. India's IST is UTC+5:30 all year.
IST to EST time table
Times on 15 January and 15 July 2026; the difference changes with daylight saving.
| IST | EST (January) | EST (July) |
|---|---|---|
| 6:00 AM | 7:30 PM (day before) | 8:30 PM (day before) |
| 8:00 AM | 9:30 PM (day before) | 10:30 PM (day before) |
| 9:00 AM | 10:30 PM (day before) | 11:30 PM (day before) |
| 10:00 AM | 11:30 PM (day before) | 12:30 AM |
| 12:00 PM | 1:30 AM | 2:30 AM |
| 2:00 PM | 3:30 AM | 4:30 AM |
| 4:00 PM | 5:30 AM | 6:30 AM |
| 5:00 PM | 6:30 AM | 7:30 AM |
| 6:00 PM | 7:30 AM | 8:30 AM |
| 8:00 PM | 9:30 AM | 10:30 AM |
| 10:00 PM | 11:30 AM | 12:30 PM |
When the difference changes
EST is 9½ or 10½ hours behind IST — in 2026:
- Until 8 March: 10½ hours behind
- From 8 March to 1 November: 9½ hours behind
- From 1 November: 10½ hours behind
The gap moves because the two places change their clocks on different dates, or only one of them changes at all.
Worked out from the IANA time zone database for 2026; the converter above uses the rules for whatever date you enter.
Related conversions
- EST to IST ⇄
- PST to EST
- EST to PST
- EST to CST
- CST to EST
- PST to CST
- CST to IST
- IST to PST
- UTC to EST
- UTC to PST
- GMT to EST
- CET to EST
- London to New York
Other places? The full Time Zone Converter converts between any of the world's time zones, with daylight saving handled for each date, and the Unit Converters page lists the rest.
IST to EST — questions
What is the time difference between IST and EST?
EST is 9½ or 10½ hours behind IST. In 2026: 10½ hours until 8 March, 9½ hours from 8 March to 1 November, 10½ hours from 1 November. It changes because the two places change their clocks on different dates. IST is also used for Irish Standard Time and Israel Standard Time; IANA's time zone database notes that 'IST can refer to time in India, Ireland or Israel'. India's IST is UTC+5:30 all year.
If it is 9 AM IST, what time is it EST?
10:30 PM (day before) in January, 11:30 PM (day before) in July EST.
What time is 5 PM EST in IST?
3:30 AM (next day) in January, 2:30 AM (next day) in July IST.