EST to IST time converter (New York to India)
EST to IST: India Standard Time is 10 hours 30 minutes ahead of New York in winter (EST) and 9 hours 30 minutes ahead in summer (EDT), because India has no daylight saving time. Enter a time and a date for the exact answer; 12:00 PM in New York in January is 10:30 PM in India.
Source: IANA Time Zone Database (tzdata). Updated: .
How it is calculated
Why the difference is 10:30 in winter and 9:30 in summer
India Standard Time is fixed at UTC+5:30 the whole year. New York is UTC−5 in winter (EST) and UTC−4 in summer (EDT), because the US moves its clocks. Winter: 5:30 − (−5) = 10 h 30 min. Summer: 5:30 − (−4) = 9 h 30 min. In 2026 the US switches to summer time on March 8 and back on November 1, so between those two dates the gap is one hour shorter. The converter takes the offset from the date you enter, not from a fixed number.
Worked examples
Winter: 9:00 AM EST is 14:00 UTC, plus 5 h 30 min = 7:30 PM IST. Summer: 9:00 AM EDT is 13:00 UTC, so 6:30 PM IST. In the other direction, an office day in Bangalore starting at 9:30 AM IST begins at 11:00 PM EST the evening before in winter, and at 12:00 AM EDT in summer.
Finding a call window
The working days barely overlap: India's 5:30 PM is 7:00 AM in New York in winter. The workable slot is New York 8:00–10:00 AM, which is 6:30–8:30 PM in India in winter and 5:30–7:30 PM in summer. Use the full-day table to read off every hour.
Which date counts?
Leave the date empty for today. For a meeting booked weeks ahead around the clock changes, enter that day: the answer changes between March and November, and India never shifts. More than two cities: time zone meeting planner, or the time difference calculator.
Frequently asked questions
What is the time difference between EST and IST?
IST is 10 hours 30 minutes ahead of EST (UTC−5). When New York is on EDT (UTC−4) in summer, the gap is 9 hours 30 minutes.
What is 12 PM EST in IST?
In winter, 12:00 PM EST is 10:30 PM IST on the same day. In summer, 12:00 PM EDT is 9:30 PM IST.
What is 9 AM EST in India time?
9:00 AM EST is 7:30 PM IST. In summer, 9:00 AM EDT is 6:30 PM IST.
Does India have daylight saving time?
No. India Standard Time is UTC+5:30 all year, so only the New York side changes.
Which IST does this converter use?
India Standard Time (UTC+5:30). The same three letters also stand for Irish Standard Time and Israel Standard Time, which are different zones.
Sources and legal basis
- IANA Time Zone Database (tzdata)
- ECMA-402 – Intl.DateTimeFormat, option timeZone
- 15 U.S.C. § 260a – daylight saving time in the United States (Cornell LII)
As of: · Editorial policy
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