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BlogHow it works

EST to IST Converter

Enter an Eastern time and a date to get the time in Delhi, Mumbai, Bengaluru or Kolkata. The converter applies US daylight saving automatically; India keeps the same clock all year.

Eastern Time

ESTEastern Time

ISTIndia Standard Time

––:––

IST
Also called India Standard Time · UTC+5:30
The single time zone for all of India, set half an hour off the usual grid and kept without daylight saving. Against New York it is 10 h 30 min ahead in the US winter and 9 h 30 min ahead in the US summer.

Eastern hours in India time

EST timeEST · ISTEDT · IST
12:00 AM10:30 AM9:30 AM
1:00 AM11:30 AM10:30 AM
2:00 AM12:30 PM11:30 AM
3:00 AM1:30 PM12:30 PM
4:00 AM2:30 PM1:30 PM
5:00 AM3:30 PM2:30 PM
6:00 AM4:30 PM3:30 PM
7:00 AM5:30 PM4:30 PM
8:00 AM6:30 PM5:30 PM
9:00 AM7:30 PM6:30 PM
10:00 AM8:30 PM7:30 PM
11:00 AM9:30 PM8:30 PM
12:00 PM10:30 PM9:30 PM
1:00 PM11:30 PM10:30 PM
2:00 PM12:30 AM+1 next day11:30 PM
3:00 PM1:30 AM+1 next day12:30 AM+1 next day
4:00 PM2:30 AM+1 next day1:30 AM+1 next day
5:00 PM3:30 AM+1 next day2:30 AM+1 next day
6:00 PM4:30 AM+1 next day3:30 AM+1 next day
7:00 PM5:30 AM+1 next day4:30 AM+1 next day
8:00 PM6:30 AM+1 next day5:30 AM+1 next day
9:00 PM7:30 AM+1 next day6:30 AM+1 next day
10:00 PM8:30 AM+1 next day7:30 AM+1 next day
11:00 PM9:30 AM+1 next day8:30 AM+1 next day
Each New York hour with the India time under EST and EDT. +1 marks the next calendar day in India.

Calling home from the East Coast

For family calls the easy window is the US evening. At 9:00 PM in New Jersey it is 7:30 AM the next morning in India in winter and 6:30 AM in summer, a good time to catch parents before their day starts. A Sunday morning call from the US, around 9:00 AM, reaches India on Sunday evening.

Avoid the middle of the US day if you want someone awake. Noon in New York is 10:30 PM in India in winter, and 2:00 PM is already past midnight there.

Do

  • For work, book 8:00 AM Eastern or earlier, when India is still in the office.
  • Repeat the India date in invites sent after 1:30 PM Eastern.

Avoid

  • Leaving a recurring meeting unchanged in March and November, when the gap moves by an hour.
  • Treating 'IST' as Irish or Israel time: this page is India Standard Time.

Why the gap shrinks in March

India uses UTC+5:30 nationwide and does not use daylight saving, as recorded in the IANA time zone database. The US East Coast moves forward one hour on the second Sunday in March and back on the first Sunday in November, which the US Department of Transportation oversees. Both periods are listed here:

  1. Dec 31, 2025 – Mar 8, 2026EST UTC−5 · IST UTC+5:30Difference: +10:30 h
  2. Mar 8, 2026 – Nov 1, 2026EDT UTC−4 · IST UTC+5:30Difference: +9:30 h
  3. Nov 1, 2026 – Mar 14, 2027EST UTC−5 · IST UTC+5:30Difference: +10:30 h
  4. Mar 14, 2027 – Nov 7, 2027EDT UTC−4 · IST UTC+5:30Difference: +9:30 h
  5. Nov 7, 2027 – Dec 31, 2027EST UTC−5 · IST UTC+5:30Difference: +10:30 h

Offsets in 2026 – 2027, from the IANA time zone data in your browser's engine

See the live Delhi clock, or try IST to EST for the opposite direction.

EST to IST questions

How many hours ahead of New York is India?

10 hours 30 minutes while New York is on EST (early November to mid-March) and 9 hours 30 minutes while it is on EDT (mid-March to early November).

What is 8:00 PM EST in India?

6:30 AM the next morning in India. In summer, 8:00 PM EDT is 5:30 AM the next morning.

When does a New York evening become the next day in India?

From 1:30 PM EST, or 2:30 PM EDT. Any later Eastern time falls on the following date in India.

What is the overlap between New York and Indian office hours?

Very little. 8:00 AM to 9:00 AM in New York is 6:30 PM to 7:30 PM in India in winter, or 5:30 PM to 6:30 PM in summer, at the very end of the Indian working day.

Why does the answer always end in :30?

India's offset is UTC+5:30, so every conversion from a whole-hour zone like Eastern Time shifts the minutes by 30.