EST to IST Converter

Eastern Standard Time → India Standard Time · EST is 10.5 hours behind IST

EST
—
IST
—

EST and IST are the same time

EST to IST Conversion Table

ESTIST
12:00 AM12:00 AM
1:00 AM1:00 AM
2:00 AM2:00 AM
3:00 AM3:00 AM
4:00 AM4:00 AM
5:00 AM5:00 AM
6:00 AM6:00 AM
7:00 AM7:00 AM
8:00 AM8:00 AM
9:00 AM9:00 AM
10:00 AM10:00 AM
11:00 AM11:00 AM
12:00 PM12:00 PM
1:00 PM1:00 PM
2:00 PM2:00 PM
3:00 PM3:00 PM
4:00 PM4:00 PM
5:00 PM5:00 PM
6:00 PM6:00 PM
7:00 PM7:00 PM
8:00 PM8:00 PM
9:00 PM9:00 PM
10:00 PM10:00 PM
11:00 PM11:00 PM

Green rows = business hours overlap (9:00 AM – 6:00 PM EST)

Major EST Cities
  • New York, NY
  • Boston, MA
  • Washington DC
  • Miami, FL
  • Atlanta, GA
  • Toronto, Canada
Major IST Cities
  • Mumbai
  • Delhi
  • Bangalore
  • Hyderabad
  • Chennai
  • Kolkata
Time Converter
Convert any two cities
Meeting Planner
Find the best overlap time
World Clock
Current time in 400+ cities

EST vs IST — What You Need to Know

Eastern Standard Time (EST) is UTC-5. New York, Boston, Washington DC, Miami, and Toronto observe EDT (UTC-4) from the second Sunday in March to the first Sunday in November.

India Standard Time (IST) is UTC+5:30. India never observes daylight saving time — IST is fixed year-round.

The 10.5-hour gap is the most workable US–India pairing. The overlap window is 8:00–11:00 AM EST = 6:30–9:30 PM IST. During EDT (summer), it improves further: 8:00 AM EDT = 5:30 PM IST — catching India late afternoon business hours.

New York is home to many Indian-American businesses and multinational companies coordinating with India offices. The relatively smaller time gap compared to PST makes EST the preferred US time zone for India collaboration.

DST note:

When the US enters EDT (March–November), clocks move forward 1 hour → gap becomes 9.5h. India stays at UTC+5:30 all year.

Frequently Asked Questions

How many hours behind is EST compared to IST?

EST (UTC-5) is 10 hours and 30 minutes behind IST (UTC+5:30) during US standard time. When the US observes EDT (UTC-4, March–November), the gap narrows to 9 hours and 30 minutes. India does not observe daylight saving time — IST is UTC+5:30 year-round.

When it is 9:00 AM EST, what time is it in India?

When it is 9:00 AM EST (UTC-5), it is 7:30 PM IST the same day. During EDT (UTC-4), 9:00 AM EDT = 6:30 PM IST. The US East Coast morning aligns with India late afternoon to evening, making this one of the more workable international time pairings.

What is the best time for a call between New York and India?

The best overlap is 8:00–11:00 AM EST, which corresponds to 6:30–9:30 PM IST — within India business evening hours. During EDT (summer), 8:00–11:00 AM EDT = 5:30–8:30 PM IST, an even better window. New York and India have the most workable overlap of any US time zone due to the smaller gap.

Is EST 10 or 11 hours behind IST?

EST (UTC-5) is 10 hours and 30 minutes (10.5 hours) behind IST (UTC+5:30). The 30-minute offset comes from India's use of UTC+5:30 rather than a round hour. During US daylight saving time (EDT, UTC-4), the gap is 9 hours and 30 minutes (9.5 hours).

Does India observe daylight saving time?

No. India Standard Time (IST) is UTC+5:30 year-round. India has never observed daylight saving time. The EST–IST gap changes only when the US switches clocks: 10.5 hours in winter (EST) and 9.5 hours in summer (EDT).