IST to EST/EDT Converter
Convert Indian Standard Time (IST) to Eastern Time (EST/EDT). IST is 10.5 hours ahead of EST and 9.5 hours ahead of EDT. Free timezone tool for distributed teams.
Built by Michael Lip
Frequently Asked Questions
What is the time difference between IST and EST?
IST is 10 hours and 30 minutes ahead of EST. During EDT (summer), the gap shrinks to 9 hours and 30 minutes. For example, 20:00 IST is 09:30 EST (winter) or 10:30 EDT (summer).
What are good meeting times between India and the US East Coast?
The best overlap window is 08:00-10:30 AM EST (18:30-21:00 IST during winter) or 08:30-11:00 AM EDT (18:00-20:30 IST during summer). Morning standup in New York at 9:00 AM ET falls at 7:30 PM IST in winter or 6:30 PM IST in summer.
Does IST observe Daylight Saving Time?
No. India does not observe DST, so IST is always UTC+5:30. The time difference between IST and Eastern Time changes only because the US switches between EST (UTC-5) and EDT (UTC-4). The gap is 10.5 hours in winter and 9.5 hours in summer.
How do I convert EST to IST?
Add 10 hours and 30 minutes to EST to get IST. For EDT, add 9 hours and 30 minutes. For example, 14:00 EST = 00:30 IST (next day). Use our IST to UTC and EST to UTC converters together for precise scheduling.
Is this tool free?
Yes. All EpochPilot tools are free, run in your browser, and require no signup or account.
How It Works
This converter bridges the two most common timezones for India-US development teams: Asia/Kolkata (IST, UTC+5:30) and America/New_York (EST/EDT). It uses the browser's Intl.DateTimeFormat API to handle the US DST transitions automatically while keeping IST fixed year-round.
India is the world's largest source of offshore software development talent, and the US East Coast (New York, Boston, Washington D.C.) is the primary business hub. The 10.5-hour gap makes same-day collaboration challenging, which is why teams typically schedule standups in the narrow overlap window of 8:00-10:30 AM Eastern.
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Privacy
Everything runs locally in your browser. No data is transmitted to any server. Source code is open on GitHub.
Contact
EpochPilot is built by Michael Lip. Email [email protected] for feedback.