Enter the time
Pick the date and the time; the source zone is already set.
EST to IST converter
Enter a date and a time and see it converted from Eastern Time (New York) to India Standard Time (Mumbai, Delhi). Daylight saving is handled for you, so the result is right on any date of the year.
- Free
- No sign-up
- Runs in your browser
100% private — the calculation is done in your browser and nothing is sent to any server.
Next step
Keep going with your result in another tool. Nothing is uploaded.
How it works
Read the result
The converted time appears with its date and UTC offset.
Add more zones
Compare up to four target zones at once.
How to convert EST to IST
To convert EST to IST, add 10 hours 30 minutes in winter and 9 hours 30 minutes in summer. For example, when it is 12:00 noon in Eastern Time (New York) it is 10:30 PM in India Standard Time (Mumbai, Delhi) in winter and 9:30 PM in summer. In the converter above the source and target zones are already selected: enter a date and a time and the result appears at once.
The two zones
Eastern Time covers New York, Washington, Miami, Atlanta, Boston and Toronto. It is Eastern Standard Time (EST, UTC−5) in winter and Eastern Daylight Time (EDT, UTC−4) in summer, so people often write ET for both.
India Standard Time is UTC+5:30 all year, with no daylight saving. The half hour offset surprises many people, since most zones differ from UTC by whole hours.
The difference between EST and IST
India has no daylight saving, so the gap is 10 hours 30 minutes in winter and 9 hours 30 minutes when New York is on summer time. Winter offset: 10 hours 30 minutes ahead. Summer offset: 9 hours 30 minutes ahead.
EST to IST quick reference
| Source time | Winter (15 January) | Summer (15 July) |
|---|---|---|
| 6:00 AM | 4:30 PM | 3:30 PM |
| 9:00 AM | 7:30 PM | 6:30 PM |
| 12:00 PM | 10:30 PM | 9:30 PM |
| 3:00 PM | 1:30 AM (+1 day) | 12:30 AM (+1 day) |
| 6:00 PM | 4:30 AM (+1 day) | 3:30 AM (+1 day) |
| 9:00 PM | 7:30 AM (+1 day) | 6:30 AM (+1 day) |
When you need it
- Setting calls between the US East Coast and India, a common outsourcing pair.
- Working out when a customer in Bangalore or Delhi is at work.
- Timing cricket matches and Indian events from New York.
Avoiding time zone mistakes
- Always say the date as well as the time: a late evening in one zone is already tomorrow in another.
- Prefer city names (New York, Los Angeles) to abbreviations; EST and EDT are different, and many people write EST all year.
- For international meetings, send the time in UTC or add a link to a converter so everyone sees their own time.
Private by design
The conversion uses your browser's own time zone database, so nothing you enter is sent anywhere.
Frequently asked questions
How many hours is IST from EST?
IST is 10 hours 30 minutes ahead of EST in winter and 9 hours 30 minutes in summer.
Does daylight saving change the difference?
Yes. The clocks of the two places change on different dates or not at all, so the difference moves by an hour for part of the year.
What time is 9:00 AM EST in IST?
It is 7:30 PM in winter and 6:30 PM in summer.
Which zone is used for the source?
The converter uses the zone selected as the source, here Eastern Time (New York), and applies its daylight saving rules for the date you enter.
Is this converter free?
Yes. There is no sign-up and no limit, and it runs in your browser, so nothing you type is sent to a server.
Does it work on a phone?
Yes. It works in any modern mobile browser, and the result updates as you type.
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