VesperalbaConvert IST to EST
India Standard Time (UTC+5:30) never changes. US Eastern Time is EST (UTC−5) in winter and EDT (UTC−4) in summer, so IST is 10½ hours ahead of New York from November to March and 9½ the rest of the year.
“IST” also stands for Irish Standard Time and Israel Standard Time. This page is about India.
Noon IST
12:00 PM IST = 1:30 AM EST
Other times of year: 2:30 AM EDT (31 Oct–1 Nov, 14 Mar–30 Oct).
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IST to EST, hour by hour
IST → EST: 1 Nov–14 Mar · IST → EDT: 31 Oct–1 Nov, 14 Mar–30 Oct
| IST | IST → EST | IST → EDT |
|---|---|---|
| 12:00 AM | 1:30 PM −1 day | 2:30 PM −1 day |
| 1:00 AM | 2:30 PM −1 day | 3:30 PM −1 day |
| 2:00 AM | 3:30 PM −1 day | 4:30 PM −1 day |
| 3:00 AM | 4:30 PM −1 day | 5:30 PM −1 day |
| 4:00 AM | 5:30 PM −1 day | 6:30 PM −1 day |
| 5:00 AM | 6:30 PM −1 day | 7:30 PM −1 day |
| 6:00 AM | 7:30 PM −1 day | 8:30 PM −1 day |
| 7:00 AM | 8:30 PM −1 day | 9:30 PM −1 day |
| 8:00 AM | 9:30 PM −1 day | 10:30 PM −1 day |
| 9:00 AM | 10:30 PM −1 day | 11:30 PM −1 day |
| 10:00 AM | 11:30 PM −1 day | 12:30 AM |
| 11:00 AM | 12:30 AM | 1:30 AM |
| 12:00 PM | 1:30 AM | 2:30 AM |
| 1:00 PM | 2:30 AM | 3:30 AM |
| 2:00 PM | 3:30 AM | 4:30 AM |
| 3:00 PM | 4:30 AM | 5:30 AM |
| 4:00 PM | 5:30 AM | 6:30 AM |
| 5:00 PM | 6:30 AM | 7:30 AM |
| 6:00 PM | 7:30 AM | 8:30 AM |
| 7:00 PM | 8:30 AM | 9:30 AM |
| 8:00 PM | 9:30 AM | 10:30 AM |
| 9:00 PM | 10:30 AM | 11:30 AM |
| 10:00 PM | 11:30 AM | 12:30 PM |
| 11:00 PM | 12:30 PM | 1:30 PM |
Daylight saving time: the next clock changes
- India: no clock changes (no daylight saving time).
- New York: Sun, 1 Nov 2026: at 2:00 AM clocks go back to 1:00 AM (EDT → EST, UTC−5); Sun, 14 Mar 2027: at 2:00 AM clocks go forward to 3:00 AM (EST → EDT, UTC−4)
Good to know
- Indian evening 7:30 PM IST is 9:00 AM EST in winter, 10:00 AM EDT in summer: the most common slot for India–US calls.
- Subtract 10½ hours in winter and 9½ in summer. The half hour stays.
Questions
How many hours is EST behind IST?
10 hours 30 minutes for most of the year (EST). 9 hours 30 minutes behind while it is EDT (31 Oct–1 Nov, 14 Mar–30 Oct).
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