IST vs EST
India Standard Time (IST) is UTC+5:30 year-round. Eastern Time (US & Canada) (EST/EDT) is UTC−5 in winter and UTC−4 in summer.
Because Eastern Time (US & Canada) observes daylight saving and the other zone does not, the gap changes during the year: 10.5 hours behind in the northern winter and 9.5 hours behind in summer, with a few weeks in spring and autumn where it's an hour different again. The converter uses the exact rules for the date you choose.
IST to EST conversion table
Summer (daylight saving) times, mid-July:
| IST | EST/EDT |
|---|---|
| 12:00 AM | 2:30 PM (−1 day) |
| 6:00 AM | 8:30 PM (−1 day) |
| 8:00 AM | 10:30 PM (−1 day) |
| 9:00 AM | 11:30 PM (−1 day) |
| 10:00 AM | 12:30 AM |
| 12:00 PM | 2:30 AM |
| 2:00 PM | 4:30 AM |
| 3:00 PM | 5:30 AM |
| 5:00 PM | 7:30 AM |
| 6:00 PM | 8:30 AM |
| 8:00 PM | 10:30 AM |
| 10:00 PM | 12:30 PM |
Winter (standard) times, mid-January:
| IST | EST |
|---|---|
| 12:00 AM | 1:30 PM (−1 day) |
| 6:00 AM | 7:30 PM (−1 day) |
| 8:00 AM | 9:30 PM (−1 day) |
| 9:00 AM | 10:30 PM (−1 day) |
| 10:00 AM | 11:30 PM (−1 day) |
| 12:00 PM | 1:30 AM |
| 2:00 PM | 3:30 AM |
| 3:00 PM | 4:30 AM |
| 5:00 PM | 6:30 AM |
| 6:00 PM | 7:30 AM |
| 8:00 PM | 9:30 AM |
| 10:00 PM | 11:30 AM |
Scheduling between IST and EST
With 9.5 hours between them there is little or no overlap in normal working hours; one side will be early morning or evening. 8 AM IST is 10:30 PM EST (−1 day), and 6 PM IST is 8:30 AM EST. Always write the city alongside the abbreviation in invites — several abbreviations (CST, IST, AST) are used by more than one region.
Related conversions
PST to EST · EST to PST · CST to EST · EST to CST · MST to EST · EST to MST · EST to AST · AST to EST · UTC to EST · EST to UTC · all zones