IST to EST Converter
EST is 9 hours and 30 minutes behind IST · EST → IST
Current offset note
The live clocks use today's IANA timezone rules. Right now IST is displaying as GMT+5:30 (UTC+05:30) and EST is displaying as EDT (UTC-04:00), so this table reflects the current real-world offset.
Meeting planner for IST and EST
Use these notes for recurring calls, handoffs, webinars, and launch timing across both zones.
Current difference
EST is 9 hours and 30 minutes behind IST using the current offsets shown by the live clocks.
Workday overlap
There is no standard 9 AM-5 PM overlap, so one side needs an early or late call window.
Recurring meetings
If either zone changes for daylight saving time, recheck the conversion before March-April and October-November meetings.
Quick Reference
| IST | EST |
|---|---|
| Midnight (00:00) | 2:30 PM |
| 6 AM (06:00) | 8:30 PM |
| 9 AM (09:00) | 11:30 PM |
| Noon (12:00) | 2:30 AM |
| 3 PM (15:00) | 5:30 AM |
| 6 PM (18:00) | 8:30 AM |
| 9 PM (21:00) | 11:30 AM |
IST to EST Conversion Table
Green rows indicate overlapping business hours (9 AM – 5 PM) in both zones
| IST (24h) | IST (12h) | EST (24h) | EST (12h) | |
|---|---|---|---|---|
| 00:00 | 12:00 AM | 14:30 | 2:30 PM | prev day |
| 01:00 | 1:00 AM | 15:30 | 3:30 PM | prev day |
| 02:00 | 2:00 AM | 16:30 | 4:30 PM | prev day |
| 03:00 | 3:00 AM | 17:30 | 5:30 PM | prev day |
| 04:00 | 4:00 AM | 18:30 | 6:30 PM | prev day |
| 05:00 | 5:00 AM | 19:30 | 7:30 PM | prev day |
| 06:00 | 6:00 AM | 20:30 | 8:30 PM | prev day |
| 07:00 | 7:00 AM | 21:30 | 9:30 PM | prev day |
| 08:00 | 8:00 AM | 22:30 | 10:30 PM | prev day |
| 09:00 | 9:00 AM | 23:30 | 11:30 PM | prev day |
| 10:00 | 10:00 AM | 00:30 | 12:30 AM | |
| 11:00 | 11:00 AM | 01:30 | 1:30 AM | |
| 12:00 | 12:00 PM | 02:30 | 2:30 AM | |
| 13:00 | 1:00 PM | 03:30 | 3:30 AM | |
| 14:00 | 2:00 PM | 04:30 | 4:30 AM | |
| 15:00 | 3:00 PM | 05:30 | 5:30 AM | |
| 16:00 | 4:00 PM | 06:30 | 6:30 AM | |
| 17:00 | 5:00 PM | 07:30 | 7:30 AM | |
| 18:00 | 6:00 PM | 08:30 | 8:30 AM | |
| 19:00 | 7:00 PM | 09:30 | 9:30 AM | |
| 20:00 | 8:00 PM | 10:30 | 10:30 AM | |
| 21:00 | 9:00 PM | 11:30 | 11:30 AM | |
| 22:00 | 10:00 PM | 12:30 | 12:30 PM | |
| 23:00 | 11:00 PM | 13:30 | 1:30 PM |
About IST and EST
IST — India Standard Time
| UTC offset | UTC+05:30 |
| IANA identifier | Asia/Kolkata |
| Abbreviation | IST |
Major cities: Mumbai, Delhi, Bengaluru, Hyderabad, Ahmedabad, Chennai, Kolkata, Pune.
EST — Eastern Standard Time
| UTC offset | UTC-04:00 |
| IANA identifier | America/New_York |
| Abbreviation | EST |
Major cities: New York City.
Frequently Asked Questions
What is the time difference between IST and EST?
IST (India Standard Time) is UTC+05:30, while EST (Eastern Standard Time) is UTC-04:00. EST is 9 hours and 30 minutes behind IST. When it’s 12:00 PM (noon) in IST, it’s 2:30 AM in EST.
When is 9 AM IST in EST?
9:00 AM IST is 11:30 PM EST (prev day). This conversion is useful for scheduling morning meetings or calls across these time zones.
What is the best time to schedule a call between IST and EST?
There are no overlapping standard business hours (9 AM – 5 PM) between IST and EST. One party will need to adjust their schedule. Early morning or late evening calls are typically the best compromise.
Does daylight saving time affect the IST to EST conversion?
Yes, if either time zone observes DST, the offset between them may change by 1 hour during spring and autumn transitions (typically March/April and October/November). The table above shows the current offset. Use the live clocks at the top of this page for real-time accuracy, or check our interactive converter for custom dates.
How do I convert IST to EST manually?
Subtract 9 hours and 30 minutes from the IST time. For example, 2:00 PM IST − 9 hours and 30 minutes = 4:30 AM EST. If the result is 24 or more, subtract 24 and add one day. If negative, add 24 and subtract one day.