conversions
IST to EST Converter
Last updated: May 31, 2026
Written by Blake Boege
An IST to EST timezone converter maps time offsets between India Standard Time and the US Eastern zone, tracking daylight saving changes.
Convert India Standard Time (IST) to Eastern Time (EST/EDT). Check current time zones, offsets, and view the hourly conversion table.
Quick Answer
Convert India Standard Time (IST) to Eastern Time (EST/EDT). IST is 9.5 or 10.5 hours ahead of Eastern Time depending on US daylight saving status.
Convert time from IST
Current Live Offset: EST is 9.5 hours behind IST.
Select any custom hour or date above to compute the corresponding time in EST.
Time in EST (EST)
1:02 AM
Sunday, May 31, 2026
IST to EDT Time Conversion Table
| Time in IST | Time in EDT |
|---|---|
| 12:00 AM | sm2:30 PMsm (smMay 30) |
| 3:00 AM | sm5:30 PMsm (smMay 30) |
| 6:00 AM | sm8:30 PMsm (smMay 30) |
| 9:00 AM | sm11:30 PMsm (smMay 30) |
| 12:00 PM | sm2:30 AMsm |
| 3:00 PM | sm5:30 AMsm |
| 6:00 PM | sm8:30 AMsm |
| 9:00 PM | sm11:30 AMsm |
How it works
To convert time from IST (India Standard Time (IST)) to EDT (Eastern Standard Time (EST) / Eastern Daylight Time (EDT)), calculate the offset difference between the two timezones.
Current Timezone Offset
smEDT is sm9.5 hoursms behind smIST.
Calculation Rules
Formula: Time in EDT = Time in IST - 9.5 hours
Current Time Offset between IST and EST
The current relationship between India Standard Time (IST) and Eastern Standard Time (EST) / Eastern Daylight Time (EDT) is that smEDT is sm9.5 hoursms behind smIST. The offsets dynamically update depending on whether Daylight Saving Time (DST) is active in the United States.
How to convert IST to EST
To convert any local time between these zones, find the offset difference and shift the hours accordingly. If you cross a midnight boundary, the calendar date will shift forward or backward by one day.
Why Times Differ Between Regions
Time zones are structured based on longitudinal divisions around the globe, with solar noon aligning roughly with 12:00 PM local time. Daylight saving policies cause offsets to shift.
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Frequently asked questions
Currently, smsmEDT is sm9.5 hoursms behind smIST. For example, when it is 12:00 PM in smIST, it is sm2.5:00 smAM in smEDT.
Yes. Because IST does not observe Daylight Saving Time, while the corresponding US timezone does, the offset changes by 1 hour twice a year when the US shifts between Standard Time and Daylight Saving Time.
To convert smIST to smEDT, you simply smsubtract sm9.5 hoursms smfrom the current smIST time. For example, if it is 3:00 PM smIST, you smsubtract sm9.5 hoursms to get sm5.5:00 PM in smEDT.
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