Convert time from IST to EST. Enter any time to see the equivalent EST time, compare current IST and EST times side by side, and find overlapping business hours for calls and meetings.
Use this IST to EST converter to compare India and US East Coast time, check the 10 hours and 30 minutes gap, and confirm the right slot for calls, handoffs, and deadlines. Find the best overlap for calls and meetings.
Converting between India Standard Time and Eastern Standard Time means accounting for a 10 hours and 30 minutes gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in India Standard Time (UTC +5:30) that you want to convert. Hit "Now" to load the current ist time instantly, or use "+1h" to step forward and compare.
The equivalent Eastern Standard Time (UTC -5) time appears immediately. Since est is 10 hours and 30 minutes behind of ist, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the est result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.
With 10 hours and 30 minutes between ist and est, business-hours overlap is limited. This tool instantly shows which hours work on both sides, so you can lock in a meeting without a chain of "does 3 PM work for you?" emails.
Late-night ist times can land on a different date in est because of the 10 hours and 30 minutes offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.
The half-hour offset between ist (UTC +5:30) and est (UTC -5) already makes mental math tricky — add Daylight Saving Time and the gap can shift further. This converter uses live UTC offsets, so you're always accurate.
Product launches, sports matches, and webinars are often announced in ist. Convert the event time to est so you know exactly when to tune in — with a 10 hours and 30 minutes difference, a morning event in India hits the evening in United States.
Quick-reference conversion table covering every hour of the day at a glance.
India Standard Time to Eastern Standard Time full day schedule
| India Standard Time | Eastern Standard Time |
|---|---|
| 12:00 AM |
1:30 PM
(previous day)
|
| 1:00 AM |
2:30 PM
(previous day)
|
| 2:00 AM |
3:30 PM
(previous day)
|
| 3:00 AM |
4:30 PM
(previous day)
|
| 4:00 AM |
5:30 PM
(previous day)
|
| 5:00 AM |
6:30 PM
(previous day)
|
| 6:00 AM |
7:30 PM
(previous day)
|
| 7:00 AM |
8:30 PM
(previous day)
|
| 8:00 AM |
9:30 PM
(previous day)
|
| 9:00 AM |
10:30 PM
(previous day)
|
| 10:00 AM |
11:30 PM
(previous day)
|
| 11:00 AM |
12:30 AM
|
| 12:00 PM |
1:30 AM
|
| 1:00 PM |
2:30 AM
|
| 2:00 PM |
3:30 AM
|
| 3:00 PM |
4:30 AM
|
| 4:00 PM |
5:30 AM
|
| 5:00 PM |
6:30 AM
|
| 6:00 PM |
7:30 AM
|
| 7:00 PM |
8:30 AM
|
| 8:00 PM |
9:30 AM
|
| 9:00 PM |
10:30 AM
|
| 10:00 PM |
11:30 AM
|
| 11:00 PM |
12:30 PM
|
Mirror of the top zone conversion. IST is 9.5 h ahead of EST (10.5 h ahead of EDT). Same daily overlap window (7-8:30 PM IST = 8:30-10 AM ET) works both directions. Payment cutoffs across the US-India banking corridor are usually anchored to US East Coast time, so wire-transfer deadlines quoted as "5 PM ET" fall at 2:30 AM IST next day.
Indian business hours run 10 AM – 7 PM IST typically; IT / BPO shifts commonly extend to cover US and UK working hours, so 3:30 PM – 12:30 AM IST (US overlap) and 12:30 PM – 9 PM IST (UK overlap) are the two second shifts you see most often. Weekend is Saturday-Sunday for most private-sector employers.
US East Coast — the reference clock for US business, Wall Street, US law and consulting firms, most Fortune 500 HQ. Business hours 9 AM – 6 PM ET. Note: EST is the winter offset (UTC-5); EDT (UTC-4) is the summer offset — "ET" is the year-round non-committal way to refer to this zone in scheduling apps.
Time gap: EST is 10.5 hours behind IST (standard-time offsets — daylight-saving flips shift this by an hour twice a year in most northern-hemisphere zones).
Explore more ist conversions for major business and travel corridors. Each page includes a 24-hour chart, time difference summary, and meeting overlap guidance.
Find the time difference from any major zone into Eastern Standard Time. Use these pages when scheduling with United States from a different region.
