IST to KST Time Converter
Use this IST to KST time converter to compare India and South Korea time instantly. KST is 3 hours and 30 minutes ahead of IST, so 9:00 AM IST becomes 12:30 PM KST and 5:00 PM IST becomes 8:30 PM KST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
IST to KST Quick Facts
Use this IST to KST converter to compare India and South Korea time, check the 3 hours and 30 minutes gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM IST / 12:30 PM KST.
How to Convert IST to KST
Converting between India Standard Time and Korea Standard Time means accounting for a 3 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 Korea Standard Time (UTC +9) time appears immediately. Since KST is 3 hours and 30 minutes ahead of IST, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the KST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.
Why Choose Our IST to KST Converter
When someone in India suggests 9:00 AM IST, that's 12:30 PM KST. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night IST times can land on a different date in KST because of the 3 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 KST (UTC +9) 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 KST so you know exactly when to tune in — with a 3 hours and 30 minutes difference, a morning event in India falls during work hours in South Korea.
IST to KST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
India Standard Time to Korea Standard Time full day schedule
| India Standard Time | Korea Standard Time |
|---|---|
| 12:00 AM |
3:30 AM
|
| 1:00 AM |
4:30 AM
|
| 2:00 AM |
5:30 AM
|
| 3:00 AM |
6:30 AM
|
| 4:00 AM |
7:30 AM
|
| 5:00 AM |
8:30 AM
|
| 6:00 AM |
9:30 AM
|
| 7:00 AM |
10:30 AM
|
| 8:00 AM |
11:30 AM
|
| 9:00 AM |
12:30 PM
|
| 10:00 AM |
1:30 PM
|
| 11:00 AM |
2:30 PM
|
| 12:00 PM |
3:30 PM
|
| 1:00 PM |
4:30 PM
|
| 2:00 PM |
5:30 PM
|
| 3:00 PM |
6:30 PM
|
| 4:00 PM |
7:30 PM
|
| 5:00 PM |
8:30 PM
|
| 6:00 PM |
9:30 PM
|
| 7:00 PM |
10:30 PM
|
| 8:00 PM |
11:30 PM
|
| 9:00 PM |
12:30 AM
(next day)
|
| 10:00 PM |
1:30 AM
(next day)
|
| 11:00 PM |
2:30 AM
(next day)
|
Popular IST Time Converters
Explore more IST conversions for major business and travel corridors. Each page includes a 24-hour chart, time difference summary, and meeting overlap guidance.
Convert Other Time Zones to KST
Find the time difference from any major zone into Korea Standard Time. Use these pages when scheduling with South Korea from a different region.