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IST to KST Time Converter

Convert time from IST to KST. Enter any time to see the equivalent KST time, compare current IST and KST times side by side, and find overlapping business hours for calls and meetings.

ist India Standard Time
...
kst Korea Standard Time
...
Select a time to convert

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.

Time Difference
Korea Standard Time is 3 hours and 30 minutes ahead of India Standard Time
Useful when deadlines, handoffs, or calls cross workday boundaries.
Best Call Window
Best overlap starts around 9:00 AM ist and 12:30 PM kst.
Common Use Cases
Useful for remote teams, customer support windows, travel planning, webinars, and same-day deadline handoffs.

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.

Enter Your ist Time

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.

Read the kst Result

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.

Copy or Fine-Tune

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

Align ist–kst Meetings Instantly

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.

Spot Date-Line Shifts at a Glance

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.

Handles DST Transitions Automatically

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.

Never Miss a ist-Timed Event

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.

Complete 24-Hour Conversion

India Standard Time to Korea Standard Time full day schedule

12:00 AM
ist
→
3:30 AM
kst
1:00 AM
ist
→
4:30 AM
kst
2:00 AM
ist
→
5:30 AM
kst
3:00 AM
ist
→
6:30 AM
kst
4:00 AM
ist
→
7:30 AM
kst
5:00 AM
ist
→
8:30 AM
kst
6:00 AM
ist
→
9:30 AM
kst
7:00 AM
ist
→
10:30 AM
kst
8:00 AM
ist
→
11:30 AM
kst
9:00 AM
ist
→
12:30 PM
kst
10:00 AM
ist
→
1:30 PM
kst
11:00 AM
ist
→
2:30 PM
kst
12:00 PM
ist
→
3:30 PM
kst
1:00 PM
ist
→
4:30 PM
kst
2:00 PM
ist
→
5:30 PM
kst
3:00 PM
ist
→
6:30 PM
kst
4:00 PM
ist
→
7:30 PM
kst
5:00 PM
ist
→
8:30 PM
kst
6:00 PM
ist
→
9:30 PM
kst
7:00 PM
ist
→
10:30 PM
kst
8:00 PM
ist
→
11:30 PM
kst
9:00 PM
ist
→
12:30 AM
kst
(next day)
10:00 PM
ist
→
1:30 AM
kst
(next day)
11:00 PM
ist
→
2:30 AM
kst
(next day)
The two zones in context

IST vs KST — cities and working rhythm

IST — India Standard Time
Primary cities: Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata

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.

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.

🌍 Swap direction — KST to IST Converter