KST (Seoul) to IST (Kolkata) Time Converter

Convert time between KST (Seoul) and IST (Kolkata)

Live updates
09:13 PM→05:43 PM
IST (Kolkata) is 3h 30m behind of KST (Seoul)

From

KST (Seoul)

City:
Seoul
Country:
South Korea
UTC Offset:
UTC+9
Local Time:
09:13 PMNight

To

IST (Kolkata)

City:
Kolkata
Country:
India
UTC Offset:
UTC+5:30
Local Time:
05:43 PMEvening

Time Analysis

Smart Insights

Best time to call

KST (Seoul) morning

IST (Kolkata) is sleeping

Working hours overlap

6 hours

9 AM - 5 PM window

24-Hour Comparison

Quick reference for the full day

UTC → KST (Seoul) → IST (Kolkata)

KST (Seoul) Business Hours

Business Hours: 9:00 AM - 5:00 PM (UTC +09:00)

IST (Kolkata) Business Hours

Business Hours: 9:00 AM - 5:00 PM (UTC +05:30)

Best time to schedule meetings: When both timezones are in business hours (9 AM - 5 PM)

KST (Seoul) is 3h 30m ahead of IST (Kolkata)

UTC
KST (Seoul)9AM-5PM
IST (Kolkata)9AM-5PM
00:00Aug 25
09:00Aug 25
05:30Aug 25
01:00Aug 25
10:00Aug 25
06:30Aug 25
02:00Aug 25
11:00Aug 25
07:30Aug 25
03:00Aug 25
12:00Aug 25
08:30Aug 25
04:00Aug 25
13:00Aug 25
09:30Aug 25
05:00Aug 25
14:00Aug 25
10:30Aug 25
06:00Aug 25
15:00Aug 25
11:30Aug 25
07:00Aug 25
16:00Aug 25
12:30Aug 25
08:00Aug 25
17:00Aug 25
13:30Aug 25
09:00Aug 25
18:00Aug 25
14:30Aug 25
10:00Aug 25
19:00Aug 25
15:30Aug 25
11:00Aug 25
20:00Aug 25
16:30Aug 25
12:00NowAug 25
21:00Aug 25
17:30Aug 25
13:00Aug 25
22:00Aug 25
18:30Aug 25
14:00Aug 25
23:00Aug 25
19:30Aug 25
15:00Aug 25
00:00 (next day)Aug 26
20:30Aug 25
16:00Aug 25
01:00 (next day)Aug 26
21:30Aug 25
17:00Aug 25
02:00 (next day)Aug 26
22:30Aug 25
18:00Aug 25
03:00 (next day)Aug 26
23:30Aug 25
19:00Aug 25
04:00 (next day)Aug 26
00:30 (next day)Aug 26
20:00Aug 25
05:00 (next day)Aug 26
01:30 (next day)Aug 26
21:00Aug 25
06:00 (next day)Aug 26
02:30 (next day)Aug 26
22:00Aug 25
07:00 (next day)Aug 26
03:30 (next day)Aug 26
23:00Aug 25
08:00 (next day)Aug 26
04:30 (next day)Aug 26
Current UTC hour
Overlap (Both 9AM-5PM)
KST (Seoul) only
IST (Kolkata) only
Overlap dot
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Frequently Asked Questions

About KST (Seoul) to IST (Kolkata) time conversion

General Questions

IST (Kolkata)is3 hours and 30 minutesbehindKST (Seoul)

KST (Seoul)

12:00 AM

IST (Kolkata)

8:30 PM

Conversely, when it is 12:00 AM in IST (Kolkata), it is 3:30 AM in KST (Seoul).

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