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Timezone Conversion Hub

KST to IST Time Converter

IST (India Standard Time) is exactly 3 hours and 30 minutes behind KST (Korea Standard Time). Calculate overlapping business hours and find the best time to schedule cross-timezone calls between KST and IST.

Quick Answer: IST (India Standard Time) is exactly 3 hours and 30 minutes behind KST (Korea Standard Time). When it is 12:00 PM (Noon) in KST, it is 8:30 AM in IST. Optimal business overlap: 4.5 mutual working hours.
Source Timezone

KST — Korea Standard Time

UTC +9
Sunday, October 11, 2026
01:21:40
IANA: Asia/Seoul
DST: Fixed StandardKey Hub: South Korea
Destination Timezone

IST — India Standard Time

UTC +5:30
Saturday, October 10, 2026
21:51:40
IANA: Asia/Kolkata
Differential: 3 hours 30 minutes behindKey Hub: India
Instant Direction Toggle: Need to view the inverse time difference?
Convert IST to KST instead

Interactive Multi-Zone Visual Grid

Hover or drag across the hours to align schedules, discover business overlaps, and click to schedule.

Interactive Multi–Zone Visual Grid

Hover or drag across the hours to align schedules, discover business overlaps, and click to schedule.

Saturday, October 10, 2026
Business Hours (9am – 6pm)Shoulder HoursNight / SleepOverlap Window
Click any hour tile to select & schedule
Location & Timezone
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KST

South Korea, North Korea

• UTC +901:21:40 AM
12
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08
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IST

India, Sri Lanka

• UTC +5:3009:51:40 PM
08
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Saturday, October 10, 2026 • Selected Hour
04:00 PMKST12:30 PMIST
Best International Meeting Overlap|Limited standard working overlap. Consider early morning or evening slots.
Quick Timezone Converter Selector

Jump to any of the 552 international timezone converter combinations in one click:

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Complete 24-Hour Conversion Table: KST to IST

Hour-by-hour cross-reference table for scheduling calls, webinars, and international broadcasts.

09:00 KST
05:30 IST
10:00 KST
06:30 IST
11:00 KST
07:30 IST
12:00 KST
08:30 IST
13:00 KST
09:30 IST
14:00 KST
10:30 IST
15:00 KST
11:30 IST
16:00 KST
12:30 IST
17:00 KST
13:30 IST
18:00 KST
14:30 IST
19:00 KST
15:30 IST
20:00 KST
16:30 IST
21:00 KST
17:30 IST
22:00 KST
18:30 IST
23:00 KST
19:30 IST
24:00 KST
20:30 IST
01:00 KST
21:30 IST
02:00 KST
22:30 IST
03:00 KST
23:30 IST
04:00 KST
24:30 IST
05:00 KST
01:30 IST
06:00 KST
02:30 IST
07:00 KST
03:30 IST
08:00 KST
04:30 IST
Quick Hourly Reference Table

KST to IST Hourly Conversion Chart (KST vs IST)

Instant hour-by-hour reference table for common meeting times, morning calls, and evening handoffs between KST (Korea Standard Time) and IST (India Standard Time).

KST Time (Korea Standard Time)IST Time (India Standard Time)
8:00 AM KST4:30 AM IST
9:00 AM KST5:30 AM IST
10:00 AM KST6:30 AM IST
11:00 AM KST7:30 AM IST
12:00 PM KST8:30 AM IST
1:00 PM KST9:30 AM IST
2:00 PM KST10:30 AM IST
3:00 PM KST11:30 AM IST
4:00 PM KST12:30 PM IST
5:00 PM KST1:30 PM IST
6:00 PM KST2:30 PM IST
7:00 PM KST3:30 PM IST
8:00 PM KST4:30 PM IST

Frequently Asked Questions: KST to IST Time Conversion

Common queries, time calculations, and scientific explanations

IST (India Standard Time) is exactly 3 hours and 30 minutes behind KST (Korea Standard Time).

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