Time zone converter

IST to KST

Korea Standard Time (KST) is 3 hours 30 minutes ahead of India Standard Time (IST) all year: 9:00 AM IST is 12:30 PM KST.

India Standard Time
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Current time in India Standard Time
Korea Standard Time
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Current time in Korea Standard Time
Pick a date and time to convert.

KST vs IST over the next 12 months

PeriodKST isExample
Oct 23, 2026 onwards3 hours 30 minutes ahead9:00 AM IST = 12:30 PM KST

IST to KST conversion table

Every hour of a weekday around Oct 23, 2026, in both zones.

India Standard TimeKorea Standard Time
12:00 AM3:30 AM
1:00 AM4:30 AM
2:00 AM5:30 AM
3:00 AM6:30 AM
4:00 AM7:30 AM
5:00 AM8:30 AM
6:00 AM9:30 AM
7:00 AM10:30 AM
8:00 AM11:30 AM
9:00 AM12:30 PM
10:00 AM1:30 PM
11:00 AM2:30 PM
12:00 PM3:30 PM
1:00 PM4:30 PM
2:00 PM5:30 PM
3:00 PM6:30 PM
4:00 PM7:30 PM
5:00 PM8:30 PM
6:00 PM9:30 PM
7:00 PM10:30 PM
8:00 PM11:30 PM
9:00 PM12:30 AM (next day)
10:00 PM1:30 AM (next day)
11:00 PM2:30 AM (next day)

Best time for a meeting

Normal 9-to-5 working hours overlap for 4 hours 30 minutes on a weekday: 9:00 AM–1:30 PM IST, which is 12:30 PM–5:00 PM KST.

Comparing more than two places? The meeting planner lines up working hours for up to six cities.

Daylight saving time

Neither IST nor KST changes its clocks, so the difference is the same all year.

Where these clocks are used

  • India Standard Time (IST): all of India: Mumbai, Delhi, Bengaluru, Chennai. IANA zone Asia/Kolkata.
  • Korea Standard Time (KST): Seoul, Busan. IANA zone Asia/Seoul.

Questions

What time is it in KST when it is 9 AM IST?

On Oct 23, 2026, 9:00 AM IST is 12:30 PM KST.

How many hours ahead of IST is KST?

KST is always 3 hours 30 minutes ahead of IST.

Do IST and KST observe daylight saving time?

India Standard Time stays on UTC+5:30 all year. Korea Standard Time stays on UTC+9 all year.

What is the best time for a meeting between IST and KST?

Normal 9-to-5 working hours overlap for 4 hours 30 minutes on a weekday: 9:00 AM–1:30 PM IST, which is 12:30 PM–5:00 PM KST.

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Related conversions

Computed from the IANA time zone database on Oct 23, 2026. Live clocks and the converter use your browser's copy of the same data.