Time zone converter

UTC to KST

Korea Standard Time (KST) is 9 hours ahead of Coordinated Universal Time (UTC) all year: 9:00 AM UTC is 6:00 PM KST.

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

KST vs UTC over the next 12 months

PeriodKST isExample
Oct 23, 2026 onwards9 hours ahead9:00 AM UTC = 6:00 PM KST

UTC to KST conversion table

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

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

Best time for a meeting

There is no 9-to-5 overlap; within an 8 AM–8 PM day the zones overlap for 3 hours on a weekday: 8:00 AM–11:00 AM UTC, which is 5:00 PM–8:00 PM KST.

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

Daylight saving time

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

Where these clocks are used

  • Coordinated Universal Time (UTC): servers, aviation and logs worldwide; the same clock as GMT. IANA zone Etc/UTC.
  • Korea Standard Time (KST): Seoul, Busan. IANA zone Asia/Seoul.

Questions

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

On Oct 23, 2026, 9:00 AM UTC is 6:00 PM KST.

How many hours ahead of UTC is KST?

KST is always 9 hours ahead of UTC.

Do UTC and KST observe daylight saving time?

Coordinated Universal Time stays on UTC±0 all year. Korea Standard Time stays on UTC+9 all year.

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

There is no 9-to-5 overlap; within an 8 AM–8 PM day the zones overlap for 3 hours on a weekday: 8:00 AM–11:00 AM UTC, which is 5:00 PM–8:00 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.