World Timezones

KST to UTC Converter

Compare UTC to KST instead
Korea Standard Time1:36 pmFri, Jun 5
Korea Standard TimeKST
Asia · UTC+9
1:36 pmFri, Jun 5
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Coordinated Universal TimeUTC
Global · UTC
4:36 amFri, Jun 5
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Offset

The time difference between Korea Standard Time and Coordinated Universal Time is 9 hours.

9 hours

Korea Standard Time (KST) is ahead of Coordinated Universal Time (UTC).

KST: UTC+9

UTC: UTC

Neither Korea Standard Time nor Coordinated Universal Time is currently observing daylight saving time.

When to schedule

Standard business hours (9 AM–5 PM, Mon–Fri) in Korea Standard Time and Coordinated Universal Time don't overlap on the same weekday. Coordinated Universal Time is 9 hours behind Korea Standard Time.

With some flexibility, there’s a workable window outside standard hours:

  • 4 PM–8 PM in Korea Standard Time (7 AM–11 AM in Coordinated Universal Time) — suggest 6:00 PM Korea Standard Time (9:00 AM Coordinated Universal Time).

This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

South Korea

  • New Year's DayThu, Jan 1
  • Lunar New YearMon, Feb 16
  • Lunar New YearTue, Feb 17
  • Lunar New YearWed, Feb 18
  • Independence Movement DayMon, Mar 2
  • Labour DayFri, May 1
  • Children's DayTue, May 5
  • Buddha's BirthdayMon, May 25
  • Local Election DayWed, Jun 3
  • Memorial DaySat, Jun 6
  • Constitution DayFri, Jul 17
  • Liberation DayMon, Aug 17
  • ChuseokThu, Sep 24
  • ChuseokFri, Sep 25
  • ChuseokSat, Sep 26
  • National Foundation DayMon, Oct 5
  • Hangul DayFri, Oct 9
  • Christmas DayFri, Dec 25

About these zones

Korea Standard Time is also known as KST. To call South Korea, dial +82.

Coordinated Universal Time is also known as UTC.

Coordinated Universal Time is approximately 8,200 miles northwest of Korea Standard Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

KSTUTCDay
12:00 am3:00 pm-1 day
1:00 am4:00 pm-1 day
2:00 am5:00 pm-1 day
3:00 am6:00 pm-1 day
4:00 am7:00 pm-1 day
5:00 am8:00 pm-1 day
6:00 am9:00 pm-1 day
7:00 am10:00 pm-1 day
8:00 am11:00 pm-1 day
9:00 am12:00 amSame day
10:00 am1:00 amSame day
11:00 am2:00 amSame day
12:00 pm3:00 amSame day
1:00 pm4:00 amSame day
2:00 pm5:00 amSame day
3:00 pm6:00 amSame day
4:00 pm7:00 amSame day
5:00 pm8:00 amSame day
6:00 pm9:00 amSame day
7:00 pm10:00 amSame day
8:00 pm11:00 amSame day
9:00 pm12:00 pmSame day
10:00 pm1:00 pmSame day
11:00 pm2:00 pmSame day

Daylight saving time

Neither Korea Standard Time nor Coordinated Universal Time observes daylight saving time. The offset between these zones remains constant year-round.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Korea Standard Time
Sunrise
5:12 AM
Sunset
7:51 PM
Day length
14h 38m
Coordinated Universal Time
Sunrise
5:56 AM
Sunset
6:03 PM
Day length
12h 7m

Daylight overlap: 4h 55m — 2:56 PM–7:51 PM in Korea Standard Time (5:56 AM–10:51 AM in Coordinated Universal Time). Both locations are in daylight during this window.

Cities in these zones

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Korea Standard Time

  • GMP
  • ICN
  • PUS
  • TAE
  • CJJ
  • KWJ
  • MWX

Related conversions

Common conversions

What is 9:00 am KST in UTC?
9:00 am KST is 12:00 am UTC.
What is 12:00 pm KST in UTC?
12:00 pm KST is 3:00 am UTC.
What is 12:30 pm KST in UTC?
12:30 pm KST is 3:30 am UTC.
What is 2:00 pm KST in UTC?
2:00 pm KST is 5:00 am UTC.
What is 5:00 pm KST in UTC?
5:00 pm KST is 8:00 am UTC.
What is 11:30 pm KST in UTC?
11:30 pm KST is 2:30 pm UTC.