Current KST time

KSTUTC+9No daylight saving time

Korea Standard Time

KST means Korea Standard Time. It is fixed at UTC+9 and does not change for daylight saving time.

Zone
KST
UTC offset
UTC+9
DST
No
Next change
None
Countries
4
Representative IANA zones
2
09:00 in UTC
00:00

These IANA zones keep UTC+9 under the current tzdb rules; historical offsets may differ.

Time difference with your location

Korea Standard Time is 9 hours ahead of UTC. Compare with your local time →

Where this time is used

Cities in 4 countries keep UTC+9 throughout 2026. Sharing an offset does not necessarily mean using the same abbreviation.

CountryStates / provincesCities
South Korea—145
North Korea—97
CountryStates / provincesCities
Japan—6
Indonesia—3

Countries and cities in this time zone · KST

12 representative cities below currently show UTC+9.

LocationLocal timeUTC offset
SeoulSouth Korea UTC+9
PyongyangNorth Korea UTC+9
TokyoJapan UTC+9
JayapuraIndonesia UTC+9
BusanSouth Korea UTC+9
IncheonSouth Korea UTC+9
LocationLocal timeUTC offset
DaeguSouth Korea UTC+9
DaejeonSouth Korea UTC+9
GwangjuSouth Korea UTC+9
SuwonSouth Korea UTC+9
UlsanSouth Korea UTC+9
Goyang-siSouth Korea UTC+9

Other zones with the same UTC offset

3 other time zones share UTC+9 with KST right now. Regional zones may leave this offset when their clocks change.

Quick conversions · KST

KST = UTC+9, so 09:00 KST = 00:00 UTC (on the corresponding UTC day). These 40 zones show the equivalent of 09:00 KST using today's offsets.

Time zoneUTC · difference09:00 KST =
KST to UTCCoordinated Universal Time UTC+0−9h 00:00
KST to ESTEastern Standard Time UTC-5−14h 19:00
KST to ISTIndia Standard Time UTC+5:30−3h30m 05:30
KST to PSTPacific Standard Time UTC-8−17h 16:00
KST to GMTGreenwich Mean Time UTC+0−9h 00:00
KST to CSTCentral Standard Time UTC-6−15h 18:00
KST to MSTMountain Standard Time UTC-7−16h 17:00
KST to CETCentral European Time UTC+1−8h 01:00
KST to AESTAustralian Eastern Standard Time UTC+10+1h 10:00
KST to ICTIndochina Time UTC+7−2h 07:00
KST to JSTJapan Standard Time UTC+9same time 09:00
KST to SGTSingapore Time UTC+8−1h 08:00
KST to HKTHong Kong Time UTC+8−1h 08:00
KST to BSTBritish Summer Time UTC+1−8h 01:00
KST to EDTEastern Daylight Time UTC-4−13h 20:00
KST to PDTPacific Daylight Time UTC-7−16h 17:00
KST to CDTCentral Daylight Time UTC-5−14h 19:00
KST to ACDTAustralian Central Daylight Time UTC+10:30+1h30m 10:30
KST to ACSTAustralian Central Standard Time UTC+9:30+30m 09:30
KST to ADTAtlantic Daylight Time UTC-3−12h 21:00
Time zoneUTC · difference09:00 KST =
KST to AEDTAustralian Eastern Daylight Time UTC+11+2h 11:00
KST to AFSTAfghanistan Time UTC+4:30−4h30m 04:30
KST to AKDTAlaska Daylight Time UTC-8−17h 16:00
KST to AKSTAlaska Standard Time UTC-9−18h 15:00
KST to ALMTAlmaty Time UTC+5−4h 05:00
KST to AOEAnywhere on Earth UTC-12−21h 12:00
KST to AST-ARABIAArabia Standard Time UTC+3−6h 03:00
KST to ARTArgentina Time UTC-3−12h 21:00
KST to ASTAtlantic Standard Time UTC-4−13h 20:00
KST to AWSTAustralian Western Standard Time UTC+8−1h 08:00
KST to BDTBangladesh Time UTC+6−3h 06:00
KST to BRTBrasília Time UTC-3−12h 21:00
KST to CATCentral Africa Time UTC+2−7h 02:00
KST to CTCentral Time UTC-5−14h 19:00
KST to CESTCentral European Summer Time UTC+2−7h 02:00
KST to CHADTChatham Daylight Time UTC+13:45+4h45m 13:45
KST to CHASTChatham Standard Time UTC+12:45+3h45m 12:45
KST to CST-CHINAChina Standard Time UTC+8−1h 08:00
KST to CHSTChamorro Standard Time UTC+10+1h 10:00
KST to CLTChile Time UTC-4−13h 20:00

Popular conversions

Frequently asked questions

What is KST?

KST means Korea Standard Time. It is fixed at UTC+9 and does not change for daylight saving time.

Where is KST's UTC offset used?

UTC+9 is used all year in South Korea, North Korea, Japan, and Indonesia. 4 countries in our data have cities at this offset; local abbreviations can differ.

KST vs UTC: what is the difference?

KST = UTC+9, so 09:00 KST = 00:00 UTC (on the corresponding UTC day).

Does KST have daylight saving time?

No. KST always means UTC+9. A region may switch to a different abbreviation, but this fixed label does not change its offset.