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  3. KST to HST
  4. 12 PM

12 PM KST to HST

12 PM KST = 5 PM HST (previous day). HST is 19 hours behind of KST today.

4 hours of the workday overlap: 9 AM-1 PM KST is 2 PM-6 PM HST. Quick answers: 9 AM KST = 2 PM HST (previous day), 12 PM KST = 5 PM HST (previous day), 5 PM KST = 10 PM HST (previous day).

KST · Korea Standard Time

UTC+9

HST · Hawaii Standard Time

UTC−10

Convert a time

HST
--:--

Working hours side by side

columns: KST hours
PING · 09–18 local MAYBE · 07–09, 18–21 NOT NOW · 21–07Outlined: everyone can be pinged

KST to HST conversion table

KSTHSTVerdict in HST
12 AM · 00:005 AM · 05:00 (previous day)NOT NOW
1 AM · 01:006 AM · 06:00 (previous day)NOT NOW
2 AM · 02:007 AM · 07:00 (previous day)MAYBE
3 AM · 03:008 AM · 08:00 (previous day)MAYBE
4 AM · 04:009 AM · 09:00 (previous day)PING
5 AM · 05:0010 AM · 10:00 (previous day)PING
6 AM · 06:0011 AM · 11:00 (previous day)PING
7 AM · 07:0012 PM · 12:00 (previous day)PING
8 AM · 08:001 PM · 13:00 (previous day)PING
9 AM · 09:002 PM · 14:00 (previous day)PING
10 AM · 10:003 PM · 15:00 (previous day)PING
11 AM · 11:004 PM · 16:00 (previous day)PING
12 PM · 12:005 PM · 17:00 (previous day)PING
1 PM · 13:006 PM · 18:00 (previous day)MAYBE
2 PM · 14:007 PM · 19:00 (previous day)MAYBE
3 PM · 15:008 PM · 20:00 (previous day)MAYBE
4 PM · 16:009 PM · 21:00 (previous day)NOT NOW
5 PM · 17:0010 PM · 22:00 (previous day)NOT NOW
6 PM · 18:0011 PM · 23:00 (previous day)NOT NOW
7 PM · 19:0012 AM · 00:00NOT NOW
8 PM · 20:001 AM · 01:00NOT NOW
9 PM · 21:002 AM · 02:00NOT NOW
10 PM · 22:003 AM · 03:00NOT NOW
11 PM · 23:004 AM · 04:00NOT NOW

Cities on KST

Asia/Seoul
SeoulBusanIncheonDaeguDaejeonGwangju

Cities on HST

Pacific/Honolulu
HonoluluEast HonoluluPearl CityWaiau-Pacific PalisadesMakakilo / Kapolei / Honokai HaleKalihi-Palama

Other conversions

All converters
HST → KSTKST → ESTKST → EDTKST → PSTKST → PDTKST → CSTKST → CDTKST → MSTKST → GMTKST → UTCKST → BST

Questions

What is the time difference between KST and HST?

HST (Hawaii Standard Time) is 19 hours behind of KST (Korea Standard Time) right now: UTC+9 versus UTC−10.

What is 9 AM KST in HST?

9:00 AM KST is 2 PM HST (previous day).

What is 5 PM KST in HST?

5:00 PM KST is 10 PM HST (previous day).

Does daylight saving change the KST–HST difference?

KST has no daylight saving; it stays UTC+9 all year. HST has no daylight saving; it stays UTC−10 all year.