KST to HST converter

Korea Time (Seoul) to Hawaii Time (Honolulu).

KST9:07 AMSat 31 Oct 2026

→

HST2:07 PMFri 30 Oct 2026

HST is 19 h behind KST.

Pick a time in KST

⇄ HST to KST

9:00 AM KST = 2:00 PM HST previous day

Best time to meet

The best time to meet is between 9:00 AM and 12:00 PM KST, which is 2:00 PM to 5:00 PM HST. Both sides are then inside 9 AM to 5 PM.

KST to HST time table

For 31 Oct 2026. Green rows: both sides between 9 AM and 5 PM.

KST	HST
12:00 AM KST	5:00 AM HST previous day
1:00 AM KST	6:00 AM HST previous day
2:00 AM KST	7:00 AM HST previous day
3:00 AM KST	8:00 AM HST previous day
4:00 AM KST	9:00 AM HST previous day
5:00 AM KST	10:00 AM HST previous day
6:00 AM KST	11:00 AM HST previous day
7:00 AM KST	12:00 PM HST previous day
8:00 AM KST	1:00 PM HST previous day
9:00 AM KST	2:00 PM HST previous day
10:00 AM KST	3:00 PM HST previous day
11:00 AM KST	4:00 PM HST previous day
12:00 PM KST	5:00 PM HST previous day
1:00 PM KST	6:00 PM HST previous day
2:00 PM KST	7:00 PM HST previous day
3:00 PM KST	8:00 PM HST previous day
4:00 PM KST	9:00 PM HST previous day
5:00 PM KST	10:00 PM HST previous day
6:00 PM KST	11:00 PM HST previous day
7:00 PM KST	12:00 AM HST
8:00 PM KST	1:00 AM HST
9:00 PM KST	2:00 AM HST
10:00 PM KST	3:00 AM HST
11:00 PM KST	4:00 AM HST

Quick answers

9:00 AM KST = 2:00 PM HST (previous day)
12:00 PM KST = 5:00 PM HST (previous day)
3:00 PM KST = 8:00 PM HST (previous day)
5:00 PM KST = 10:00 PM HST (previous day)
9:00 AM HST = 4:00 AM KST (next day)
12:00 PM HST = 7:00 AM KST (next day)
5:00 PM HST = 12:00 PM KST (next day)

Does the gap change during the year?

No. HST is 19 h behind KST all year.

KST does not change its clocks. HST does not change its clocks.

About KST and HST

KST here means Korea Time, the clock in Seoul. Right now it is UTC+9. It has no daylight saving.

HST here means Hawaii Time, the clock in Honolulu. Right now it is UTC−10. It has no daylight saving.

Every city on your wrist

Meanwhile puts these times in your Mac menu bar, on your iPhone home screen and on your Apple Watch. Type “3pm Tokyo” and every city answers. Free for 3 cities. Unlock every city on every device once for $4.99, shared with your family. No subscription.

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