HST to KST: Hawaii-Aleutian Standard Time to Korea Standard Time

19 hours ahead of HST

KST compared with HST, right now. Swap: KST to HST ⇄

Find a time that works in both places

Hour comparison appears when this page finishes loading.

For Tuesday, November 3, 2026. Rows where both places are inside 9 AM–5 PM are highlighted.

Hawaii-Aleutian Standard Time (HST). Hawaii, which stays on UTC−10 all year and does not observe daylight saving time.

No clock change is scheduled; the offset stays the same all year.

Korea Standard Time (KST). South Korea, including Seoul and Busan. KST is UTC+9 all year.

No clock change is scheduled; the offset stays the same all year.

KST is 19 hours ahead of HST. Neither side uses daylight saving time, so the difference is the same all year.

On Tuesday, November 3, 2026, 9:00 AM in HST was 4:00 AM (next day) in KST. The conversion table above shows today’s values.

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

Hawaii-Aleutian Standard Time does not use daylight saving time, so HST applies all year.