HST to KST Converter
Hawaii to South Korea — a 19.0-hour gap with constant offset year-round. Coordination typically centers on trade, investment, and remote team management.
Time Zone Converter
Compare Times
| HST | KST |
|---|---|
| 8:00 AM HST | 3:00 AM KST |
| 9:00 AM HST | 4:00 AM KST |
| 10:00 AM HST | 5:00 AM KST |
| 11:00 AM HST | 6:00 AM KST |
| 12:00 PM HST | 7:00 AM KST |
| 1:00 PM HST | 8:00 AM KST |
| 2:00 PM HST | 9:00 AM KST |
| 3:00 PM HST | 10:00 AM KST |
| 4:00 PM HST | 11:00 AM KST |
| 5:00 PM HST | 12:00 PM KST |
| 6:00 PM HST | 1:00 PM KST |
| 7:00 PM HST | 2:00 PM KST |
| 8:00 PM HST | 3:00 PM KST |
Common Time Conversions
EST · New York →
CST · Chicago →
MST · Denver →
PST · Los Angeles →
AKST · Anchorage →
HST · Honolulu →
UTC · Universal →
GMT · London →
IST · New Delhi →
CET · Paris →
How Time Zone Conversion Works
Time zone conversion works by comparing the UTC offset of one location to another. Every city or region is measured relative to Coordinated Universal Time (UTC), which acts as the global reference point for civil time.
KST is 19 hours ahead of HST (standard time).
Daylight Saving Time: Neither HST nor KST observes Daylight Saving Time. The 19-hour offset is constant year-round with no seasonal variation.
Best Meeting Times: HST & KST
HST
07:00–08:00
Hawaii Time
KST
02:00–03:00
Korea Time
Recommended time: 07:00 HST / 02:00 KST
DST schedule for 2026
Current-year daylight saving start and end dates for the selected zones.
HST · Hawaii Time
Standard offset −10:00
Hawaii Time remains on a constant standard offset for the year.
Hawaii does not observe DST. The Aleutian Islands portion of HAST does observe DST (becoming HADT, UTC−9), but population there is negligible. For practical purposes HST is a fixed-offset zone.
KST · Korea Time
Standard offset +09:00
Korea Time remains on a constant standard offset for the year.
South Korea does not currently observe DST; temporary DST experiments ended in 1988.
Principal Cities
HST — Hawaii Time
- HonoluluUnited States
- Pearl CityUnited States
- HiloUnited States
- KailuaUnited States
KST — Korea Time
- SeoulSouth Korea
- BusanSouth Korea
- IncheonSouth Korea
- DaeguSouth Korea