KST to HST Converter
South Korea to Hawaii — 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
| KST | HST |
|---|---|
| 8:00 AM KST | 1:00 PM HST |
| 9:00 AM KST | 2:00 PM HST |
| 10:00 AM KST | 3:00 PM HST |
| 11:00 AM KST | 4:00 PM HST |
| 12:00 PM KST | 5:00 PM HST |
| 1:00 PM KST | 6:00 PM HST |
| 2:00 PM KST | 7:00 PM HST |
| 3:00 PM KST | 8:00 PM HST |
| 4:00 PM KST | 9:00 PM HST |
| 5:00 PM KST | 10:00 PM HST |
| 6:00 PM KST | 11:00 PM HST |
| 7:00 PM KST | 12:00 AM HST |
| 8:00 PM KST | 1:00 AM HST |
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.
HST is 19 hours behind KST (standard time).
Daylight Saving Time: Neither KST nor HST observes Daylight Saving Time. The 19-hour offset is constant year-round with no seasonal variation.
Best Meeting Times: KST & HST
KST
20:00–21:00
Korea Time
HST
01:00–02:00
Hawaii Time
Recommended time: 20:00 KST / 01:00 HST
DST schedule for 2026
Current-year daylight saving start and end dates for the selected zones.
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.
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.
Principal Cities
KST — Korea Time
- SeoulSouth Korea
- BusanSouth Korea
- IncheonSouth Korea
- DaeguSouth Korea
HST — Hawaii Time
- HonoluluUnited States
- Pearl CityUnited States
- HiloUnited States
- KailuaUnited States