Time Difference

Seoul to Honolulu

19h

Honolulu is 19 hours behind Seoul

Seoul
South Korea
Korean Standard Time
GMT+9 · UTC+9
View current time →
Honolulu
United States
Hawaii-Aleutian Standard Time
HST · UTC-10
View current time →

Time Conversion Table

SeoulHonolulu
12:00 AM5:00 AM
1:00 AM6:00 AM
2:00 AM7:00 AM
3:00 AM8:00 AM
4:00 AM9:00 AM
5:00 AM10:00 AM
6:00 AM11:00 AM
7:00 AM12:00 PM
8:00 AM1:00 PM
9:00 AM2:00 PM
10:00 AM3:00 PM
11:00 AM4:00 PM
12:00 PM5:00 PM
1:00 PM6:00 PM
2:00 PM7:00 PM
3:00 PM8:00 PM
4:00 PM9:00 PM
5:00 PM10:00 PM
6:00 PM11:00 PM
7:00 PM12:00 AM
8:00 PM1:00 AM
9:00 PM2:00 AM
10:00 PM3:00 AM
11:00 PM4:00 AM
Highlighted rows indicate typical business hours (9 AM – 5 PM)

About the Time Difference

The time difference between Seoul, South Korea and Honolulu, United States is 19 hours. Honolulu is behind Seoul.

Seoul is in the Korean Standard Time timezone (GMT+9, UTC+9), while Honolulu is in the Hawaii-Aleutian Standard Time timezone (HST, UTC-10).

Note that this time difference can change during Daylight Saving Time transitions. Seoul and Honolulu may observe DST on different dates, which can temporarily shift the difference by one hour. Use Clockzilla to always see the accurate, current time difference.

When scheduling meetings or calls between Seoul and Honolulu, the best overlapping window for business hours is typically limited due to the large time gap. Consider rotating meeting times for fairness, or using asynchronous communication.

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