Hawaii to Seoul time converter

Seoul is 19 hours ahead of Hawaii. When it is 9:00 AM in Hawaii, it is 4:00 AM (Wed, Oct 21) in Seoul.

Hawaii HST

Tuesday, October 20, 2026

Seoul KST

Wednesday, October 21, 2026

Hawaii
United States
Tue, Oct 20
HSTUTC-10
Seoul
South Korea
Wed, Oct 21
KSTUTC+9+19h
Finding your time zone…
Shared working hours (9:00–18:00)

Hawaii to Seoul conversion table

Every hour of today in Hawaii and the matching time in Seoul. Light rows are typical working hours (9:00–18:00).

HawaiiSeoul
12:00 AM7:00 PM
1:00 AM8:00 PM
2:00 AM9:00 PM
3:00 AM10:00 PM
4:00 AM11:00 PM
5:00 AM12:00 AM+1 day
6:00 AM1:00 AM+1 day
7:00 AM2:00 AM+1 day
8:00 AM3:00 AM+1 day
9:00 AM4:00 AM+1 day
10:00 AM5:00 AM+1 day
11:00 AM6:00 AM+1 day
12:00 PM7:00 AM+1 day
1:00 PM8:00 AM+1 day
2:00 PM9:00 AM+1 day
3:00 PM10:00 AM+1 day
4:00 PM11:00 AM+1 day
5:00 PM12:00 PM+1 day
6:00 PM1:00 PM+1 day
7:00 PM2:00 PM+1 day
8:00 PM3:00 PM+1 day
9:00 PM4:00 PM+1 day
10:00 PM5:00 PM+1 day
11:00 PM6:00 PM+1 day

Best time to call or meet

Both sides are at work from 2:00 PM – 6:00 PM in Hawaii (9:00 AM – 1:00 PM in Seoul).

Daylight saving time and the difference

The difference stays 19 hours all year.

More conversions

Seoul to HawaiiHawaii to New YorkHawaii to LondonHawaii to Los AngelesHawaii to ChicagoHawaii to TorontoHawaii to São PauloHawaii to ParisHawaii to BerlinHawaii to MoscowHawaii to DubaiHawaii to New DelhiHawaii to Bangkok
New York to SeoulLondon to SeoulLos Angeles to SeoulChicago to SeoulToronto to SeoulSão Paulo to SeoulParis to SeoulBerlin to SeoulMoscow to SeoulDubai to SeoulNew Delhi to SeoulBangkok to Seoul

Questions and answers

What is the time difference between Hawaii and Seoul?

Seoul is 19 hours ahead of Hawaii.

What time is it in Seoul when it is 9 AM in Hawaii?

When it is 9:00 AM in Hawaii, it is 4:00 AM (Wed, Oct 21) in Seoul.

When is the best time to call Seoul from Hawaii?

Both sides are at work from 2:00 PM – 6:00 PM in Hawaii (9:00 AM – 1:00 PM in Seoul).

Does the time difference between Hawaii and Seoul change?

No. The difference stays 19 hours all year.