South Korea to Costa Rica time converter

Costa Rica is 15 hours behind South Korea. When it is 9:00 AM in South Korea, it is 6:00 PM (Wed, Oct 21) in Costa Rica.

South Korea KST

Thursday, October 22, 2026

Costa Rica CST

Wednesday, October 21, 2026

South Korea
Thu, Oct 22
KSTUTC+9
Costa Rica
Wed, Oct 21
CSTUTC-6-15h
Finding your time zone…
Shared working hours (9:00–18:00)

South Korea to Costa Rica conversion table

Every hour of today in South Korea and the matching time in Costa Rica. Light rows are typical working hours (9:00–18:00).

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in South Korea (4:00 PM – 6:00 PM in Costa Rica): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference stays 15 hours all year.

More conversions

Costa Rica to South KoreaSouth Korea to New YorkSouth Korea to LondonSouth Korea to Los AngelesSouth Korea to ChicagoSouth Korea to TorontoSouth Korea to São PauloSouth Korea to ParisSouth Korea to BerlinSouth Korea to MoscowSouth Korea to DubaiSouth Korea to New DelhiSouth Korea to Bangkok
New York to Costa RicaLondon to Costa RicaLos Angeles to Costa RicaChicago to Costa RicaToronto to Costa RicaSão Paulo to Costa RicaParis to Costa RicaBerlin to Costa RicaMoscow to Costa RicaDubai to Costa RicaNew Delhi to Costa RicaBangkok to Costa Rica

Questions and answers

What is the time difference between South Korea and Costa Rica?

Costa Rica is 15 hours behind South Korea.

What time is it in Costa Rica when it is 9 AM in South Korea?

When it is 9:00 AM in South Korea, it is 6:00 PM (Wed, Oct 21) in Costa Rica.

When is the best time to call Costa Rica from South Korea?

Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in South Korea (4:00 PM – 6:00 PM in Costa Rica): working hours on one side, early or late on the other.

Does the time difference between South Korea and Costa Rica change?

No. The difference stays 15 hours all year.