Seoul uses Korea Standard Time (KST), nine hours ahead of UTC — the same as Tokyo. South Korea does not observe daylight saving time.
Time zone facts
- IANA time zone: Asia/Seoul
- Country: South Korea (KR)
- Coordinates: 37.5665°, 126.9780°
Korea and daylight saving
South Korea last used daylight saving time in 1987 and 1988, around the Seoul Olympics. Since then KST has stayed at UTC+9 all year.
Business hours
The Korea Exchange trades from 9:00 to 15:30 KST. Seoul is one hour ahead of Beijing and Shanghai, and 13 to 14 hours ahead of New York depending on US daylight saving time.