Time in Ulsan, South Korea

Time zone: KST (UTC/GMT +09:00) — Asia/Seoul

If you need the offset: Ulsan is on KST, 9 hours ahead of UTC, i.e. UTC+09:00. The matching IANA zone is Asia/Seoul.

There is no daylight saving in Ulsan. UTC+09:00 applies all year, so the offset never moves on this side — only the other party's clock changes.

Current gap between Ulsan and cities people most often need to coordinate with. These figures already account for daylight saving where it applies.

Assuming a 09:00–17:00 day at both ends, these windows (in Ulsan local time) fall inside working hours for both cities.

No shared working window exists with New York, Los Angeles, London or Sao Paulo, so those calls have to sit outside somebody's normal hours.

These South Korea cities also use Asia/Seoul, so their clocks read identically to Ulsan at every moment of the year.

Goyang-si Seongnam-si Changwon Bucheon-si Cheongju-si Ansan-si Cheonan Jeonju