Asia · South Korea
Current time in Seongnam-si
Korean Standard Time.
Thursday, October 15, 2026
Daylight saving
Not observed
This zone has no seasonal clock change.
About Seongnam-si time
Seongnam-si keeps one clock.
Seongnam-si is a dynamic satellite city cheek-by-jowl south of Korea's capital — the cheek-by-jowl relationship ensures meetings with Seoul happen with zero timezone confusion. The lack of DST means your 9 a.m. call time stays comfortably consistent year-round.
Convert
Seongnam-si to the world's clocks.
Frequently asked questions
Common questions about Seongnam-si's time zone, daylight saving rules, and scheduling across it. Can't find what you need? Email [email protected].
- How close is Seongnam's time zone to Seoul?
- They share the exact same offset: UTC+9 (KST). No conversion is ever needed between them.
- Does Seongnam observe daylight saving time?
- No — it follows Asia/Seoul year-round without any clock changes.
- How does this affect work hours?
- Like much of Korea, Seongnam offices typically run 9 a.m.–6 p.m., aligning neatly with Western Europe's morning and East Coast late evening.
- Why is the lack of DST useful?
- It simplifies scheduling — your teammates never have to worry about clocks shifting mid-project and causing mishaps.
- What's a cultural note about punctuality here?
- Punctuality is absolutely paramount in Korea, which makes timed collaboration more rewarding and respectful.
Free · Developer API
This city's time zone, as JSON.
The time zone behind Seongnam-si: its live offset, abbreviation and DST status, from one endpoint.
Also in the API: time zones by coordinates, conversions that flag daylight saving gaps, and abbreviations decoded.
Moving off WorldTimeAPI? Our drop-in replacement needs no key.