🇰🇷 Seoul daylight saving time (DST)

Seoul does not observe daylight saving time — it stays on UTC+09:00 year-round.

Current offset: UTC+09:00 (KST)
Constant all year.

FAQ

Why does this matter for converting times?
A correct timezone conversion must use the offset that applied on the target date. Around these transition dates, the same wall-clock time maps to different UTC instants — which is exactly what Seoul's converter handles.

Other zones: New York, Los Angeles, Chicago, Denver, London.