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Seoul, South Korea

Seoul operates on Korea Standard Time, UTC+9, without daylight saving time. Its clock matches Incheon, Busan, Jeju, and every other South Korean city throughout the year.

Seoul, South Korea

Sunday, 6 September 2026

UTC+9 · Asia/Seoul

Time and sun data for Seoul — the largest city of Seoul

The sun in Seoul

Sunrise 6:07 AM Solar noon 12:32 PM Sunset 6:57 PM Daylight 12 h 50 min Night 11 h 10 min Civil twilight 5:41 AM – 7:23 PM

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Current time in Seoul, South Korea

Seoul time is calculated by adding nine hours to UTC. The arithmetic often changes the date, particularly when converting afternoon or evening UTC. South Korea’s fixed offset means no seasonal correction is required.

For international meetings, store the event with a named time zone rather than a manually calculated offset if calendar software supports it. Seoul remains at UTC+9, while cities abroad may move their clocks and alter the difference.

Seoul never changes its clocks for summer, though a packed itinerary can still make an hour disappear.

One clock across the capital

Seoul is a special city divided into districts, and every district uses the same official time. Crossing the Han River or travelling from the historic centre to an outer neighbourhood produces no change on a correctly configured phone.

Common reference areas include: Jongno District, containing major historic and government sites Jung District, in the central city Gangnam District, south of the Han River Mapo District, on the river’s northern side

Songpa District, in southeastern Seoul The wider capital region extends beyond Seoul into Incheon and Gyeonggi Province. Administrative boundaries matter for addresses and local services, but not for time conversion: the entire region follows UTC+9.

How sunrise works in a dense city

Seoul’s sunrise time changes daily with the seasonal path of the Sun. The astronomical value is calculated for a location, but the first visible sunlight on a particular street may arrive later because of mountains, towers, or neighbouring buildings.

An observer beside an open stretch of the Han River may have a different horizon from someone among high-rise buildings. The official sunrise calculation can be the same or very close, yet their actual view differs. Cloud cover adds another visibility constraint.

Check a date-specific sunrise for Seoul. Use a more precise point when planning photography or an ascent. Read the result in Korea Standard Time. Allow for travel, access hours, terrain, and weather. Longer summer days and shorter winter days do not represent a change of time zone. They are changes in daylight. This distinction helps explain why a fixed morning appointment can take place before sunrise in one season and after sunrise in another.

Questions and answers
How far ahead of UTC is Seoul?
Seoul is nine hours ahead, using UTC+9.
Is Seoul on the same time as Tokyo?
Yes. Both use UTC+9, although they name their standard time separately.
Does Seoul’s sunrise time apply exactly to every district?
It is a useful city-wide reference, but precise calculations and visible sunrise can vary with position and the local horizon.

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