Seoul uses Asia/Seoul — UTC+09:00 (KST) in standard time. It is located in Seoul, South Korea. The live clock shows the current local time and updates every second.
Everything you need to know about Seoul's time zone, UTC offset, and Daylight Saving Time schedule.
Seoul uses UTC+09:00 in standard time. This is the offset used outside the daylight saving period.
This zone does not observe daylight saving time and stays on UTC+09:00 year-round.
The official IANA time zone name for Seoul is Asia/Seoul. This identifier is used in programming, operating systems and calendar applications worldwide.
No daylight saving transitions are scheduled for this zone.
Busan, Incheon, Daegu, Daejeon, Gwangju
Currency: South Korean Won (KRW). Calling code: +82. Languages: Korean.
Seoul, officially Seoul Special Metropolitan City, is the capital and largest city of South Korea, and the largest city in the whole of Korea.
The broader Seoul Metropolitan Area, encompassing Seoul, Gyeonggi Province and Incheon, emerged as the world's sixth largest metropolitan economy in 2022, behind New York, Tokyo, Los Angeles, Paris, and London, and hosts more than half of South Korea's population.
Although Seoul's population peaked at over 10 million, it has gradually decreased since 2014, standing at about 9.6 million residents as of 2024.
Seoul's history traces back to 18 BC when it was founded by the people of Baekje, one of the Three Kingdoms of Korea. During the Joseon dynasty, Seoul was officially designated as the capital, surrounded by the Fortress Wall of Seoul. In the early 20th century, Seoul was occupied by the Empire of Japan, temporarily renamed "Keijō" ("Gyeongseong" in Korean).
Source: Wikipedia contributors — Seoul. Adapted text is available under CC BY-SA 4.0; see licence details. Reviewed by the TimeZoria AI Editorial Team.
10,349,312 residents (GeoNames city population; metro areas may be larger).
Seoul, South Korea.
Asia/Seoul · UTC+09:00 (KST).
No daylight saving time.
South Korean Won (KRW) · +82.
Goyang, Bucheon, Seongnam
Seoul Gimpo International Airport (GMP) about 16.5 km from the city coordinates. Source: OurAirports (public domain).
2024 averages: daily highs 17.9°C and lows 8.6°C. Warmest month: August (average high 31.3°C); coolest month: January (average low -6.2°C). Source: Open-Meteo (CC BY 4.0).
Seoul is the business and financial hub of South Korea. Although it accounts for only 0.6 percent of the nation's land area, 48.3 percent of South Korea's bank deposits were held in Seoul in 2003, and the city generated 23 percent of the country's GDP overall in 2012. Source: Wikipedia contributors · CC BY-SA 4.0 (adapted).
Region: Seoul · IANA zone: Asia/Seoul · Open data sources and licence details: TimeZoria AI licenses.
Current time in major cities compared to Seoul. Times update live every second.
Note on DST transitions: The offsets shown above reflect the current live offset, which changes twice a year due to Daylight Saving Time. Different regions change their clocks on different dates, which means the difference between Seoul and another city can vary by 1 hour for a short period in spring and autumn. Always verify the exact time difference around DST transition dates for critical scheduling.
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Seoul's time zone affects business hours, travel plans and international calls. The Asia/Seoul zone is used for local scheduling, transport and everyday life in Seoul.
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Common questions about Seoul's time zone, UTC offset, and DST.