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Current Time in
Daejeon

Daejeon uses Asia/Seoul — UTC+09:00 (KST) in standard time. It is located in Daejeon, South Korea. The live clock shows the current local time and updates every second.

Daejeon · South Korea
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Daejeon Time Zone — Asia/Seoul

Everything you need to know about Daejeon's time zone, UTC offset, and Daylight Saving Time schedule.

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Standard Time (KST)

Daejeon uses UTC+09:00 in standard time. This is the offset used outside the daylight saving period.

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Daylight Saving Time

This zone does not observe daylight saving time and stays on UTC+09:00 year-round.

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IANA Identifier

The official IANA time zone name for Daejeon is Asia/Seoul. This identifier is used in programming, operating systems and calendar applications worldwide.

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DST 2026–2029 Dates

No daylight saving transitions are scheduled for this zone.

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Other Places in This Zone

Seoul, Busan, Incheon, Daegu, Gwangju

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Local Essentials

Currency: South Korean Won (KRW). Calling code: +82. Languages: Korean.

Daejeon — Daejeon, South Korea

Daejeon (Korean: 대전; Korean pronunciation: [tɛdʑʌn] ) is South Korea's fifth-largest metropolis, with a population of nearly 1.5 million. Located in a central lowland valley between the Sobaek Mountains and the Geum River, the city is known both as a technology and research center, and for its close relationship with the natural environment.

Daejeon is a major transportation hub, having developed as a railway town, and is approximately 50 minutes from Seoul by KTX or SRT high speed rail.

Daejeon (along with Seoul, Gwacheon and Sejong City) is one of South Korea's administration hubs.

The city is home to 23 universities and colleges, including Korea Advanced Institute of Science and Technology (KAIST) and Chungnam National University, as well as government research institutes, and research and development centers for many chaebols such as Samsung and LG, mostly located in the city's Daedeok Innopolis.

Source: Wikipedia contributors — Daejeon. Adapted text is available under CC BY-SA 4.0; see licence details. Reviewed by the TimeZoria AI Editorial Team.

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Population

1,441,203 residents (GeoNames city population; metro areas may be larger).

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Region

Daejeon, South Korea.

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Time Zone

Asia/Seoul · UTC+09:00 (KST).

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Daylight Saving

No daylight saving time.

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Currency & Calling Code

South Korean Won (KRW) · +82.

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Nearby Cities

Cheongju, Cheonan, Jeonju

Daejeon — airport, climate and local facts

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Nearest commercial airport

Cheongju International Airport/Cheongju Air Base (K-59/G-513) (CJJ) about 41.9 km from the city coordinates. Source: OurAirports (public domain).

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Climate snapshot

2024 averages: daily highs 19.5°C and lows 9.8°C. Warmest month: August (average high 33.0°C); coolest month: January (average low -4.0°C). Source: Open-Meteo (CC BY 4.0).

Region: Daejeon · IANA zone: Asia/Seoul · Open data sources and licence details: TimeZoria AI licenses.

Daejeon vs World Clocks

Current time in major cities compared to Daejeon. 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 Daejeon 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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Daejeon'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 Daejeon.

TimeZoria AI uses your browser's built-in Intl API and the IANA tz database to always display the correct Daejeon time — including DST changes — without any network requests.

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Check the current time in other major cities — all on TimeZoria AI.

Frequently Asked Questions — Daejeon Time

Common questions about Daejeon's time zone, UTC offset, and DST.

Daejeon uses Asia/Seoul (KST), with a standard UTC offset of UTC+09:00.
No. Daejeon does not observe daylight saving time. It stays on UTC+09:00 (KST) throughout the year.
The UTC offset is UTC+09:00 (KST) all year.
The official IANA time zone identifier is Asia/Seoul.
The live clock at the top of this page shows the current local time in Daejeon. It updates every second using your browser's time zone data.
Daejeon is 14 hours ahead of New York in standard time. Daylight saving or seasonal clock changes can shift the difference by one hour around transition dates.
Daejeon is 9 hours ahead of London in standard time. Daylight saving or seasonal clock changes can shift the difference by one hour around transition dates.
Aim for a time when both locations are within normal business hours, roughly 09:00–17:00 local time. Use the live world clock comparison on this page because DST can move the overlap by one hour.
Yes. All listed places in South Korea use Asia/Seoul.