| CITY | LOCAL TIME | Difference | Coming up |
|---|---|---|---|
| London United Kingdom | 01:00 | −8h | Becomes −9h on 25 Oct |
| Berlin Germany | 02:00 | −7h | Becomes −8h on 25 Oct |
| Dubai UAE | 04:00 | −5h | |
| Tokyo Japan | 09:00 | ±0h | |
| Sydney Australia | 10:00 | +1h | Becomes +2h on 4 Oct |
| New York United States | 20:00Wed | −13h | Becomes −14h on 1 Nov |
| Los Angeles United States | 17:00Wed | −16h | Becomes −17h on 1 Nov |
Daejeon, South Korea runs on UTC+9. This time zone stays fixed year-round at UTC+9 — daylight saving time is not observed. The time difference between Daejeon and New York is 13 hours. Standard working hours don't overlap at all with New York, so meetings need an early or late slot on one side. The time difference between Daejeon and London is 8 hours. Standard 9-to-6 working hours overlap for about 1 hour a day with London. A good time to connect: 17:00–18:00 in Daejeon lines up with 09:00–10:00 in London. Daejeon and Tokyo currently share the same clock. Standard 9-to-6 working hours overlap for about 9 hours a day with Tokyo. A good time to connect: 09:00–18:00 in Daejeon lines up with 09:00–18:00 in Tokyo. This timezone is also shared with cities such as Seoul, Pyongyang, Osaka. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Daejeon.
Daejeon (South Korea) is home to roughly 1.5M people. Today brings about 11.9 hours of daylight: sunrise at 06:24, sunset at 18:16. This time zone stays fixed year-round at UTC+9 — daylight saving time is not observed. It sits in the Northern Hemisphere, about 36° north of the equator. Traffic drives on the right.
Flag
South Korea
Capital
Seoul
Continent
Asia
Time Zone
UTC+9 · Asia/Seoul
Coordinates
36.35°N, 127.38°E
Currency
KRW (₩)
Calling Code
+82
Driving Side
Right
Hemisphere
Northern
Language
Korean
Measurement System
Metric
Did You Know?
Daedeok Innopolis holds around 30 government research institutes and dozens of corporate labs, concentrated deliberately from the 1970s. Korea's space programme, its standards institute and its atomic energy research all sit within a few kilometres.
The clock: Korea's official time is generated here, at KRISS in Daejeon — so the country's clock is set by a building in this city.
Daejeon lies at 127.4°E. Its time zone, UTC+9, is built around the 135°E meridian. The 7.6° gap between them means the clock runs roughly 30 minutes ahead of the sun: solar noon arrives at about 12:30 rather than 12:00. The zone holds UTC+9 all year — there is no daylight saving here.
The longest day of 2026 is 22 June, with 14h 39m of daylight. The shortest is 22 December, with 9h 41m. The swing between them is 4h 58m. This is the latitude band where the difference between summer and winter evenings is most obvious.
The earliest sunrise and the latest sunset do not land on the longest day. In Daejeon the sun comes up earliest on 14 June at 05:12, while the latest sunset waits until 30 June at 19:52. The equation of time is what separates them: the Earth's elliptical orbit and axial tilt move solar noon back and forth by several minutes over the year.
The sky stays usably light for a while after the sun goes down. In Daejeon that civil twilight runs about 26 minutes at the equinox.
Every figure in this section is computed from the city's own latitude, longitude and IANA time zone using NOAA solar algorithms (Spencer, 1971), accurate to about ±2 arcminutes below 65° latitude.
The official timezone for Daejeon, South Korea is Asia/Seoul with a current UTC offset of UTC+9.
Daejeon has an estimated population of 1.5M and is located at coordinates 36.35°N, 127.38°E.
Daejeon gets 14h 39m of daylight on its longest day and 9h 41m on its shortest, averaging 12h 11m a day across the year.
Solar noon in Daejeon falls at about 12:30 on UTC+9 standard time, because the city sits 7.6° from the meridian its zone is built on.
A City of Research Institutes: Daedeok Innopolis holds around 30 government research institutes and dozens of corporate labs, concentrated deliberately from the 1970s.