Geographic position of Seongnam-si

Seongnam-si is located in the Northern Hemisphere and the Eastern Hemisphere. Its coordinates are 37.4386° N, 127.1378° E.

Seongnam-si lies in the temperate latitude zone. This latitude affects daylight length, seasonal variation and how local solar time compares with standard clock time.

Population Ranking of Seongnam-si

With a population of 914,832, Seongnam-si ranks as the 11th most populous city in South Korea, out of 146 cities tracked on this site.

Daylight saving time in Seongnam-si

Seongnam-si uses the IANA time zone identifier Asia/Seoul. The current local offset is UTC+9 / KST.

Seongnam-si does not observe daylight saving time in 2026. The UTC offset remains stable throughout the year.

Best Time to Call Seongnam-si

Business hours in Seongnam-si (9 AM-5 PM local time) fall at these local times elsewhere:

• New York: 8:00 PM (previous day) - 4:00 AM ( Partial overlap)
• Los Angeles: 5:00 PM (previous day) - 1:00 AM ( Partial overlap)
• London: 1:00 AM - 9:00 AM ( Outside normal hours)
• Dubai: 4:00 AM - 12:00 PM ( Outside normal hours)
• Mumbai: 5:30 AM - 1:30 PM ( Partial overlap)
• Tokyo: 9:00 AM - 5:00 PM ( Convenient)
• Sydney: 10:00 AM - 6:00 PM ( Convenient)

Times shown reflect current UTC offsets and may shift by up to an hour around daylight saving transitions.

Time now in other cities in South Korea

Frequently Asked Questions