Quick facts
Seongnam-si is at latitude 37°26′19.00″N and longitude 127°08′16.01″E (37.438610, 127.137780 in decimal degrees, WGS 84). The point is the city centre listed by GeoNames.
In UTM, Seongnam-si lies in zone 52S (Northern hemisphere), whose central meridian is 129°E. The terrain elevation is about 80 m, from the SRTM elevation model, and the time zone is Asia/Seoul (UTC+9).
| State / region | Gyeonggi Province |
| Country | South Korea |
| Population | 914,832 |
| Elevation | 80 m |
| Time zone | Asia/Seoul (UTC+9) |
| UTM zone | 52S |
Sunrise and sunset in Seongnam-si
Times for 2026 in the Asia/Seoul (UTC+9) time zone, on the equinoxes and solstices.
March 20
- Sunrise
- 06:36
- Sunset
- 18:43
- Daylight
- 12 h 07 min
June 21
- Sunrise
- 05:11
- Sunset
- 19:56
- Daylight
- 14 h 45 min
September 22
- Sunrise
- 06:19
- Sunset
- 18:29
- Daylight
- 12 h 10 min
December 21
- Sunrise
- 07:42
- Sunset
- 17:17
- Daylight
- 9 h 35 min
See another day and the whole month
Frequently asked questions
What are the GPS coordinates of Seongnam-si?
Latitude 37.438610 and longitude 127.137780 in decimal degrees, or 37°26′19.00″N 127°08′16.01″E in degrees, minutes and seconds (WGS 84).
What UTM zone is Seongnam-si in?
Zone 52S (Northern hemisphere). In UTM the city centre is at 52S 335256 4145158.