Current time in Seongnam-si
Friday, 17 July 2026
Seongnam-si, South Korea · Asia/Seoul · UTC+09:00
Time-zone identity for Seongnam-si
- IANA zone
Asia/Seoul- UTC offset now
- UTC+09:00
- Current zone label
- GMT+9
- Clock-change status
- No UTC offset change was found in the next 370 days.
Seongnam-si is currently 9 hours ahead of UTC. The named zone, rather than the offset alone, should be used for future dates.
Clock changes in Seongnam-si
370-day checked horizon
No UTC offset change was found through Thursday, 22 July 2027 in runtime time-zone data 2026b.
Weather now
Weather in Seongnam-si
Conditions near Seongnam-si and a 3-day forecast. Local conditions can differ across large urban areas, mountains and coastlines.
Overcast
- Feels like
- 29°C
- Humidity
- 83%
- Wind
- 5.4 km/h E
- Recent precipitation
- 0 mm
3-day forecast
- Sunny22°C to 34°C73% chance of precipitationWind up to 8.6 km/h
- Light rain shower23°C to 26°C93% chance of precipitationWind up to 8.6 km/h
- Patchy rain nearby22°C to 29°C83% chance of precipitationWind up to 6.1 km/h
Forecast valid from 10:15 local time. Updated 2026-07-17T01:35:46.526Z; refresh due by 2026-07-17T01:50:46.526Z.
Time-zone history
UTC offset changes for Seongnam-si
A bounded record of offset transitions calculated for Asia/Seoul, covering 2021 through 2031. Events are offset changes; their legal or daylight-saving cause is not inferred.
Previous 5 years
No UTC offset transition was found in the previous 5 years.
Next 5 years
No UTC offset transition was found in the next 5 years.
Dates are calculated from IANA time-zone rules. The calculation checks for offset changes throughout the displayed period and resolves each change to the nearest second.
Sun and Moon today
Sun and Moon in Seongnam-si
Daily astronomical events for Friday, 17 July 2026, expressed in Asia/Seoul local time. Polar-day or polar-night events may be unavailable on a particular date.
Sun
- Sunrise
- 05:24
- Sunset
- 19:51
- Solar noon
- 12:38
- Civil twilight
- 04:53–20:21
Moon
- Moonrise
- 08:23
- Moonset
- 21:50
- Phase
- Waxing Crescent
- Illumination
- 10%
Location context
About Seongnam-si
Location details for Seongnam-si in Gyeonggi-do, South Korea.
- Administrative area
- Gyeonggi-do, South Korea
- Population
- 914,832
- Coordinates
- 37.4386° N, 127.1378° E. The elevation is 80 metres.
Country context
South Korea at a glance
Country information for South Korea. The listed time zones reflect cities available in this directory and may not include every territorial exception.
- Capital
- Seoul
- Country codes
- KR · KOR · 410
- Population
- 51,635,256
- Currency
- South Korean Won (KRW)
- Calling code
- +82
- Languages
- Korean (South Korea) and English
- Time zones represented
- 1 time zone is used by cities in this directory: Asia/Seoul.
Nearby city clocks
Cities near Seongnam-si
Nearby cities are ordered by approximate straight-line distance from Seongnam-si. Times are calculated for the same instant shown above.
- GwangjuGyeonggi-do, South Korea11 km east
Asia/SeoulSame local time - HanamGyeonggi-do, South Korea13 km northeast
Asia/SeoulSame local time - Guri-siGyeonggi-do, South Korea18 km north
Asia/SeoulSame local time - WabuGyeonggi-do, South Korea18 km northeast
Asia/SeoulSame local time - GunpoGyeonggi-do, South Korea19 km southwest
Asia/SeoulSame local time - UiwangGyeonggi-do, South Korea19 km southwest
Asia/SeoulSame local time
Data and methodology
The current time is calculated for Asia/Seoul when the page loads. The offset history covers five years before and after today using IANA time-zone data version 2026b. Future changes are hidden when a newer published rule is not yet available to the calculator. GeoNames ID 1897000 supplies the location and coordinates; nearby distances are straight-line estimates.
Place data 2026-07-15_01-57-51-849; time calculated 2026-07-17T01:35:46.508Z; IANA time-zone data 2026b; weather retrieved 2026-07-17T01:35:46.526Z; astronomy retrieved 2026-07-17T01:35:46.524Z
View calculation details and sources
- GeoNames cities15000GeoNames · version 2026-07-15_01-57-51-849 · CC BY 4.0 · accessedPlace and country names, administrative areas, coordinates, population, capital, codes, currency, calling codes and languages.
- IANA Time Zone DatabaseInternet Assigned Numbers Authority · version 2026b · Public domain · accessedTime-zone names, UTC offsets and clock changes.
- Unicode Common Locale Data RepositoryUnicode Consortium · version 48.0 · Unicode License v3 · accessedEnglish display names for countries, currencies and languages.
- Complete Sun and Moon Data for One DayUnited States Naval Observatory · version API 4.0.1 · U.S. Government work · accessedDaily sunrise, sunset, civil twilight, solar transit, moonrise, moonset, phase and illumination.
- Weather and Geolocation APIWeatherAPI.com · version Forecast API v1; free plan · WeatherAPI.com terms; commercial and non-commercial use permitted by plan · accessedCurrent weather conditions, the next 24 hours and a three-day forecast.