Current Time in Seongnam-si, Gyeonggi-do, South Korea
12:20:23 AM
00:20:23
KST (Korea Standard Time) · UTC+09:00
Asia/Seoul
Time zone details
Seongnam-si does not observe daylight saving time in 2026
Daylight in Seongnam-si
Location facts
Place
- Country
- South Korea
- Administrative area
- Gyeonggi-do
- Place type
- Populated place
- Country currency
- South Korean Won (KRW)
Practical
- Languages
- Korean, English
- Dialing code
- +82
- Population
- 914,832
- Elevation
- Approximately 80 m (DEM estimate)
Geography
- Geographic coordinates
- 37° 26' N / 127° 08' E
Convert Seongnam-si time
Compare Seongnam-si with another city or time zone
Popular conversions (current offsets)
All times shown relative to Seongnam-si local time
Clock changes in Seongnam-si
2026
No clock or time-zone designation changes in 2026
Future clock changes, 2027–2030
Sun & Moon details
Sun
- Sunrise
- Solar noon
- Sunset
- Daylight duration
- 12 hr 01 min2 min 23 sec shorter than the previous day
Twilight
- Civil twilight
- –
- Nautical twilight
- –
- Astronomical twilight
- –
View full Sun & Moon detailsHide full Sun & Moon details
Saturday, September 26, 2026
View Seongnam-si on SavvyTime's time-zone map
Sun
- Sunrise
- Sunset
- Day length
- 12 hr 01 min2 min 23 sec shorter than the previous day
- Solar noon
- (51.4° altitude)
Civil twilight
- Dawn to dusk
- –
Additional twilight
- Nautical dawn to dusk
- –
- Astronomical dawn to dusk
- –
Moon
- Phase
- Full Moon (100% illuminated)
- Moonrise
- Moonset
- Previous principal phase
- First Quarter — Saturday, September 19, 2026 at
- Next principal phase
- Full Moon — Sunday, September 27, 2026 at
Seven-day daylight outlook
| Local date | Sunrise | Sunset | Day length | Daily change |
|---|---|---|---|---|
| 12 hr 01 min | 2 min 23 sec shorter than the previous day | |||
| 11 hr 58 min | 2 min 23 sec shorter than the previous day | |||
| 11 hr 56 min | 2 min 23 sec shorter than the previous day | |||
| 11 hr 54 min | 2 min 22 sec shorter than the previous day | |||
| 11 hr 51 min | 2 min 23 sec shorter than the previous day | |||
| 11 hr 49 min | 2 min 22 sec shorter than the previous day | |||
| 11 hr 46 min | 2 min 23 sec shorter than the previous day |
Weather forecast for Seongnam-si
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Plan around Seongnam-si
Time context
Seongnam-si follows the same clock and daylight-saving rules as Seoul
Current time offsetUTC+09:00 (KST)
View time differencesUpcoming national public holidays in South Korea
- National Foundation Day
- National Foundation Day (substitute day)
- Hangul Day
Nearby scheduled airports for Seongnam-si, Gyeonggi-do, South Korea
Seoul Gimpo International AirportGMPLarge airport · Serves Seoul33.4 km west-northwest
Source: OurAirports record · GMP / RKSS
About 33.4 km (20.8 mi) west-northwest of Seongnam-si
Scheduled airline service in source data
Incheon International AirportICNLarge airport · Serves Seoul60.7 km west
Source: OurAirports record · ICN / RKSI
About 60.7 km (37.7 mi) west of Seongnam-si
Scheduled airline service in source data
Wonju Airport / Hoengseong Air Base (K-38/K-46)WJUMedium airport · Serves Wonju72.6 km east
Source: OurAirports record · WJU / RKNW
About 72.6 km (45.1 mi) east of Seongnam-si
Scheduled airline service in source data
Nearby places
Frequently asked questions
- What time zone is Seongnam-si in?
- Seongnam-si currently uses Korea Standard Time (KST). Its IANA time zone is Asia/Seoul.
- When is the next clock change in Seongnam-si?
- No clock changes are scheduled for Seongnam-si in the next 12 months
- Does Seongnam-si observe daylight saving time?
- Seongnam-si does not observe daylight saving time in 2026
- What is the UTC offset in Seongnam-si right now?
- Seongnam-si is currently UTC+09:00