Osan in numbers
- Coordinates
- 37.1522, 127.0710
- Population
- 238 788
- Region
- Gyeonggi-do
- Country
- South Korea, Asia
- Capital
- Seoul — 47 km away
- Same name
- 51 more places in the world share this name
What time is it in Osan, Gyeonggi-do, South Korea
The current local time in Osan, Gyeonggi-do, South Korea is displayed here for the Asia/Seoul time zone (+9).
Osan, South Korea
Saturday, 17 October 2026
UTC+9 · Asia/Seoul
Local time in Osan
UTC+9 · no daylight saving time
What the clock shows right now in Osan.
The sun today
Sunrise 6:42 AM Solar noon 12:18 PM Sunset 5:55 PM Daylight 11 h 13 min Night 12 h 47 min Civil twilight 6:15 AM – 6:21 PM
Weather in Osan right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Osan and its neighbours
Postal codes
- 18135 오산시 — 0.1 km away
- 18136 오산시 — 0.2 km away
- 18138 오산시 — 0.5 km away
- 18133 오산시 — 0.5 km away
- 18129 오산시 — 0.5 km away
- 18134 오산시 — 0.6 km away
- 18139 오산시 — 0.6 km away
- 18132 오산시 — 0.7 km away
- 18141 오산시 — 0.8 km away
- 18115 오산시 — 0.8 km away
- 18130 오산시 — 0.8 km away
- 18140 오산시 — 0.9 km away
Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.
Largest cities in Gyeonggi-do
- Suwon 1 234 582
- Goyang-Si 1 061 752
- Seongnam-Si 914 832
- Bucheon-Si 850 731
- Hwaseong-Si 640 890
- Ansan-Si 623 256
Other places named Osan
- Osan Aragon, Spain
- Osan Central Sulawesi, Indonesia
- Osan Maluku, Indonesia
- Osan P'yŏngan-bukto, North Korea
- Osan North Hamgyong, North Korea
Same time zone — Asia/Seoul
- Seoul South Korea
- Busan South Korea
- Incheon South Korea
- Daegu South Korea
- Daejeon South Korea
- Gwangju South Korea
Nearby places
- Kohyon — 3.0 km
- Sil-Li — 6.2 km
- Parun'Gol — 7.8 km
- Kwaerangi — 8.5 km
- Munhak-Tong — 9.2 km
- Sangdokkok — 10.0 km
About the time in Osan
The time you see for Osan is also correct for Kohyon and Sil-Li.
Coverage of Osan by postal code amounts to 12 entries.
Osan falls within Asia/Seoul, which places it UTC+9 from UTC. Daylight saving observed: No.
Osan greets the sun at 6:42 AM and loses it at 5:55 PM today. Daylight runs to 11 h 13 min.
Questions and answers
- Should Asia/Seoul be used as the time zone for Osan?
- Yes, Osan uses Asia/Seoul, whose offset is +9.
- Are seasonal time changes observed in Osan?
- No.
- What time will the sun set in Osan today?
- Today it sets at 5:55 PM.