Osan is located in South Korea (Osan-si, Gyeonggi-do) and time zone Asia/Seoul.
Places nearby are Suwon, Pyeongtaek and Hwaseong-si.
Incheon is 44 km away, Seoul is 46 km away and Daejeon is 92 km away as the crow flies.
Distances from Osan to the most important cities in South Korea and the world.
37.1522200°
127.0705600°
United States Air Force - Korea Air Force base in Pyeongtaek, South Korea
https://en.wikipedia.org/wiki/Osan_Air_BaseMunicipality in Rhineland-Palatinate, Germany
https://en.wikipedia.org/wiki/Osann-Monzel