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See all of South Korea (KST)

Time in Osan, South Korea now

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KST Korean Standard Time UTC+9 No DST
Country Flag - South Korea A white field with a red and blue Taegeuk in the center, surrounded by four black trigrams from the I Ching in each corner.

Osan

Gyeonggi-do, South Korea

29 Jul 2026

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South Korea: common questions

What is the current time in Osan, South Korea?

Osan operates on Korea Standard Time (KST), which is UTC+9. To find the current time in Osan, add 9 hours to Coordinated Universal Time (UTC). South Korea does not observe Daylight Saving Time, so the time remains consistent throughout the year.

Does Osan, South Korea observe Daylight Saving Time?

No, Osan and the rest of South Korea do not observe Daylight Saving Time. The country stays on Korea Standard Time (KST), which is UTC+9, throughout the year.

What is the time difference between Osan and major world cities?

London (GMT/BST): Osan is 9 hours ahead of London when the UK is on GMT (winter), and 8 hours ahead when the UK is on BST (summer).

New York (EST/EDT): Osan is 14 hours ahead of New York when NY is on EST (winter), and 13 hours ahead when NY is on EDT (summer).

Tokyo (JST): Osan is the same time as Tokyo, as both use UTC+9.

What are other major cities in South Korea?

South Korea's major cities include Seoul (the capital), Busan, Incheon, Daegu, Daejeon, and Gwangju. Osan is a city in Gyeonggi Province, located south of Seoul.

What is Osan, South Korea known for?

Osan is a city in Gyeonggi Province, South Korea, known for Osan Air Base (a major U.S. Air Force base), its proximity to Seoul, and as a growing residential and commercial area. The city is also famous for its strategic location in the Seoul metropolitan area and its role in the region's defense infrastructure.