Osan time: UTC+9 all year
Osan has no clock change scheduled in the next year. The last year with a seasonal offset change was 1988. The offset now is UTC+9.
Osan on 15 October 2026: sunrise 06:39, sunset 17:55, day length 11 h 16 min.
Place| Fact | Value |
|---|
| Time zone | Asia/Seoul |
| Offset | UTC+9 |
| Region | Gyeonggi-do |
| Latitude | 37.1522 |
| Longitude | 127.0706 |
| Population | 238,788 |
Osan has no clock change scheduled in the next year. The last year with a seasonal offset change was 1988. The offset now is UTC+9.
Sun this year| Fact | Value |
|---|
| Longest day | 21 June 2026, 14 h 43 min |
| Shortest day | 22 December 2026, 9 h 36 min |
| Earliest sunrise | 05:11 on 14 June 2026 |
| Latest sunset | 19:55 on 29 June 2026 |
| Golden hour on the longest day | 21 June morning 05:11 to 05:50, evening 19:16 to 19:55 |
Next public holidays| Date | Holiday |
|---|
| 25 December 2026 | 기독탄신일 |
| 1 January 2027 | 신정 |
| 7 February 2027 | 설날 |
Working hours overlap| City | 09:00 to 17:00 |
|---|
| London | Osan and London have no hour that is 09:00 to 17:00 in both cities. |
| New York | Osan and New York have no hour that is 09:00 to 17:00 in both cities. |