Currently on KST (UTC+9). No clock changes are scheduled in the time zone database.
Time zone in Seoul
| Country | South Korea |
|---|---|
| IANA time zone | Asia/Seoul |
| All year | KST (UTC+9), no daylight saving time |
| Same clock as | Tokyo, Osaka |
What to know about time in Seoul
South Korea uses Korea Standard Time (KST, UTC+9) all year. It last used daylight saving time in 1988.
Clock changes in Seoul in 2026 and 2027
Seoul does not change its clocks in 2026 or 2027. The offset stays at KST (UTC+9) all year.
Time difference between Seoul and other cities
The table shows how far each city is ahead of or behind Seoul, and how that changes when either place changes its clocks between now and the end of 2027.
| City | Now | Through 2026 and 2027 |
|---|---|---|
| London | 8 hours behind | 8 hours behind until 25 Oct 2026; 9 hours behind 25 Oct 2026 to 28 Mar 2027; 8 hours behind 28 Mar 2027 to 31 Oct 2027; 9 hours behind from 31 Oct 2027 |
| New York | 13 hours behind | 13 hours behind until 1 Nov 2026; 14 hours behind 1 Nov 2026 to 14 Mar 2027; 13 hours behind 14 Mar 2027 to 7 Nov 2027; 14 hours behind from 7 Nov 2027 |
| Los Angeles | 16 hours behind | 16 hours behind until 1 Nov 2026; 17 hours behind 1 Nov 2026 to 14 Mar 2027; 16 hours behind 14 Mar 2027 to 7 Nov 2027; 17 hours behind from 7 Nov 2027 |
| Dubai | 5 hours behind | 5 hours behind all year (no difference in clock changes) |
| Mumbai | 3½ hours behind | 3½ hours behind all year (no difference in clock changes) |
| Singapore | 1 hour behind | 1 hour behind all year (no difference in clock changes) |
| Tokyo | same time | same time all year |
| Sydney | 2 hours ahead | 2 hours ahead until 4 Apr 2027; 1 hour ahead 4 Apr 2027 to 3 Oct 2027; 2 hours ahead from 3 Oct 2027 |
Working hours overlap
How much of a 09:00–17:00 working day in Seoul overlaps with the same hours elsewhere, using a mid-week day in January and July 2027:
- London: in January, none; in July, none.
- New York: in January, none; in July, none.
Plan around Seoul time
- Convert a time in Seoul to another city, on any date
- Find a meeting time that works for Seoul and up to four other places
- All time zones in South Korea