Time in Seoul, South Korea
Seoul, South Korea is on Korea Standard Time (KST), UTC+9 all year, with no daylight saving time.
Daylight saving time in Seoul
Seoul does not change its clocks: it stays on UTC+9 all year.
Seoul business hours around the world
9 AM to 5 PM in Seoul is 12:00 AM–8:00 AM UTC on Oct 23, 2026.
| City | Difference | 9:00 AM in Seoul is |
|---|---|---|
| New York | 13 hours behind | 8:00 PM (previous day) |
| Los Angeles | 16 hours behind | 5:00 PM (previous day) |
| London | 8 hours behind | 1:00 AM |
| Paris | 7 hours behind | 2:00 AM |
| Mumbai | 3 hours 30 minutes behind | 5:30 AM |
| Singapore | 1 hour behind | 8:00 AM |
| Tokyo | same time | 9:00 AM |
| Sydney | 2 hours ahead | 11:00 AM |
Cities on the same clock as Seoul
Convert KST (Seoul) to other zones
Questions
What time zone is Seoul in?
Seoul uses the IANA time zone Asia/Seoul, known as Korea Standard Time (KST). It is UTC+9 all year.
Does Seoul observe daylight saving time?
No. Seoul keeps the same clock all year, so its difference to places that do change (such as New York or London) shifts by an hour twice a year.
What is the time difference between Seoul and New York?
On Oct 23, 2026, New York is 13 hours behind Seoul. 9:00 AM in Seoul is 8:00 PM in New York.
What are business hours in Seoul in UTC?
On Oct 23, 2026, 9 AM to 5 PM in Seoul is 12:00 AM–8:00 AM UTC.
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Computed from the IANA time zone database on Oct 23, 2026. Live clocks and the converter use your browser's copy of the same data.