Check the current local time in Seoul, South Korea. Seoul uses the Asia/Seoul time zone, with KST (UTC +9:00) during standard time.
KST
UTC +9:00
Used outside daylight saving time
Not Observed
Year-round standard time
No DST change
Standard time year-round
No seasonal offset changes
Seoul runs on Korean Standard Time (KST, UTC+9) — same offset as Tokyo (JST). No DST. Business hours 9 AM - 6 PM formally, with Korean corporate culture retaining strong presence expectations (Hoesik / after-work gatherings extending the effective day). KOSPI (Korea Composite Stock Price Index) trading runs 9 AM - 3:30 PM KST.
East Asia — China, Japan, Korea, Taiwan, Mongolia — sits mostly at UTC+8 (China's single-timezone policy across the whole country) or UTC+9 (Japan, Korea). None observe DST anymore (Japan ended its post-WW2 experiment in the 1950s), so offsets are fixed. The region's single-large-zone footprint makes cross-Asia coordination unusually easy compared to Europe or North America.
Seoul is located in South Korea and uses the Asia/Seoul time zone. For anyone coordinating calls or meetings internationally, the key question is rarely "what time is it" — it's which hours in Seoul overlap with your own working day. Use the world clock comparison further down the page to see at a glance how Seoul aligns with other major cities.
Scheduling tip: Always reference a city name in calendar invites rather than a fixed UTC offset. Calendar apps like Google Calendar and Outlook will automatically adjust for any clock changes on both ends, so your meeting stays at the intended local time for everyone involved.
Local Exchange
These cities share the same time zone as Seoul — when it's 2:58:40 PM here, it's the same local time there.
Major cities in South Korea — some may be in a different time zone than Seoul if the country spans multiple zones.
Find the perfect overlap time between your timezone and Seoul. Our calculator shows when business hours align.
Calculate Best Calling TimeEverything you need to know about Seoul time
