Seoul to Tokyo Time Converter
Seoul and Tokyo are in the same time zone · Seoul UTC+9 · Tokyo UTC+9
Best time to connect
Working hours overlap: 9am–6pm Seoul time. That's the window when both cities are in a typical 9-to-5 workday — ideal for calls and meetings.
Seoul ↔ Tokyo time difference explained
Seoul and Tokyo are in the same time zone. Seoul, South Korea runs on Asia/Seoul (UTC+9) while Tokyo, Japan uses Asia/Tokyo (UTC+9). The converter above stays accurate through daylight saving changes because it reads live UTC offsets rather than fixed values. Whether you're coordinating remote work, booking a call, or planning travel between Seoul and Tokyo, the working-hours overlap panel shows exactly when both cities are awake and at their desks.
Need more than the time? See the full Seoul and Tokyo remote-work guides — cost of living, internet speed and visa options.
More Seoul conversions
Hour-by-hour: Seoul to Tokyo
When it's this time in Seoul, here's the time in Tokyo — all 24 hours, in both 24-hour and 12-hour (am/pm) format.
Seoul keeps Korea Standard Time (KST, UTC+9) all year. Tokyo keeps Japan Standard Time (JST, UTC+9) all year. Both are on the same offset, so the clock reads the same hour in each city.
Frequently asked questions
What is the time difference between Seoul and Tokyo?
Seoul and Tokyo are in the same time zone. Seoul is UTC+9 and Tokyo is UTC+9. The live converter above updates every second and accounts for daylight saving time automatically.
When it's 9am in Seoul, what time is it in Tokyo?
Both cities share the same time, so 9am in Seoul is 9am in Tokyo.
What's the best time to schedule a call between Seoul and Tokyo?
The "best time to connect" panel above shows the live working-hours overlap — the window when both Seoul and Tokyo are within a typical 9-to-5 workday, ideal for meetings and calls.
Do Seoul and Tokyo observe daylight saving time?
Both cities' current UTC offsets are shown live above and adjust automatically when either region enters or leaves daylight saving time, so the converter is always accurate.