Seoul to Tokyo Time Difference
Tokyo and Seoul are on the same clock time. There is no time difference between them right now.
Is There a Time Difference Between Seoul and Tokyo?
No — Tokyo and Seoul are on exactly the same clock. Whatever the time is in Seoul, it is the same in Tokyo, so nothing needs converting between them.
Best Time to Call Seoul and Tokyo
Both cities are inside normal business hours between 9:00 AM and 5:00 PM in Seoul — that's 9:00 AM to 5:00 PM in Tokyo. That's an 8-hour window, so a call fits comfortably in either side's working day.
both at work Seoul only Tokyo only neither — hours shown along the strip are Seoul local time.
Convert a Specific Time
Pick any date and time in Seoul to see the exact equivalent in Tokyo.
Common Times Converted
Seoul time on the left, Tokyo time on the right.
Seoul to Tokyo: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Seoul. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Seoul | Tokyo | Working hours |
|---|---|---|
| 12:00 AM | 12:00 AM | — |
| 1:00 AM | 1:00 AM | — |
| 2:00 AM | 2:00 AM | — |
| 3:00 AM | 3:00 AM | — |
| 4:00 AM | 4:00 AM | — |
| 5:00 AM | 5:00 AM | — |
| 6:00 AM | 6:00 AM | — |
| 7:00 AM | 7:00 AM | — |
| 8:00 AM | 8:00 AM | — |
| 9:00 AM | 9:00 AM | Both cities |
| 10:00 AM | 10:00 AM | Both cities |
| 11:00 AM | 11:00 AM | Both cities |
| 12:00 PM | 12:00 PM | Both cities |
| 1:00 PM | 1:00 PM | Both cities |
| 2:00 PM | 2:00 PM | Both cities |
| 3:00 PM | 3:00 PM | Both cities |
| 4:00 PM | 4:00 PM | Both cities |
| 5:00 PM | 5:00 PM | — |
| 6:00 PM | 6:00 PM | — |
| 7:00 PM | 7:00 PM | — |
| 8:00 PM | 8:00 PM | — |
| 9:00 PM | 9:00 PM | — |
| 10:00 PM | 10:00 PM | — |
| 11:00 PM | 11:00 PM | — |
Understanding the Seoul – Tokyo Time Difference
Seoul runs on Asia/Seoul, currently KST (UTC+9:00). Tokyo runs on Asia/Tokyo, currently JST (UTC+9:00). Both offsets are identical right now, which is why the two cities show the same clock time.
This difference holds steady all year — no clock change in either city moves it. A meeting time that works in January works just as well in July.
Seoul today
Tokyo today
Frequently Asked Questions
What is the time difference between Seoul and Tokyo?
There is currently no time difference between Seoul and Tokyo. Both cities are on the same clock time right now.
What time is it in Tokyo when it is 9:00 AM in Seoul?
When it is 9:00 AM in Seoul, it is 9:00 AM in Tokyo.
What is the best time to call between Seoul and Tokyo?
Between 9:00 AM and 5:00 PM Seoul time, which is 9:00 AM to 5:00 PM in Tokyo. Both cities are inside normal business hours during that window.
Does the time difference between Seoul and Tokyo change during the year?
No. The difference between Seoul and Tokyo stays fixed all year round — no clock change in either city moves it.
What time zones are Seoul and Tokyo in?
Seoul uses the Asia/Seoul time zone, currently KST (UTC+9:00). Tokyo uses Asia/Tokyo, currently JST (UTC+9:00).