From
Seoul
South Korea
10:51 AM
Mon, Aug 17
UTC+9Asia/Seoul
Time Difference
Seoul vs Tokyo Time Difference
Compare the current local time in Seoul, South Korea and Tokyo, Japan.
Live local timeDST awareUTC offsets
Current difference
Seoul and Tokyo currently have the same local time.
This difference is calculated using the current UTC offsets for both locations and automatically reflects daylight-saving changes.
24-hour comparison
Compare Seoul and Tokyo hour by hour
See how a full local day in Seoul, South Korea maps to Tokyo, Japan. TimeInOne automatically accounts for timezone offsets, date changes and daylight-saving transitions.
Best working-hours overlap
9:00 AM – 6:00 PM in Seoul
corresponds to 9:00 AM – 6:00 PM in Tokyo.
Seoul
Asia/Seoul
Tokyo
Asia/Tokyo
Availability
12:00 AM
Mon, Aug 17
12:00 AM
Mon, Aug 17
Night
1:00 AM
Mon, Aug 17
1:00 AM
Mon, Aug 17
Night
2:00 AM
Mon, Aug 17
2:00 AM
Mon, Aug 17
Night
3:00 AM
Mon, Aug 17
3:00 AM
Mon, Aug 17
Night
4:00 AM
Mon, Aug 17
4:00 AM
Mon, Aug 17
Night
5:00 AM
Mon, Aug 17
5:00 AM
Mon, Aug 17
Night
6:00 AM
Mon, Aug 17
6:00 AM
Mon, Aug 17
Night
7:00 AM
Mon, Aug 17
7:00 AM
Mon, Aug 17
Possible
8:00 AM
Mon, Aug 17
8:00 AM
Mon, Aug 17
Possible
9:00 AM
Mon, Aug 17
9:00 AM
Mon, Aug 17
Good overlap
10:00 AM
Mon, Aug 17
10:00 AM
Mon, Aug 17
Good overlap
11:00 AM
Mon, Aug 17
11:00 AM
Mon, Aug 17
Good overlap
12:00 PM
Mon, Aug 17
12:00 PM
Mon, Aug 17
Good overlap
1:00 PM
Mon, Aug 17
1:00 PM
Mon, Aug 17
Good overlap
2:00 PM
Mon, Aug 17
2:00 PM
Mon, Aug 17
Good overlap
3:00 PM
Mon, Aug 17
3:00 PM
Mon, Aug 17
Good overlap
4:00 PM
Mon, Aug 17
4:00 PM
Mon, Aug 17
Good overlap
5:00 PM
Mon, Aug 17
5:00 PM
Mon, Aug 17
Good overlap
6:00 PM
Mon, Aug 17
6:00 PM
Mon, Aug 17
Possible
7:00 PM
Mon, Aug 17
7:00 PM
Mon, Aug 17
Possible
8:00 PM
Mon, Aug 17
8:00 PM
Mon, Aug 17
Possible
9:00 PM
Mon, Aug 17
9:00 PM
Mon, Aug 17
Night
10:00 PM
Mon, Aug 17
10:00 PM
Mon, Aug 17
Night
11:00 PM
Mon, Aug 17
11:00 PM
Mon, Aug 17
Night
Working-hour labels use a general 9:00 AM–6:00 PM schedule. Individual schedules may differ.
On daylight-saving transition dates, a local day can contain 23 or 25 real hours instead of 24.
Call planning
Best time to call Tokyo from Seoul
Compare typical business hours in Seoul, South Korea and Tokyo, Japan to find a practical time for calls, meetings or international coordination.
Seoul
10:51 AM – 6:51 PM
South Korea
Best overlap
Tokyo
10:51 AM – 6:51 PM
Japan
The best time to call Tokyo from Seoul is between 10:51 AM and 6:51 PM in Seoul. This corresponds to 10:51 AM – 6:51 PM in Tokyo.
Other reasonable windows
Seoul
6:51 PM – 9:51 PM
Tokyo
6:51 PM – 9:51 PM
Recommendations use typical 9:00 AM–6:00 PM business hours and a broader 7:00 AM–9:00 PM acceptable calling window. Individual schedules may differ.
Time difference explained
Seoul and Tokyo time difference explained
Current local-time relationship
Seoul and Tokyo currently share the same local time.
Seoul uses Asia/Seoul and currently has an offset of UTC+9. Tokyo uses Asia/Tokyo and currently has an offset of UTC+9.
Working-hours overlap
For a typical 9:00 AM–6:00 PM workday, the cities overlap from 9:00 AM to 6:00 PM in Seoul, corresponding to 9:00 AM–6:00 PM in Tokyo.
Because UTC offsets can change during the year, always check the selected date when planning an important international call or meeting.
Convert a specific time
Need more than the current difference?
Convert a specific date and local time between Seoul and Tokyo.
Open time converterLocal clocks
Explore each city
FAQ
Seoul to Tokyo time difference FAQ
Common questions about the current time difference, UTC offsets, daylight-saving changes and practical calling hours between Seoul and Tokyo.
What is the time difference between Seoul and Tokyo?
Seoul, South Korea and Tokyo, Japan currently have the same local time.
Is Tokyo ahead of or behind Seoul?
Seoul and Tokyo currently have the same local time.
What time is it in Tokyo when it is 9:00 AM in Seoul?
Using the current UTC offsets, 9:00 AM in Seoul corresponds to 9:00 AM in Tokyo. The exact difference can change when daylight-saving rules change.
What is the best time to call Tokyo from Seoul?
Typical 9:00 AM–6:00 PM business hours overlap between 9:00 AM and 6:00 PM in Seoul. This corresponds to 9:00 AM–6:00 PM in Tokyo.
Can the time difference between Seoul and Tokyo change?
Yes. The time difference can change if Seoul or Tokyo changes its UTC offset because of daylight-saving or other local time-zone rules. TimeInOne uses the IANA zones Asia/Seoul and Asia/Tokyo for date-aware calculations.