Live Synchronized Time Difference
TokyotoSeoulTime Difference
🇯🇵
Tokyo
Japan (GMT+9)00:10:18UTC+9:00
🇰🇷
Seoul
South Korea (GMT+9)00:10:18UTC+9:00
Direct Distance1,149 km (714 miles)
Estimated Flight Time~1.9 hours
Business Overlap8 overlapping hours (9am–5pm)
Mutual Working Window: 8 Overlapping Hours
Recommended calling window between Tokyo and Seoul
Off-Peak Calling Window
Tokyo Time
9:00 AM – 5:00 PM
Seoul Time
9:00 AM – 5:00 PM
Both locations share 8 overlapping standard business hours (9:00 AM – 5:00 PM). This is the premier window for real-time video conferences, corporate calls, and instant collaboration without outside-hours disruption.
24-Hour Schedule Conversion Matrix
Compare every hour of the day between Tokyo and Seoul.
Work (9am-5pm)ShoulderSleep / Off
| Tokyo Time (Japan) | Seoul Time (South Korea) | Status & Recommendation |
|---|---|---|
| 00:00AM | 00:00AM | ⚪ Outside Work Hours |
| 01:00AM | 01:00AM | ⚪ Outside Work Hours |
| 02:00AM | 02:00AM | ⚪ Outside Work Hours |
| 03:00AM | 03:00AM | ⚪ Outside Work Hours |
| 04:00AM | 04:00AM | ⚪ Outside Work Hours |
| 05:00AM | 05:00AM | ⚪ Outside Work Hours |
| 06:00AM | 06:00AM | ⚪ Outside Work Hours |
| 07:00AM | 07:00AM | ⚪ Outside Work Hours |
| 08:00AM | 08:00AM | ⚪ Outside Work Hours |
| 09:00AM | 09:00AM | 🟢 Ideal Meeting Window |
| 10:00AM | 10:00AM | 🟢 Ideal Meeting Window |
| 11:00AM | 11:00AM | 🟢 Ideal Meeting Window |
| 12:00PM | 12:00PM | 🟢 Ideal Meeting Window |
| 13:00PM | 13:00PM | 🟢 Ideal Meeting Window |
| 14:00PM | 14:00PM | 🟢 Ideal Meeting Window |
| 15:00PM | 15:00PM | 🟢 Ideal Meeting Window |
| 16:00PM | 16:00PM | 🟢 Ideal Meeting Window |
| 17:00PM | 17:00PM | ⚪ Outside Work Hours |
| 18:00PM | 18:00PM | ⚪ Outside Work Hours |
| 19:00PM | 19:00PM | ⚪ Outside Work Hours |
| 20:00PM | 20:00PM | ⚪ Outside Work Hours |
| 21:00PM | 21:00PM | ⚪ Outside Work Hours |
| 22:00PM | 22:00PM | ⚪ Outside Work Hours |
| 23:00PM | 23:00PM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between Tokyo and Seoul?
Seoul and Tokyo are in the same time offset.
What is the best time to schedule a cross-border meeting between Tokyo and Seoul?
There are 8 overlapping standard business hours (09:00 - 17:00) between Tokyo and Seoul. The optimal window is when both parties are in their core working shifts.
Does daylight saving time (DST) affect the time difference between Tokyo and Seoul?
Yes. If either Japan or South Korea observes seasonal Daylight Saving Time transitions, the offset difference shifts by one hour on scheduled transition dates.