Tokyo and Seongnam are in the same timezone. You can call anytime during standard business hours (9 AM – 5 PM). No timezone conversion needed.
Call between 9 AM–5 PM Tokyo time. This is 9 AM–5 PM in Seongnam.
Tokyo and Seongnam share 8 hours of overlapping business hours (9 AM – 5 PM local time).
The best time to call Seongnam from Tokyo is 9 AM–5 PM Tokyo time. This gives you 8 hours of business hours overlap.
Tokyo and Seongnam are in the same timezone.
Since Tokyo and Seongnam share similar business hours, you can call during any standard working time.
Yes, Tokyo and Seongnam have approximately 8 hours of overlapping business hours per day.
You have 8 hours of business hours overlap — scheduling calls is easy.
Both in business hours Both awake One outside comfort zone Sleeping hours
Tokyo: 9 AM–5 PM GMT+9
Seongnam: 9 AM–5 PM GMT+9
| Tokyo (GMT+9) | Seongnam (GMT+9) | Status |
|---|---|---|
| 7 AM | 7 AM | 🟡 They're awake |
| 8 AM | 8 AM | 🟡 They're awake |
| 9 AM | 9 AM | ✅ Both in office |
| 10 AM | 10 AM | ✅ Both in office |
| 11 AM | 11 AM | ✅ Both in office |
| 12 PM | 12 PM | ✅ Both in office |
| 1 PM | 1 PM | ✅ Both in office |
| 2 PM | 2 PM | ✅ Both in office |
| 3 PM | 3 PM | ✅ Both in office |
| 4 PM | 4 PM | ✅ Both in office |
| 5 PM | 5 PM | 🟡 They're awake |
| 6 PM | 6 PM | 🟡 They're awake |
| 7 PM | 7 PM | 🟡 They're awake |
| 8 PM | 8 PM | 🟡 They're awake |
| 9 PM | 9 PM | 🟡 They're awake |