Time Difference: Istanbul to Seoul
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Istanbul vs Seoul timezone guide
Istanbul (Turkey) uses the Europe/Istanbul timezone at UTC+3, while Seoul (South Korea) uses Asia/Seoul at UTC+9. This means Seoul is 6 hours ahead of Istanbul (based on standard offsets — the live difference above accounts for daylight saving time).
Best meeting times between Istanbul and Seoul
Standard 9-to-5 working hours overlap by 2 hours per day. The shared window is 9am–11am in Istanbul, which is 3pm–5pm in Seoul. Schedule recurring meetings inside that window and both teams stay inside standard working hours.
Hour-by-hour planner
| Istanbul | Seoul | Status |
|---|---|---|
| 6am | 12pm | One side outside 9-to-5 but still awake |
| 7am | 1pm | One side outside 9-to-5 but still awake |
| 8am | 2pm | One side outside 9-to-5 but still awake |
| 9am | 3pm | Both at work — ideal meeting time |
| 10am | 4pm | Both at work — ideal meeting time |
| 11am | 5pm | One side outside 9-to-5 but still awake |
| 12pm | 6pm | One side outside 9-to-5 but still awake |
| 1pm | 7pm | One side outside 9-to-5 but still awake |
| 2pm | 8pm | One side outside 9-to-5 but still awake |
| 3pm | 9pm | One side outside 9-to-5 but still awake |
| 4pm | 10pm | Istanbul working hours, Seoul late evening |
| 5pm | 11pm | Istanbul evening, Seoul late evening |
| 6pm | 12am | Istanbul evening, Seoul asleep |
| 7pm | 1am | Istanbul evening, Seoul asleep |
| 8pm | 2am | Istanbul evening, Seoul asleep |
| 9pm | 3am | Istanbul evening, Seoul asleep |
| 10pm | 4am | Istanbul late evening, Seoul asleep |
Green = standard working hours (9 AM – 5 PM). Amber = early (6–9 AM). Orange = evening (5–10 PM). Grey = asleep or late.
Daylight saving time between Istanbul and Seoul
Neither Istanbul nor Seoul observes daylight saving time. The time difference between them stays at 6 hours behind all year — recurring meetings only need to be scheduled once.
Distance between Istanbul and Seoul
Istanbul and Seoul are 7,954 km apart along the great-circle route. A direct flight takes roughly ~10h 21m, depending on aircraft type, winds, and routing.