Live Synchronized Time Difference
IstanbultoSeoulTime Difference
🇹🇷
Istanbul
Turkey (GMT+3)18:10:55UTC+3:00
🇰🇷
Seoul
South Korea (GMT+9)00:10:55UTC+9:00
Direct Distance7,954 km (4,942 miles)
Estimated Flight Time~9.9 hours
Business Overlap2 overlapping hours (9am–5pm)
Mutual Working Window: 2 Overlapping Hours
Recommended calling window between Istanbul and Seoul
Off-Peak Calling Window
Istanbul Time
9:00 AM – 11:00 AM
Seoul Time
3:00 PM – 5:00 PM
Both locations share 2 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 Istanbul and Seoul.
Work (9am-5pm)ShoulderSleep / Off
| Istanbul Time (Turkey) | Seoul Time (South Korea) | Status & Recommendation |
|---|---|---|
| 00:00AM | 06:00AM | ⚪ Outside Work Hours |
| 01:00AM | 07:00AM | ⚪ Outside Work Hours |
| 02:00AM | 08:00AM | ⚪ Outside Work Hours |
| 03:00AM | 09:00AM | ⚪ Outside Work Hours |
| 04:00AM | 10:00AM | ⚪ Outside Work Hours |
| 05:00AM | 11:00AM | ⚪ Outside Work Hours |
| 06:00AM | 12:00PM | ⚪ Outside Work Hours |
| 07:00AM | 13:00PM | ⚪ Outside Work Hours |
| 08:00AM | 14:00PM | ⚪ Outside Work Hours |
| 09:00AM | 15:00PM | 🟢 Ideal Meeting Window |
| 10:00AM | 16:00PM | 🟢 Ideal Meeting Window |
| 11:00AM | 17:00PM | 🟡 Feasible (Shoulder Hour) |
| 12:00PM | 18:00PM | 🟡 Feasible (Shoulder Hour) |
| 13:00PM | 19:00PM | 🟡 Feasible (Shoulder Hour) |
| 14:00PM | 20:00PM | 🟡 Feasible (Shoulder Hour) |
| 15:00PM | 21:00PM | ⚪ Outside Work Hours |
| 16:00PM | 22:00PM | ⚪ Outside Work Hours |
| 17:00PM | 23:00PM | ⚪ Outside Work Hours |
| 18:00PM | 00:00AM | ⚪ Outside Work Hours |
| 19:00PM | 01:00AM | ⚪ Outside Work Hours |
| 20:00PM | 02:00AM | ⚪ Outside Work Hours |
| 21:00PM | 03:00AM | ⚪ Outside Work Hours |
| 22:00PM | 04:00AM | ⚪ Outside Work Hours |
| 23:00PM | 05:00AM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between Istanbul and Seoul?
Seoul is 6 hours ahead of Istanbul.
What is the best time to schedule a cross-border meeting between Istanbul and Seoul?
There are 2 overlapping standard business hours (09:00 - 17:00) between Istanbul 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 Istanbul and Seoul?
Yes. If either Turkey or South Korea observes seasonal Daylight Saving Time transitions, the offset difference shifts by one hour on scheduled transition dates.