Istanbul is 6 hours behind Seoul. Neither observes daylight saving time, so the difference stays the same all year.

IstanbulSeoul

Sunrise 5:51 AMSunset 8:31 PM(local)

Sunrise 5:29 AMSunset 7:50 PM(local)

IstanbulUTC+3
SeoulUTC+9

🇹🇷 Istanbul

Dialing code+90
Population15,701,602
Coordinates41.01°N, 28.95°E
Elevation39 m

🇰🇷 Seoul

Dialing code+82
Population10,349,312
Coordinates37.57°N, 126.98°E
Elevation38 m

Best time for a call: 09:00–12:00 in IstanbulAdd to calendar

Working hours assumed 9:00–18:00.

Frequently asked questions

What is the time difference between Istanbul and Seoul?
Istanbul is 6 hours behind Seoul. Use the side-by-side clocks and the day/night strips above to convert any hour between them.
When is the best time to call between Istanbul and Seoul?
The best window to call is 09:00–12:00 Istanbul time, when working hours overlap in both cities. Pick an hour on the strips to add it to your calendar.
Why does the time difference between Istanbul and Seoul change?
It doesn't — neither Istanbul nor Seoul observes daylight saving time, so the difference between them stays the same all year.