Updating current time…
South KoreaKST
UTC+9
12am
3am
6am
9am
12pm
3pm
6pm
9pm
TurkeyTRT
UTC+3
6h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

9:00 pm21:00 KST (UTC+9), Nov 5, 2026 = 3:00 pm15:00 TRT (UTC+3), Nov 5, 2026

Jeju City is 6 hours ahead of Istanbul.

How the time difference changes

Jeju City is 6 hours ahead of Istanbul year-round.

Working hours of 9:00 am to 6:00 pm in Jeju City correspond to 3:00 am to 12:00 pm in Istanbul.Working hours of 09:00 to 18:00 in Jeju City correspond to 03:00 to 12:00 in Istanbul.

Compare Jeju City time with Istanbul time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

KST (Korea Standard Time) is 6 hours ahead of TRT (Turkey Time).
9:00 pm21:00 in Jeju City, South Korea is 3:00 pm15:00 in Istanbul, Turkey

Jeju City to Istanbul call time
Best time for a conference call or a meeting is between 3pm-6pm15:00-18:00 in Jeju City which corresponds to 9am-12pm09:00-12:00 in Istanbul

9:00 pm21:00 KST (Korea Standard Time) (Jeju City, South Korea). Offset UTC +9:00 hours
3:00 pm15:00 TRT (Turkey Time) (Istanbul, Turkey). Offset UTC +3:00 hours

9:00 pm21:00 Jeju City, South Korea / 3:00 pm15:00 Istanbul, Turkey

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Hourly time comparison
Jeju City, South KoreaIstanbul, Turkey
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Jeju City Time Zone and Facts

Time Zone

Abbreviation / Offset
KST – Korea Standard Time, UTC+9 (no daylight saving time)

Jeju City Facts

Country
South Korea
Alternative Names
CJU, Chedzhu, Cheju, Chu-sung, Chyei Chyu, Czedzu, Czedżu, Jeju, Jeju City, Kota Jeju, Saishu, Saishū, Saisyu, Saisyu Yu, Saisyū, Saisyū Yū, Tsche-dschu, Tse-tsiu, Tsitcheou, Tzetzou, chjw, jeju, jejusi, ji zhou, ji zhou shi, jyjw, Τζέτζου, Чеджу, جيجو, چجو, 済州市, 濟州, 濟州市, 제주, 제주시
Population
488,844
Currency
Won (KRW)
Geographic Coordinates
33° 30' N Latitude / 126° 31' E Longitude
International Dialing Code
+82

Istanbul Time Zone and Facts

Time Zone

Abbreviation / Offset
TRT – Turkey Time, UTC+3 (no daylight saving time)

Istanbul Facts

Country
Turkey
Alternative Names
Bizanc, Bizánc, Byzance, Byzantion, Byzantium, Byzanz, Constantinoble, Constantinopla, Constantinople, Constantinopolen, Constantinopoli, Constantinopolis, Costantinopoli, Estambul, IST, Istamboul, Istambul, Istambuł, Istampoul, Istanbul, Istanbúl, Isztambul, Konstantinapoly, Konstantinopel, Konstantinopolo, Konstantinoupoli, Konstantinoupolis, Konstantinápoly, Kustantiniyah, Micklagard, Micklagård, Mikligardur, Mikligarður, Stamboul, Stambul, Stambula, Stambuł, Tsarigrad, Vizantija (Vizantija), Vyzantio, astnbwl, bijantium, byuzantion, byzntywn, iseutanbul, istambula, isutanburu, stin Poli [stimˈboli], yi si tan bu er, İstanbul, Βυζάντιο, Βυζαντιο, Ισταμπουλ, Ισταμπούλ, Κωνσταντινουπολη, Κωνσταντινούπολη, Κωνσταντινούπολις, στην Πόλι [stimˈboli], Византија (Vizantija), Истанбул, Стамбул, ביזנטיון, اسطنبول, इस्तांबुल, ইস্তাম্বুল, イスタンブール, ビュザンティオン, 伊斯坦布尔, 비잔티움, 이스탄불
Population
15,701,602
Currency
Lira (TRY)
Geographic Coordinates
41° 00' N Latitude / 28° 56' E Longitude
International Dialing Code
+90
Current Time in Turkey