Istanbul to Kōzan Time Converter

Updating current time…
Istanbul
TurkeyTRT
UTC+3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Kōzan
JapanJST
UTC+9
6h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

3:00 pm15:00 TRT (UTC+3), Oct 29, 2026 = 9:00 pm21:00 JST (UTC+9), Oct 29, 2026

Istanbul is 6 hours behind Kōzan.

How the time difference changes

Istanbul is 6 hours behind Kōzan year-round.

Working hours of 9:00 am to 6:00 pm in Istanbul correspond to 3:00 pm to 12:00 am (next day) in Kōzan.Working hours of 09:00 to 18:00 in Istanbul correspond to 15:00 to 00:00 (next day) in Kōzan.

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

Time Difference

TRT (Turkey Time) is 6 hours behind JST (Japan Standard Time).
3:00 pm15:00 in Istanbul, Turkey is 9:00 pm21:00 in Kōzan, Japan

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

3:00 pm15:00 TRT (Turkey Time) (Istanbul, Turkey). Offset UTC +3:00 hours
9:00 pm21:00 JST (Japan Standard Time) (Kōzan, Japan). Offset UTC +9:00 hours

3:00 pm15:00 Istanbul, Turkey / 9:00 pm21:00 Kōzan, Japan

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
Istanbul, TurkeyKōzan, Japan
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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
More About Istanbul
Istanbul local time and city facts
Current Time in Turkey
Turkey time now

Kōzan Time Zone and Facts

Time Zone

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

Kōzan Facts

Country
Japan
Population
15,125
Currency
Yen (JPY)
Geographic Coordinates
34° 34' N Latitude / 133° 03' E Longitude
International Dialing Code
+81
More About Kōzan
Kōzan local time and city facts
Current Time in Japan
Japan time now