Tokyo is 6 hours ahead of Istanbul. Istanbul uses Turkey Time (TRT, UTC+3) while Tokyo uses Japan Standard Time (JST, UTC+9). When it's 12:00 PM in Istanbul, it's 6:00 PM in Tokyo.
Neither city observes daylight saving time, so the 6-hour difference remains constant year-round.
Best calling time: 3:00 AM - 11:00 AM Istanbul time. This corresponds to 9:00 AM - 5:00 PM in Tokyo, covering Japanese business hours. Morning calls from Istanbul catch afternoon hours in Tokyo.
Istanbul and Tokyo are connected by direct flights taking about 12 hours. Both are major economic centers bridging continents, with growing trade and tourism ties between Turkey and Japan.