Istanbul and Tokyo Time Zone Comparison
Istanbul and Tokyo are two major cities that sit in noticeably different time zones. Istanbul is Turkey's largest city and historic capital, uniquely straddling Europe and Asia across the Bosphorus strait. Tokyo, the capital of Japan, anchors the world's most populous metropolitan area and is a major global center for technology and finance.
Istanbul is always 6 hours behind Tokyo, with no seasonal change, since neither city's daylight saving rules shift this relationship.
With a moderate gap like this, it's worth checking the suggested call window above before scheduling a meeting between Istanbul and Tokyo.