Istanbul is 1-2 hours ahead of Berlin. Istanbul uses Turkey Time (TRT, UTC+3) while Berlin uses Central European Time (CET/CEST, UTC+1/+2). During standard time, Istanbul is 2 hours ahead; during daylight saving time, Istanbul is 1 hour ahead.
Turkey does not observe daylight saving time, while Germany does, so the difference varies seasonally.
Best calling time: 10:00 AM - 7:00 PM Istanbul time. This corresponds to approximately 9:00 AM - 6:00 PM in Berlin during daylight saving time.
Istanbul and Berlin have strong economic and cultural ties, with a large Turkish community in Berlin. Direct flights connect the cities in about 2.5 hours. Both are major European business hubs.