Istanbul is 1-2 hours ahead of Paris. Paris uses Central European Time (CET/CEST, UTC+1/+2) while Istanbul uses Turkey Time (TRT, UTC+3). 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 France does, so the difference varies seasonally.
Best calling time: 7:00 AM - 4:00 PM Paris time. This corresponds to 9:00 AM - 6:00 PM in Istanbul during standard time.
Paris and Istanbul are two of Europe's most visited cities (Istanbul straddles Europe and Asia). Both are known for their rich history, culture, and cuisine. Turkish Airlines and Air France offer frequent direct flights in about 3.5 hours.