Istanbul and Jacksonville Time Zone Comparison
Istanbul and Jacksonville are two major cities that sit in noticeably different time zones. Jacksonville is in North America, while Istanbul sits in the Middle East; their daylight saving rules also differ.
Because Istanbul and/or Jacksonville observe daylight saving time for part of the year, the gap between them isn't fixed — it ranges between 7 and 8 hours depending on the season.
With a gap this large, business hours barely overlap between Istanbul and Jacksonville — an early morning or a late evening on one side is usually needed to connect with the other.