Istanbul and Seattle Time Zone Comparison
The distance between Istanbul and Seattle is felt not just in kilometers, but in time zones too. Geographically, Istanbul sits in the Middle East while Seattle is located in North America.
Because Istanbul and/or Seattle observe daylight saving time for part of the year, the gap between them isn't fixed — it ranges between 10 and 11 hours depending on the season.
With a gap this large, business hours barely overlap between Istanbul and Seattle — an early morning or a late evening on one side is usually needed to connect with the other.