Istanbul and Seville Time Zone Comparison
Istanbul and Seville are two major cities that sit in noticeably different time zones. Seville is in Europe, while Istanbul sits in the Middle East; their daylight saving rules also differ.
Because Istanbul and/or Seville observe daylight saving time for part of the year, the gap between them isn't fixed — it ranges between 1 and 2 hours depending on the season.
With such a small gap, scheduling a call between Istanbul and Seville is easy — a normal business-hours slot works for both sides on the same calendar day.