Istanbul and Cairo Time Zone Comparison
Istanbul and Cairo are two major cities that sit in noticeably different time zones. Cairo is in Africa, while Istanbul sits in the Middle East; their daylight saving rules also differ.
Because Istanbul and/or Cairo observe daylight saving time for part of the year, the gap between them isn't fixed — it ranges between 0 and 1 hours depending on the season.
With such a small gap, scheduling a call between Istanbul and Cairo is easy — a normal business-hours slot works for both sides on the same calendar day.