Riyadh is 1 hour ahead of Cairo. Cairo uses Eastern European Time (EET, UTC+2) while Riyadh uses Arabia Standard Time (AST, UTC+3). When it's 9:00 AM in Cairo, it's 10:00 AM in Riyadh.
Neither city observes daylight saving time, so the 1-hour difference remains constant year-round.
Best calling time: 8:00 AM - 4:00 PM Cairo time. This corresponds to 9:00 AM - 5:00 PM in Riyadh, covering Saudi business hours.
Cairo and Riyadh are the two most populous cities in the Arab world. Direct flights connect the cities in approximately 2.5 hours. Both are major centers of commerce, culture, and politics in the Middle East.