Perth is 6 hours ahead of Cape Town. Cape Town uses South Africa Standard Time (SAST, UTC+2) while Perth uses Australian Western Standard Time (AWST, UTC+8). Neither city observes daylight saving time.
When it's 12:00 PM in Cape Town, it's 6:00 PM in Perth. The 6-hour difference remains constant throughout the year.
Morning Cape Town, afternoon Perth! 9:00 AM in Cape Town is 3:00 PM in Perth - decent overlap for business calls.
Cape Town and Perth are connected across the Indian Ocean. South African Airlines and Qantas operate flights on this route connecting Southern Africa with Western Australia.