Best overlap: 9:00 AM to 6:00 PM in Cape Town is 8:00 AM to 5:00 PM in Prague.
9:00 AM to 6:00 PM in Cape Town is when Prague is also working, at 8:00 AM to 5:00 PM their time. With 9 hours in common, treat scheduling almost as if the two cities were in the same region. Watch the DST gap — when Prague changes its clocks and Cape Town stays the same, this window slides by an hour.
24/7 support sounds great until a P1 ticket falls into the gap between Manila signing off and Dublin signing on. Here is how to design a follow-the-sun support model that actually catches tickets at the boundary. -