Johannesburg is 1 hour ahead of Copenhagen
Best overlap: 8:00 AM to 5:00 PM in Copenhagen is 9:00 AM to 6:00 PM in Johannesburg.
Copenhagen and Johannesburg overlap from 8:00 AM to 5:00 PM (Copenhagen) to the equivalent 9:00 AM to 6:00 PM in Johannesburg — that's your meeting window. You won't be short on options — 9 hours of overlap leaves space for recurring syncs and ad-hoc calls alike. The difference isn't constant year-round: Copenhagen adjusts for daylight saving while Johannesburg holds steady.