About Johannesburg time
Johannesburg is located in South Africa and keeps time on the Africa/Johannesburg zone. Its clock is calculated live from the authoritative IANA time zone database.
Whenever a partner city changes its clocks for daylight saving, the effective time difference with Johannesburg moves even though Johannesburg's own clock may stay put. This page recalculates every difference live, so the figures below are always current for South Africa.