Add Mumbwa (Zambia) to your list and use my-locations table to visually convert it's time to another timezone or city time.
Mouse over the colored hour-tiles and glance at the hours selected by the column.

Current time zone for Mumbwa (Zambia) is CAT, whose offset is GMT+2 from Greenwich Mean Time (GMT).

The IANA timezone identifier for Mumbwa, Zambia is "Africa/Lusaka"

It currently does not observe Daylight Savings Time.