Day Zero will be the start of active water rationing when taps will be cut off and people will have to go to collection sites.
The water crisis in South Africa's Cape Town teaches us there's more at play than just rainfall. Disasters like droughts means the issue must be seen from many different perspectives, like politics.
Early warning signs of a pending drought are difficult to recognise but cities will have to be better prepared for prolonged changes in weather patterns, so that it can respond quickly.
Windhoek can teach Cape Town on dealing with drought. Technology alone is not enough.
Building resilience in Cape Town's water sector will require addressing risks like climate change, drought and flooding. Stormwater and groundwater are tipped as potential solutions.
Droughts are much bigger and slower than other natural disasters that hit Australia - meaning that despite their huge impacts, we still haven't figured out how best to protect ourselves.
Drought is a problem in South Africa and it affects farmers. As a result, farmers and government are working together to develop strategies.