What is Time? Time is a mysterious and fascinating concept humans in the history of mankind. Is time real, is time an illusion and if it is real how do you measure it? If it is an illusion how do you define it? In the Network of Time the author tries to understand the concept of time through Philosophy, History and Physics. Using plain language and little or no mathematics the author elaborates on Stephen Hawkins' A Brief history of Time. This SDG will use both books to study mankind's the concept of time through history and effects on societies.