The time it takes to get CCTV cameras up and running varies greatly depending on factors such as the model of the camera, type of the camera, complexity of your environment, number of technicians, level of skill of the technicians etc.
There is no universal answer to this question. But on average, three experienced technicians can mount 5 wired cameras, run the cables, mount TV, mount the cabinet, get the whole system up and running within a day.
More technicians will speed up the work, wired cameras are slower to install because of the time spent in organizing and running the cable decently and securely, experienced technicians do work faster than their counterparts, some old models are easier to install than new models, simple environment enhance quick installation.