With a 8 core 16 threads processor at 3.7GHz in a NVMe SSD in raid (which I use just for that) takes around 55-65min to compile, then you can duplicate the folder after that just in case you need the build from source without Chaos and in the copy you setup Chaos and takes another 20-25min if you include the Demo. The difference is because I try to do something in parallel, like seeing a video because waiting sucks.