Assuming two people have done it before, maximum 10 minutes. Even if doing it for the first time, instructions that are sewn into the tote bag are clear and easy to follow.
The 1st time it might take about 20 minutes, but once you get used to it, anyone can do it in about 10 minutes, and it is definitely easier with 2 people, but not necessary.
For more information please check out our guide setting up a great backyard setup
Or take a look at our recommended projectors and screens