How fast is window replacement?

Question

Just the general amount of time would be nice, thank you :)

Answer 1

I had all my windows replaced by a window company and they had 17 windows done in a few hours.  They had 4 men working on them.

Answer 2

I changed all the windows in my house...about an hour each, with the new molding and all

Answer 3

if you hire someone, 1 to two days. If you do it yourself probably 3 or 4, possibly longer.