I did a practice run for my kitsuke test next week and clocked in at 10 minutes and 40 seconds to put on my kimono and tie the obi into this.
I am allowed to do all the prep work first, before the timer is started, such as setting up the obi and laying out all the necessary strings and whatnot in the order they will be used.
My sensei said 10 minutes and 40 seconds is good for a first try. I just need to shave off that 40 seconds for the test, some how. AND, when I go on to the next level, I have to be able to do this in five minutes. Yeah, right!