4 weeks, and I wished I'd taken one more week both for recovery and dilation scheduling. That meant I had about a week of having to do 4 dilations per day (with 2 dilators, 20 minutes total) while back at work, and I ended up driving home during lunch to do one dilation session for those days. Luckily I did not have a job with OT, or that would have been a problem.
(Brassard's dilation schedule : At home, you should dilate 4 times per day with, #1, #2 for 5, 15 minutes for one month. Dilate 3 times per day with #1, #2, #3 for 5, 10, 15 minutes for two months. Dilate twice a day with #2, #3, #4, for 5, 10, 15 minutes for 3 months. Dilate once a day with #3, #4, for 5, 15 minutes for 6 months. Slowly increase the interval of time between each dilation until you reach one dilation per week with #4, for 15 minutes for the rest of your life.)