It took me twenty years. Spent the first year and a half partying and flunking out. Got married, raised a couple of kids, and then went back. Probation because of the lousy grades those first three semesters and carried extra loads to get back on track. Total time spent at the two universities was about four years and six months. And paid my own way. And got a double major, math and economics. Just tooting my own horn here.
When I went back to school after flunking out it was in a summer session. At the end of the summer I received two letters from the Dean of Pure and Applied Science.
Letter number one congratulated me on being on the deans lists.
Letter number two reminded me that I was still on probation from 5 years prior due to the fact that summer school was not a factor in removing academic probation. That one gave me a good laugh. I was serious about school then.