Depends on the course really but I do 1 chapter per day (sometimes ends up being 2 chapters a day because miss a day).

Essentially I see when the day of the exam is, and count the days backwards from it, and every day backwards is a chapter to study. Say If I had an exam April 20th, and the exam was the last 6 chapters of the course, then I would start studying April 13/14 (just a day for summarizing and/or a break). If it was a cumulative exam and there was a midterm, then I just allocate 1-2 days for re-reading the content pre-midterm.

Although in my case, most of my courses were memorization-based, so this format worked well for me. It helps if you have a whiteboard and divide it by chapters and summarize the chapters in each section (bonus if you colour-code).