In my case, that time is in the mid-afternoon because I have learned that this is the time when I tend to be able to concentrate the best (College@Home, 2011). Another aspect of time management I have learned is that it is extremely important to control my environment to prevent distractions from wasting my time. That means that if it is difficult to concentrate on my work in my dorm room because other people are socializing, I have the responsibility to change my environment to one that is more conducive to studying (College@Home, 2011). I have combined those two elements in the following way: regardless of what else is going on, I go to the library at 4:00 PM on Monday, Wednesdays, and Fridays and I plan out in advance exactly what my goals are for that time period on each a particular day. I have also learned that catching up after allowing myself to fall behind is much harder than avoiding falling behind in the first place (College@Home, 2011). Similarly,...

Even if it is "possible" to cram for an exam or complete a long research paper in a single day, there are always going to be unexpected delays and problems (such as falling ill) and unless I leave myself a time cushion, those types of delays can make it impossible to prepare for an exam or to complete assignments on time (Lucier, 2008).
References

. (2011). 57 Time-Management Hacks for College Students. Retrieved http://www.collegeathome.com/blog/2008/05/21/57-time-management-hacks-for-college-students/

Lucier, K.L. (2008). "8 Steps for Strong Time Management for College Students

Learning How to Manage Your Time in College Can Be Critical for Your Success." About.com. Retrieved from:

http://collegelife.about.com/od/academiclife/a/timemanagement.htm