Obviously, these differ when it comes to their length, or rather, duration. A study time table is a one-time thing - you create this timetable to organize the way you are going to study that particular day. On the other hand, an annual study plan will cover an entire year. For example, a study timetable could include doing Math homework and studying a lesson in History, but an annual study plan could involve you learning a language for 2 hours a week during an entire year.