When this menu item is selected, the Timer information dialog shown in Figure 1 will be displayed.
The Session timer shows how much time has been spent exercising in the current session (ie. from when you started JWM).
The timer marked This week shows the accumulated time spent doing exercises between the time of the last weekly timer reset day and the current time. It thus allows you to check the number of hours per week you have spent so far doing exercises, and so arrange your time to fulfil your study goals. For example, if you set a goal to study vocabulary and Kanji for five hours per week, then the weekly timer will provide you with information about how you are going in achieving this goal through the course of the week.
The timer marked Last weeks shows how many hours your exercised in the previous week.