ZikanWari manages your university course, school lessons in Japanese traditional style.
In main view, you can see and edit courses of week.
Tap right button of navi-bar and select (or add new) course for each frame.
Once you tap course-frame, the screen switches to countdown view.
In countdown view, ZikanWari tells you to how many minutes [to start], [to end] or [from end] of the period.