A weekly event occurs every week for an extended period of time on a regular basis. You can schedule more than one weekly event for each day of the week.
For example, in an analog schedule, for Monday, you schedule an air vent in a gym to open to 40 % at 08:00 for a yoga class. For a more intense class at 10:00, you schedule the air vent to open to 100 % until 13:00. Finally, at 13:00, you schedule the air vent to close to 60 % until 20:00.
These events occur every Monday unless an exception event overrides the weekly event.