You can access the calendar from the navigation menu and check the current week from the widget at the bottom of the main page.
Obviusly on the calendar you will see upcoming events: raids, b-day etc.
Setting an event is quite easy just click on the chosen day.
Left on the Calendar page you can see this menu:
- Guild Availability <- here you can see the general guild availability, you can say what days and how many times per month you will be available and check others.
Depth Chart Info
- Guild Depth <- daily availability
- Your Depth <- you can set here what will be show on guild depth
as you can see the availability it isn't displayed per member/character.