A calendar is your main page. Here you can create new appointments and set up working hours.
There are several controls available when you working with the calendar.
Click on the date range (Aug 7 - Aug 11, 2020) on the screenshot below to select a date. So you can easily navigate between any date. For example, when you need to schedule an appointment for the next month, no need to click on the next Buttons
Today button will navigate you back to the current date
By Rooms/By Users allow you to choose the calendar mode - if you want to display appointments grouped by Rooms (Chairs) or Users