You can choose which days your event types are available, what time they're available, and their duration through the easy-to-use Event Type Setup
First, navigate to 'My event-types' and either edit an existing event type or create a new event type.
Halfway down the page, you'll notice a 'Pick Duration', 'Select Days', and an 'Open' and 'Closed' group of settings. From here you can choose the duration of your appointments ranging from 15 minutes to 60 minutes, in increments of 15 minutes.
You can then select which days these appointments are available, and what time they are available during those days. Remember, you can add multiple time blocks for appointments. For example, you can be open 10:00-12:30 to accept appointments, and closed for appointments 12:30-13:30 for lunch, and open again at 13:30-17:30. You can also add and remove times 'My Availability' page, so that after this event-type is live, you may want to quickly adjust days off, days when you are open longer, etc.