Using Google Calendar to set-up appointments

Do you need to setup appointments for advising or for meeting with your students? The Google Calendar can help your advisees/students help themselves. You setup your appointment slots. You share a link with them. They schedule their own appointment. They can also cancel and rebook. This frees you up from the busy work. People who you share the link with only see the open appointment slots. They do not see any other part of your calendar. 

How to Create an Appointment Calendar in Google Calendar