Give each of the Appointment slots a suitable name ( 1, above). If you are looking to conduct these appointments online, then unique Google Meet (online meeting) links are automatically generated and added to each appointment as somebody books onto a slot (in other words, you don’t need to do anything else when setting the appointments up – Google sets up web conferencing automatically). This time can then be split into smaller blocks of time, each for a fixed duration which can then be reserved by other people, perfect for booking one-to-one appointments with your students.
With Google Calendar Appointment slots, it is possible to set up a block of time to advertise when you are available. See: How do I create an Appointment schedule in Google Calendar? Google has introduced a new feature called Appointment schedules which will eventually replace Appointment slots. This article describes how to use Google’s Appointment slots.