Now, in addition to regular events, you can reserve a certain amount of time on your calendar of appointments. To do this, click anywhere on the calendar of events and changing appointment slots at the top of the bubble of a new event.
The trick with the appointment slots is that they get their own URL, which can be embedded in a website or sent directly to someone. The URL is available on the settings page that opens when you click the appointment slot on your calendar. A visitor to the URL can make an appointment with you and with a new event to share, both yours and that person's calendar will be created.
The option will be extended and should be available worldwide in the coming days.