Google has just rolled out a new update to its calendar service with the addition of a new ‘Appointment Slots’ feature. Which now allows you to let others know about your preferred availability, now using appointment slots in Google Calendar, any individual or business can manage appointment availability online 24/7.
The new Google Calendar Appointment slots feature lets you set time slots on your calendar that other people can book.
For example, a professor could allow his or her students to reserve time during office hours each week. A hair salon could let anyone visiting their web site schedule an appointment during set business hours.
For more information on using and creating Appointment Slots jump over to the Google Calendar blog of full instructions.
Source : Google