Google Calendar Availabilities is a free Chrome add-on developed by yckdevs. This handy tool allows you to easily view the available times and days in your Google Calendar. With personalized settings, you can customize the display to suit your preferences.

The add-on supports multiple shared calendars, giving you the flexibility to view the availability of different calendars at once. You can specify the days of the week you are interested in and adjust the duration, start, and end times to match your needs. This makes it convenient for scheduling meetings, appointments, or any other events without having to manually check each calendar.

Google Calendar Availabilities is currently in beta, which means it is still being actively developed and improved. While it may have some limitations or potential bugs, the add-on provides a useful way to quickly check the available times and days in your Google Calendar.