Check what is marked as [Busy or Available in Google Calendar](https://scribehow.com/o/HFWmrRiyRWaE3DJyl3FIzg/viewer/How_To_Set_Up_Availability_in_Google_Calendar__swZO4IjqSESCzDuT8wsj_w?referrer=workspace)\
In this example, the NHS Clinic is blocking out time.