You UK residents don't know how good you have it. My partner was in and out (they didn't even tell him to wait 15 mins after, for some reason) in 10 minutes. St Thomas' Hospital. AZ.

Here in Switzerland I turned up 10 mins before my appointment time expecting Swiss efficiency. Instead, one queued to get into the registration area, queued to register, queued to be allocated a vaccination booth. It took just over an hour, including the 15 minutes "sit here" bit at the end. Pfizer.