Fair enough, so excluding annual leave the consensus so far is that you hand notice in Friday morning, end employment the end of the working day Thursday following.
Hypothetical question coming up: If you resign from your job and had to give 1 week notice and you handed your notice in at 9am on Friday morning would you then be expected to end your employment at the end of Thursday (a whole working week). Or world you be expected to work the Friday too)...