Timestamp Excel entries

i have read the post about the timestamps in excel and have a question.
i use a sheet that monitors jobs that go in and out of a workshop .
i would like to add time stamps so that when work goes out and time is captured and the same for when it returns.
i know there is a post on the net about a single timestampo and has visual basic editing , but i dont know how this works and i cannot add another time stamp.
any help is appreciated

thanks