Now of course these are all important elements in the life of the professional scholar, but what Bart has not so far mentioned is that the vast majority of one's time is spent ploughing through the endless, endless stream of emails that pour in on a daily basis. For some scholars, the situation is so bad that they simply choose to ignore all email correspondence until the emailers in question become as persistent as the importunate widow.
One scholar confided in me that they only way that he was able to get any research done was to ignore everything until people started shouting at him. I suspect that many other academics are the same. As the editor of a book series, I will confide here that many academics routinely ignore emails requesting assistance. Ask any publisher and you will hear the same story.
When my kids were little, I remember someone asking one of them what their dad did for a living and she said "He does something on the computer". It wasn't "teaching" or "reading books" or "talking to students". She'd seen me endlessly attempting to dig down through that email mountain.