If you’re not early, you’re late.
How many minutes have you spent at the beginning of a meeting, not meeting but waiting for others to show up? How many others were also waiting, and what are you each worth per minute? Do the math. Didn’t you have better things to do?
How many minutes have you spent at the back end of a meeting that is going longer than scheduled and, even worse, going long because one person always has something lengthy to say while another takes everyone down useless tangents? ...