He came up with Toggl, which I hadn't previously known. So I thought that I would give it a try. It is a long while since I last tracked my time this precisely (so long ago that it was before people had developed packages like this) and some benefits are obvious - as long as it doesn't become too time consuming or a distraction in itself.
So I started to do so today, and I have to say that Toggl seems easy to use and useful. One can either click start as one starts a task, and then end when on stops, for automatic time recording; or one can create an entry by typing in the start and finish time.
That generates a task list, showing each task undertaken and how long was spent on it; and also, on the dashboard, some nice summary information. Here is today:
This is the summary view: there is more detail available (who I was coaching, and all the items that were tagged Admin or other).
But the most interesting immediate effect that I noticed was that once I had clicked 'start' I did tend to stick with the task until it was done (or until my available time was used up) rather than interrupt myself with other tasks. I am sure Deming would have had something to say about that (what gets measured gets done, or something of the sort).
So I will play with Toggl for a few weeks, see what I learn, and if there is anything of interest, report back here in due course.