The Time Log is an embedded log where youu can keep track of your development hours. It should be embedded at the top of your Work Log. This feeds into the total time which we are tracking for the development of a new civilization. You can see the overall graph at MJ Log.
First, you need to embed the time log in your work log. You can embed it like this:
Once your log is activated on the back end, it will begin to look like the graph below. To use your log, here are the 3 steps: