Time tracking is a valuable exercise, but the mechanics can be cumbersome. Learning a simple automation makes the process easy. For more and to see a video demonstration visit the blog post: https://frankbuck.org/evernote-time-tracking/
Update: When this post appeared, IFTTT was free. There is still a free plan, but it is limited to three applets. Since what you see here requires only one applet, you would still be able to use the free plan.