I hve been re-arranging my TODO lists using Emacs's Org-Mode and when I realized that it could calculate the exact hours taken for a bunch of tasks, I felt I should explore the rest of the Org-Mode manual and see what else I had been missing out on.
Org-Mode allows you to use relative timers which, it says, are useful for recording notes during a meeting or video viewing. I did not understand exactly how to use the relative timers, but it looks like they are like timestamps. Here's a brief run-down and example on how to use them.

