As another commenter said, we don't get enough leap seconds for it to have a noticeable effect in real life. The solar sync (in this time scale) is really only

As another commenter said, we don't get enough leap seconds for it to have a noticeable effect in real life. The solar sync (in this time scale) is really only relevant for space science and they probably need a better time than "adjusting in discrete 1-second-steps" anyways and are much more limited in scope.