Hi there, while I do not usually like commercial, cloud-based services, sometimes I am forced to use them. At my workplace we use Toggl to track time. Needless to say, I prefer to use Org-mode. Therefore I wrote a very simple interface which enables me to use Org-mode and synchronize the clocking data with Toggl. I share it here in case anyone might need something like that: https://github.com/mbork/org-toggl . It has a few limitations (mentioned in the README). I will most probably not put any effort to overcome them (they don't bother me, really), but I'll be happy to accept PRs if someone wants to do something about them.
Best, -- Marcin Borkowski