Clock is still not completely working. However, the absence of clock actually mean that a rather hidden but useful feature is not working properly.
If u see the clock that means your browser should be able to AUTOMATICALLY update ur balance, flight map, graphs in the main screen etc on each simulation cycle tick w/o having to refresh manually.
Since I have deployed quite a few fixes, it might allow a more stable system (at least less memory usage), which might actually helped with other logic in the game to run more smoothly
Anyway, seeing the clock is a good thing!