@rrolf commented here. As this was not changed in the redesign, I will treat it as new feature request to keep the discussion in the main thread as focused as possible.
It would be good to be able to type in the time for the start and stop time, to jump back or forward a few seconds, or if you wrote down the times you can quickly skip. As a nice to have, it would also be good is you are in the minute field i.e. you can press the up or down button to increase or decrease the current input field.