I suggest improvements.
First, where there are too many time zones to add an arrow at the bottom to allow the scroll.
In the context menu that change / add / delete these zones could tick if you want to display or not. So if we have some too but it was not necessary at this time we can keep them in a corner for when the time comes (for the races coming soon to a season of Formula 1, for example).

Other information:
	When there are too many of the last visible flashes and hides the bar at the bottom which is not very careful. It should not hold to that it reaches the bar at the bottom.