When you hover over a Cycle Marker, you should be able to see its length in both bars -and- (even more importantly) in seconds.
There’s a way to see it now, but it’s convoluted…
+1
No brainer.
Just another great suggestion that will take 8 YeArS tO IMPleMEnt !! 
+1
And the same on any part, because switching time format is a bit troublesome - many times I press “,” rather than “.” because of black keyboard, dark studio and tired eyes.
+1