This feature is to add hours to waypoint times, for example, when flying, you would see:
In this case, it turns out flying from ABCD to ABCE lasts 2 3/4 minutes but flying from ABCE to ABCF is 8 hours and 37 minutes. You would not be able to see the difference!
It would be better if you saw something like this:
ABCF: 8:37:12 (to say it takes 8 hours, 37 minutes and 12 seconds to get there.)
What do you think?