edges

Montana sunrise--by the clock--dawns late;
at edges, Man's conventions droop and bend.
In Idaho, it's seven; here it's "eight"
at Mountain Time Zone's designated end.
Jules Verne found drama in the plot device
as picaresque adventures each unfurled.
Whole days get skipped, or must be lived out twice
In circumnavigating a round world.
The arbitrary twelfth part of mean Night
dissects a seamless globe by twenty-four.
A smooth Continuum, like width, or height,
Got parceled out, to every prayer, or chore.
Constructed boundaries tear worlds apart, 

but brute convention dictates where zones start.