When I go into town at half past seven
Great crowds of people stream across the ways,
Hurrying, although it's only half past seven.
They are the invisible people of the days.

When you go in to town about eleven
The hurrying, morning crowds are hid from view.
Shut in the silent buildings at eleven
They toil to make life meaningless for you.

Lesbia Harford

http://www.poemhunter.com/poem/the-invisible-people/