graveyard shift

A man took the bus home from the graveyard shift, bone-tired but dreaming big dreams for his son.

After several rounds of unemployment he secured—with gratitude—a graveyard shift as a private guard at a nuclear-waste site.

Not once had she hesitated or turned from the beaten trail, but she had gone down after the graveyard shift.

Another time as the graveyard shift came to the surface the men noticed a peculiar wavering light in the sky.