Before five o'clock

Before five o'clock   
References in classic literature ?
Not more than four hours, however, for before five o'clock he set out on his way home in the faint morning twilight.
I had traversed a good deal of Brussels before five o'clock arrived, but punctually as that hour struck I was again in the Rue Royale.
Soon it will be dark before five o'clock, and Ruby Walsh will be riding a hat-trick at Cheltenham.