Private Edwards, who had determined not to be late from his leave this time, boarded the train sharp on the dot of the hour to arrive on time to the barracks where, he was sure, the sergeant was already waiting with a big watch to expose latecomers. The station clock shows 23.00. When the train stops at the next station the station clock shows 23.05. The third station clock shows 23.10. The fourth 23.20.
With a deprecation the private jumps off the train. "Hell, I've taken the train moving in the back direction!"