The General's Physical

The general went to the doctor for a physical. Before he began, the doctor asked him the standard questions -- age, height, weight, and then he asked when was the last time the general had sex.

- Oh - he mused - It was 1945.

- Isn't that a long time to go without sex? - the doctor asked.

- I don't think so. According to your clock it's only 21:13.