The national flag of Japan is a white rectangular flag with a large red disc (representing the sun) in the center. It is officially called Nisshōki in Japanese, but more commonly known as the Hinomaru. Although considered the de facto flag, it was designated as Japan's national flag on August 13, 1999. In early Japanese history, the Hinomaru motif was used on flags of daimyos and samurai. During the Meiji Restoration both the sun disc and the Rising Sun Ensign were symbols in the Japanese empire. Use of the Hinomaru was restricted during the American occupation after World War II, but this was later relaxed. The flag is not frequently displayed due to its past association with nationalism. There is no requirement to fly the flag on any national holiday or special events. If used the flag may be flown from sunrise until sunset, although businesses and schools are permitted to fly the flag from opening to closing. (Full article...)