The Mid-Autumn Festival is named Tsukimi (月見) or Otsukimi (literally means moon-viewing) in Japan. Celebrations of the festival take place on the 15th day of the eight month of the traditional Japanese Lunisor calendar (usually takes place in September of the solar calendar)
The Tsukimi custom or moon-viewing custom originated from the Chinese Mid-Autumn Festival. Custom of viewing the moon and holding festival parties appeared over 1000 years ago when tradition of the Chinese Mid-Autumn Festival was introduced to Japan.
Unlike the Chinese, who eat mooncakes to celebrate the festival, the Japanese usually eat eating rice dumplings called Tsukimi dango. The tradition is now so popular in Japan that some people repeat the activities for several evenings following the appearance of the full moon during the eighth lunisolar month.