Little New Year in Japan
Little New Year in Japan is held on February 20. 小正月 koshōgatsu. This event in the second decade of the month February is annual. 
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In Japanese culture, the new year must begin on a clean slate. Little New Year - traditionally celebrating the first full moon of the new year, on the 15th day of the first lunar month (approximately mid-February).
The main events of Koshōgatsu are rites and practices praying for a bountiful harvest; rice gruel with adzuki beans (小豆粥, azukigayu) is traditionally eaten in the morning and is involved in the rice gruel divination ceremony. Further, New Year decorations are taken down around this date, and some temples hold events, such as at Tōrin-in.
Similar holidays and events, festivals and interesting facts
Korean New Year on February 6 (is based on the Chinese lunisolar calendar. Date of 2027);
Tsagaan Sar or Mongolian Lunar New Year on February 6 (Celebrated on the first day of the lunar-solar calendar);
Losar, Tibetan New Year on February 6
Aztec New Year on March 12
Nanakshahi New Year, first day of the month of Chet on March 14
Ides of March on March 15
Iranian New Year on March 21
Indonesian New Year on March 21