Arbor Day fifteenth day of the month Esfand, which usually corresponds with March 5. This day is the first day of the "Natural Recyclable Resources Week" (March 5 to 12). This is the time when the saplings of the all kinds in terms of different climates of different parts of Iran are shared among the people. They are also taught how to plant trees. The Jewish holiday Tu Bishvat, the new year for trees, is on the 15th day of the month of Shvat, which usually falls in January or February. Originally based on the date used to calculate the age of
Korean New Year the winter solstice, unless there is a intercalary eleventh or twelfth month in the lead-up to the New Year. In such a case, the New Year falls on the third new moon after the solstice. Korean New Year typically falls on the same day as Chinese New Year. While Korean New Year is generally referred to as "Seollal", it has been called by many other names. They are listed in the table below. The earliest references to Korean New Year are believed to be found in the 3rd century Chinese historical work, "Records of the Three Kingdoms, Book of Wei,