Mid-Autumn Festival of the Hindu lunar month of Ashvin (September–October), marking the end of the monsoon season. In Sri Lanka, a full moon day is known as "Poya" and each full moon day is a public holiday. Shops and businesses are closed on these days as people prepare for the full moon. Exteriors of buildings are adorned with lanterns and people often make food and go to the temple to listen to sermons. The "Binara Full Moon Poya Day" and "Vap Full Moon Poya Day" occur around the time of the Mid-Autumn Festival and like other Buddhist Asian countries, the festivals celebrate
Tishri-years the years from the Autumn season, around the Autumn Equinox (Gregorian September 22/23). The New Years Day of the Tishri-years is called "Rosh Hashanah" ("Head of the Year"); it begins the Fall Feasts of Israel. Tishri 1, however, is not determined directly by its relationship to the Autumn Equinox. It depends on the determination of Nisan 1, which is the day after the New Moon closest to the Spring Equinox (within fifteen days before or after). Tishri 1 is the first day of the seventh month. Although the month number is always counted from Nisan, in the Tishri-years, the year