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
Equinox Iranian calendars as Nowruz (means new day), while the autumnal equinox (September) marks the beginning of autumn. When Julius Caesar established the Julian calendar in 45 BC, he set 25 March as the date of the spring equinox; this was already the starting day of the year in the Persian and Indian calendars. Because the Julian year is longer than the tropical year by about 11.3 minutes on average (or 1 day in 128 years), the calendar "drifted" with respect to the two equinoxes — so that in AD 300 the spring equinox occurred on about 21 March, and by