Javanese calendar

The Javanese calendar is the calendar of the Javanese people. It is used concurrently with two other calendars, the Gregorian calendar and the Islamic calendar. The Gregorian calendar is the official calendar of the Republic of Indonesia and civil society, while the Islamic calendar is used by Muslims and Indonesian government for religious worship and deciding relevant Islamic holidays.

The Javanese calendar is used by the main ethnicities of Java island: Javanese, Madurese and Sundanese people  – primarily as a cultural icon, a cultural identifier and as an object and tradition of antiquity to be kept alive. The Javanese calendar is used for cultural and metaphysical purposes of these Javanese peoples

The current system of Javanese calendar was inaugurated by Sultan Agung of Mataram in the Gregorian year 1633. Prior to that, Javanese had used the Hindu calendar or Saka calendar which that starts in 78 CE and uses the solar cycle for calculating time. Sultan Agung's calendar retained the Saka calendar year counting but differs by using the same lunar year measurement system as the Islamic calendar, rather than using the old solar year. Occasionally it is referred by its Latin name Anno Javanico or AJ (Javanese Year).

New Year

New Year is the time at which a new calendar year begins and the calendar's year count increments by one. Many cultures celebrate the event in some manner. The New Year of the Gregorian calendar, today mostly in use, falls on 1 January (New Year's Day), as was the case both in the old Roman calendar (at least after about 713 BCE) and in the Julian calendar that succeeded it. The order of months was January to December in the Old Roman calendar during the reign of King Numa Pompilius in about 700 BCE, according to Plutarch and Macrobius, and has been in continuous use since that time. Many countries, such as the Czech Republic, Italy, Spain, the UK, and the United States, mark 1 January as a national holiday.

During the Middle Ages in western Europe, while the Julian calendar was still in use, authorities moved New Year's Day variously, depending upon locale, to one of several other days, among them: 1 March, 25 March, Easter, 1 September, and 25 December. These New Year's Day changes generally reverted to using January 1 before or during the various local adoptions of the Gregorian calendar, beginning in 1582. The change from March 25 – Lady Day, one of the four quarter days – to January 1 took place in Scotland in 1600, before the ascension of James VI of Scotland to the throne of England in 1603 and well before the formation of the Kingdom of Great Britain in 1707. In England and Wales (and in all British dominions, including Britain's American colonies), 1751 began on March 25 and lasted 282 days, and 1752 began on January 1. For more information about the changeover from the Julian calendar to the Gregorian calendar and the effect on the dating of historical events etc., see Old Style and New Style dates.

Christmas and holiday season

The Christmas season, or festive season, (also called the holiday season or simply the holidays, mainly in the U.S. and Canada), is an annually recurring period recognized in many Western and Western-influenced countries that is generally considered to run from late November to early January, defined as incorporating at least Christmas, and usually New Year, and sometimes various other holidays and festivals. It incorporates a period of shopping which comprises a peak season for the retail sector (the "Christmas (or holiday) shopping season"), and a period of sales at the end of the season (the "January sales"). Christmas window displays and Christmas tree lighting ceremonies when trees decorated with ornaments and light bulbs are illuminated, are traditions in many areas.

Originally within the Roman Catholic Church, the term "Christmas season" was considered synonymous with Christmastide, a term associated with Yuletide, which runs from December 25 (Christmas Day) to January 6 (Epiphany), popularly known as the 12 Days of Christmas. However, as the economic impact involving the anticipatory lead-up to Christmas Day grew in America and Europe into the 19th and 20th centuries, the term "Christmas season" began to become synonymous instead with the traditional Christian Advent season, the period observed in Western Christianity from the fourth Sunday before Christmas Day until Christmas Day itself. The term "Advent calendar" survives in secular Western parlance as a term referring to a countdown to Christmas Day from the beginning of December.