Why would anarchists want to celebrate christmas, or athiests, or people of some other faiths? As to the new year thanks and good wishes to you, but when exactly does it begin or has it happened already?

 http://en.wikipedia.org/wiki/New_year

The most common modern dates of celebration are:

* 1 January : The first day of the year in the Gregorian calendar used by most countries.

* Rosh Hashanah (Hebrew for 'head of the year') is a celebration that occurs 163 days following Pesach (Passover). In the Gregorian calendar at present, Rosh Hashanah cannot occur before 5 September, when it occurred in 1899 and will occur again in 2013. After the year 2089, the differences between the Hebrew Calendar and the Gregorian Calendar will force Rosh Hashanah to be not earlier than 6 September. Rosh Hashanah cannot occur later than 5 October, when it occurred in 1967 and will again occur in 2043. See Hebrew Calendar.

* In the Eastern Orthodox Church, the civil New Year (also celebrating the infant Jesus' circumcision) falls on 14 January (1 January in the Julian Calendar). Many in the countries where Eastern Orthodoxy predominates celebrate both the Gregorian and Julian New Year holidays, with the Gregorian day celebrated as a civic holiday, and the Julian date as the "Old New Year", a religious holiday. The Church's own liturgical calendar begins on September 1st thereby proceeding annually from the celebration of Jesus' birth in the winter (Christmas) through his death and resurrection in the spring (Pascha / Easter), to his Ascension in the summer, and the death of his mother (Dormition of the Theotokos / Virgin Mary) in the fall.
Note: Eight of the twelve biggest Eastern Orthodox Churches have adopted the Revised Julian calendar administratively and the civic and religious holidays match. The orthodox population of Bulgaria, Cyprus, Egypt, Greece, Poland, Romania, Syria and Turkey celebrate the New Year on January 1st. The orthodox churches of Georgia, Jerusalem, Russia and Serbia still use the Julian Calendar.

* In the Coptic Orthodox Church, the New Year, called Neyrouz, coincides with 11 September in the Gregorian calendar between 1900 and 2099, with the exception of the year before Gregorian leap years, when Neyrouz occurs on 12 September). The Coptic year 1723 began in September 2005. The Ethiopian Orthodox New Year, called Enkutatash, falls on the same date as Neyrouz; it is currently 1998 in the Ethiopian calendar.

* The Chinese New Year, also known as the Lunar New Year, occurs every year on the new moon of the first lunar month, around the beginning of spring (Lichun). The exact date can fall anytime between 21 January and 21 February (inclusive) of the Gregorian Calendar. Because the lunisolar Chinese calendar is astronomically defined, unlike the Gregorian Calendar, the drift of the seasons will change the range. Each year is symbolized by one of 12 animals and one of five elements, with the combinations of animals and elements (or stems) cycling every 60 years. It is the most important Chinese holiday of the year.

* The Sinhalese New Year falls In April (the month of Bak) when the sun moves from the Meena Rashiya (House of Pisces) to the Mesha Rashiya (House of Aries) Sri Lankans begin celebrating their National New Year "Aluth Avurudhu" in Sinhala and "Puththandu" in Tamil. However, unlike the usual practice where the new year begins at midnight, the National New Year begins at the time determined by the astrologers. Not only the beginning of the new year but the conclusion of the old year is also specified by the astrologers. And unlike the customary ending and beginning of new year, there is a period of a few hours in between the conclusion of the Old Year and the commencement of the New Year , which is called the "nona gathe" (neutral period). During this time one is expected to keep off from all types of work and engage solely in religious activities.

* The Vietnamese New Year is the Tết Nguyên Đán which is for most times the same day as the Chinese New Year.

* The Tibetan New Year is Losar and falls from January through March.

* The Iranian New Year, called Norouz, is the day containing the exact moment of the vernal equinox, commencing the start of the spring season. This falls on the 20 or 21 March.

* The Tamil New Year and Vishu are celebrated on the same day respectively in the Southern Indian states of Tamil Nadu and Kerala. They generally fall on 13 April or 14 April. The first month of the Tamil New Year is called Chithrai. Every year in the month of Chithrai, in the temple city of Madurai, the Chithrai Thiruvizha is celebrated in the Meenakshi Temple. A huge exhibition is also held, called Chithrai Porutkaatchi. In some parts of Southern Tamil Nadu, it is also called Chithrai Vishu. The day is marked with a feast in Hindu homes and the entrance to the houses are decorated elaborately with kolams.

* The Telugu New Year generally falls in the months of March or April. The people of Andhra Pradesh, India celebrate the advent of Lunar year this day.

* The Thai New Year is celebrated from 13 April to 15 April by throwing water.

* In April when the sun moves from the Meena Rashiya (House of Pisces) to the Mesha Rashiya (House of Aries) Sri Lankans begin celebrating their national New Year, Aluth Avurudhu in Sinhala and Puththandu in Tamil. The new year generally falls on 13 April or 14 April.

* The Cambodian New Year and Lao New Year are celebrated from 13 April to 15 April.

* The Bengali New Year Pohela Baisakh is celebrated on 14 April or 15 April in a festive manner in both Bangladesh and West Bengal.

* Some neo-pagans celebrate Samhain (a festival of the ancient Celts, held around November 1) as a new year's day representing the new cycle of the Wheel of the Year, although they do not use a different calendar that starts on this day.

* The Gujarati New Year is usually celebrated the day after the festival of Diwali (which occurs in mid-fall - either October or November, depending on the Lunar calendar). The Gujarati New Year is synonymous with sud ekam of the Kartik month - the first day of the first month of Gujarati lunar calendar. Most other Hindus celebrate the New Year in early spring, but the Gujarati farming community celebrates the New Year after Diwali to mark the beginning of a new fiscal year.

* The Marwari New Year is celebrated on the day of the festival of Diwali

* The Islamic New Year occurs on 1 Muharram. Since the Muslim calendar is based on 12 lunar months amounting to about 354 days, the Gregorian date of this is about eleven days earlier each year. 2008 will see two Muslim New Years.

* The Assyrian New Year, called Rish Nissanu, occurs on 1 April
* In the Bahá'í calendar, the new year occurs on the vernal equinox on 21 March, and is called Naw-Rúz.

* The Punjabi new year Vaisakhi is celebrated on 13 April and celebrates the harvest.

* Hola Mohalla, New Year's Day in the Sikh Nanakshahi calendar is on March 14.

* The Thelemic new year is usually celebrated with an invocation to Ra-Hoor-Khuit, commemorating the beginning of the New Aeon in 1904. It also marks the start of the twenty two day Thelemic holy season.