Tamil calendar

The Tamil calendar is a sidereal calendar used in Tamil Nadu, India.^[1][2] It is also used in Puducherry, and by the Tamil population in Malaysia, Singapore, Mauritius and Sri Lanka. Tamil Nadu farmers greatly refer to this. It is used today for cultural, religious and agricultural events,^[3] with the Gregorian calendar largely used for official purposes both within and outside India. The Tamil calendar is based on the classical lunisolar calendar also used in Assam, West Bengal, Kerala, Manipur, Nepal, Odisha, Rajasthan and Punjab.

There are several festivals based on the Tamil Hindu calendar. The Tamil New Year follows the nirayanam vernal equinox^[4] and generally falls on 14 April of the Gregorian year. 14 April marks the first day of the traditional Tamil calendar and this remains a public holiday in both Tamil Nadu and Sri Lanka. Tropical vernal equinox fall around 22 March, and adding 23 degrees of trepidation or oscillation to it, we get the Hindu sidereal or Nirayana Mesha Sankranti (Sun's transition into nirayana Aries). Hence, the Tamil calendar begins on the same date in April which is observed by most traditional calendars of the rest of India - Assam, Bengal, Kerala, Odisha, Manipur, Punjab etc.^[5] This also coincides with the traditional new year in Burma, Cambodia, Laos, Sri Lanka, Bangladesh Nepal and Thailand. The 60-year cycle is also very ancient and is observed by most traditional calendars of India and China, and is related to 5 revolutions of Jupiter according to popular belief, or to 60-year orbit of Nakshatras (stars) as mentioned in Surya Siddhanta.

The traditional Tamil year starts on 14 April 2017, Kaliyuga 5119. Vikrama and Shalivahana Saka eras are also used. There are several references in early Tamil literature to the April new year. Nakkirar, the author of the Nedunalvaadai writes in the 3rd century that the Sun travels from Mesha/Chitterai through 11 successive Raasis or signs of the zodiac.^[6] Kūdalūr Kizhaar in the 3rd century refers to Mesha Raasi/Chitterai as the commencement of the year in the Puranaanooru.^[7][8] The Tolkaapiyam is the oldest surviving Tamil grammar that divides the year into six seasons where Chitterai marks the start of the Ilavenil season or summer. The 8th century Silappadikaaram mentions the 12 Raasis or zodiac signs starting with Mesha/Chitterai.^[9] The Manimekalai alludes to the Hindu solar calendar as we know it today. Adiyaarkunalaar, an early medieval commentator or Urai-asiriyar, mentions the 12 months of the Tamil Hindu calendar with particular reference to Chitterai. There were subsequent inscriptional references in Pagan, Burma dated to the 11th century CE and in Sukhothai, Thailand dated to the 14th century CE to South Indian, often Vaishnavite, courtiers who were tasked with defining the traditional calendar that began in mid-April.^[10]

Week

The days of the Tamil calendar relate to the celestial bodies in the solar system: Sun, Moon, Mars, Mercury, Jupiter, Venus, and Saturn, in that order. The week starts with Sunday.

This list compiles the days of the week in the Tamil calendar:

For Tamils, each day begins at the sunrise.

Months

The number of days in a month varies between 29 and 32.

The following list compiles the months of the Tamil Calendar.

Note: The Tamil calendar is a solar calendar while the Sanskrit calendar is a lunisolar calendar.^[11]

Seasons

The Tamil year, in keeping with the old Indic calendar, is divided into six seasons, each of which lasts two months:

Tamil Calendar

The Tamil calendar(Thiruvalluvar calendar), which is +31 years of the Georgian calendar.

Celebrations

The months of the Tamil calendar have great significance and are deeply rooted in the faith of the Tamil Hindus. Some months are considered very auspicious while a few are considered inauspicious as well. Tamil months start and end based on the Sun's shift from one Rasi to the other but the names of the months are based on the star on the start of Pournami (full moon) in that month. The name of the month is some times the name of the star itself. (e.g. Chithrai is always the star on the Pournami of the Chithirai month).

Some of the celebrations for each month are listed below. Dates in parentheses are not exact and usually vary by a day or two. Underneath (or beside) the months of the Hindu calendar are their Gregorian counterparts.^[12][13]

Significance

• The Hindus developed a system of calendrics that encapsulates vast periods of time.^[14] For computing the age of the earth and various geological and other epochs, as well as the age of mankind, they still employ a Tamil calendar derived from ancient astronomical data, known as the Tirukkanida Panchanga^[15]
• The 10th Tamil month, called Thai, falls in mid-January each year. It is celebrated with much enthusiasm within the Tamil Community all over the world. Thai is marked by gifts of new clothing for family members and prayers to God for prosperity in the coming year. Thai and the fifth month Aavani are considered very auspicious for marriage and most marriages occur during these months.
• The fourth month Aadi is considered inauspicious, so weddings do not often fall in this month. Aadi is also the month of preparation for the next crop cycle by farmers. Therefore, farming communities avoid major events like weddings in this month. Those members of the Tamil community who don't actively contribute/participate in farming take advantage by having important functions like wedding in this month. For example, the business community prefers this month for weddings. Aadi was traditionally the worst month for business, but this changed significantly when businesses introduced Aadi discounts. Each Friday of this month is set aside for prayer and worship.
• Aadi is an inauspicious month for newlyweds to sleep together because a woman who conceives in this month will have a difficult delivery in May, the hottest month in Tamil Nadu (Agni natchathiram - ['pinezhu'] the last 7 days of Chithirai and ['munezhu'] the first 7 days of Vaigasi). 'Aadi' is also the windiest month in Tamil Nadu, and hence the phrase 'Aadi kaatru ammiyai nagatrum' (literally, 'the strong winds in the month of Aadi can even move a stone grinder')
• Purattaasi is when most of the non-vegetarian Tamil people fast from meat for a month. Each Saturday of this month is set apart to venerate the planet Saturn.
• Deepavali, is celebrated on the new moon day, in the seventh month Aipasi. The month of Aipasi is usually characterised by the North-East Monsoon in Tamil Nadu, which has given birth to a phrase, Aipasi adai mazhai meaning the "Non-stop downpour".
• Maargazhi falls in winter in Tamil Nadu, and is considered inauspicious for unmarried women to find a groom. The Shaivite fast of Thiru-vembaavai and the Vaishnava fast of Thiru-paavai are also observed in this month.
• The total number of days in a Tamil Calendar is an average 365 days and the days of the week are named similarly to those of the western calendar. The Vakiya Panchangam is employed for both sacred and civil calculations. The Trikanitha Panchangam is employed for astrological calculations.

Festivals

The Tamil Calendar is important in the life of Tamil-speaking people and most Festivals of Tamil Nadu are based on it. Some Festivals include Tamil New Year, Chitra Pournami, Vaikasi Visakam, Aani Tirumanjanam, Aani Moolam, Aadi Pirappu, Tiruvadipuram, Aadi Perukku, Aadi Velli, Aadi Ammavasai (Amavasya), Aadi Kruthikai, Varalakshmi Nonbu (Varalakshmi Vratam), Avani Avittam, Vinayaka Chaturthi, Krishna Jayanthi, Thiruvonam, Purattasi Sani, Mahalaya Paksham (Pitru Paksha), Navaratri, Niraipani, Deepavali, Skanda Sasthi Vratham (Sooranporu), Karthikai Somavaram, Tirukarthikai (Karthikai Deepam) or (Kartik Purnima), Pillaiyaar Nonbu, Margazhi Pirappu, Paavai Nonbu (Thiruppavai), Vaikunta Ekadasi, Thiruvathirai, Koodaravalli, (Bhogi) Pandikai, Thai Pongal, Maatu Pongal, Kaanum Pongal, Thaipoosam, Thai Ammavasai (Amavasya), Maha Sivaratri, Masi Magam, Karadaiyan Nonbu and Panguni Uthiram.

See also

• Chandravakyas
• Pambu Panchangam
• Puthandu
• Samvatsara
• Sexagenary cycle
• Kollam era

References

External links

• Full Tamil Calendar with Panchangam Information
• Tamil Calendar with Panchangam Information
• @ Tamil Calendar for all past and future years (தமிழ் நாள்காட்டி)
• Tamil Calendar with Daily Panchangam