The Hindus had developed a system of calendrics that encapsulates vast periods of time. The following list presents the current 60-year cycle of the Calendar: After the completion of sixty years, the calendar starts again with the first year. The Tamil Yearly calendar follows a sixty year cycle. * Thai 1 : Pongal Festival and Chiththirai 1:Tamil New Year's Day The following table shows when the first day of each month occurs: Similarly, Aani had 31 days in 1996 and 32 days in 1998. For example, the month of Vaikasi had 32 days in 1996 and 31 days in 1998. Moreover, Tamil months may even have 32 days. Unlike the Gregorian calendar, the number of days in a given month can vary between years. Name of Tamil Twelve Months: The Tamil new year usually falls in mid-April and the calendar consists of twelve months. The number of days in a month can vary between 29 to 31. The Tamizh Calendar starts around April 14 of the Gregorian Calendar each year. The following list compiles the days of the week in the Tamil Calendar: Sun, Moon, Mars, Mercury, Jupiter, Venus, and Saturn, in that order. The days of the Tamil Calendar relate to the celestial bodies in the solar system. The Tamizh lunar calendar is conversely used by Tamizh people around the world. The Tamizh calendar is based on the solar calendar used by the people of Tamil Nadu and Sri Lanka and Thailand where the traditional new year falls on January 14 as well. The Tamil New Year follows the vernal equinox and generally falls on April 14 of the Gregorian year. It has a sixty-year cycle and each year has twelve months. The Tamil calendar is based on the solar cycle. There are several festivals in Tamil Nadu based on the Tamil cultural Calendar. The Tamizh Calendar is followed by the Tamil speaking state of Tamil Nadu, Kerala in India and by the Tamizh population in Sri Lanka. 5 The Sixty-Year Cycle of Tamil Calendar.