The Tamil calendar is a lunisolar calendar used by Tamil people, primarily in the Indian state of Tamil Nadu, Sri Lanka, Malaysia, Singapore, and Mauritius. The calendar is based on the movement of the Sun and the Moon, and each month begins on the day of the new moon. The Tamil calendar has 12 months, each of which is 29 or 30 days long. The months are named after the zodiac signs, and the year is divided into six seasons. The traditional Tamil calendar is still used by many Tamil people for religious and cultural purposes.
The Tamil calendar is important for a number of reasons. First, it is used to determine the dates of religious festivals and holidays. Second, it is used to predict the weather and agricultural conditions. Third, it is used to calculate the age of a person. The Tamil calendar is also a source of cultural pride for Tamil people.