The Tamil calendar, also known as the Tamil Panchangam, is a traditional calendar system used in the Indian state of Tamil Nadu and by Tamil-speaking communities around the world. The Tamil calendar is based on the solar and lunar calendars and consists of 12 months.
Here are the names of the Tamil months along with their corresponding Gregorian months:
| Tamil Months | In English | English month duration |
|---|---|---|
| சித்திரை | Chithirai | April to May |
| வைகாசி | Vaikasi | May to June |
| ஆனி | Aani | June to July |
| ஆடி | Aadi | July to August |
| ஆவணி | Aavani | August to September |
| புரட்டாசி | Purattasi | September to October |
| ஐப்பசி | Aippasi | October to November |
| கார்த்திகை | Karthigai | November to December |
| மார்கழி | Margazhi | December to January |
| தை | Tai | January to February |
| மாசி | Maasi | February to March |
| பங்குனி | Panguni | March to April |
Tamil months play a significant role in determining the timing of religious and cultural events, agricultural activities, and festivals in the Tamil-speaking communities. The transition of the Sun from one zodiac sign to another is also marked by the beginning of each Tamil month.