Tamil Calendar 2025 | Tamil Panchangam, Festivals & Holidays

Welcome to the complete Tamil Panchangam Calendar for 2025. This page covers all 12 months of 2025, providing daily Tithi (lunar day), Nakshatra (star), Yoga, Karana, Rahu Kalam, Nalla Neram (auspicious time), Yamagandam, Gulika Kalam, Sunrise and Sunset timings, along with all major Tamil festival dates, Amavasai (New Moon), Pournami (Full Moon), Ekadashi, Pradosham, and Sashti observances — calculated for Chennai (IST, UTC+5:30).

The Tamil Panchangam (பஞ்சாங்கம்) is the traditional almanac of the Tamil Hindu community, used for thousands of years to guide auspicious activities, determine festival dates, choose Muhurtham (auspicious time) for weddings and ceremonies, and observe fasting days. "Panchanga" literally means "five limbs" — the five daily elements: Vara (weekday), Tithi (lunar day), Nakshatra (star), Yoga (luni-solar combination), and Karana (half-Tithi). Together, these five elements determine the quality and auspiciousness of each moment.

The Tamil Panchangam for 2025 is calculated using Drik Ganita (modern astronomical computation via the Swiss Ephemeris) with the Lahiri Ayanamsha, providing highly accurate timings for all Panchangam elements. Every page on TamilCalendar.com is computed for Chennai, Tamil Nadu (latitude 13.0827°N, longitude 80.2707°E, timezone IST UTC+5:30), which is the standard reference location used by most Tamil printed almanacs.

Tithi (திதி) is the lunar day, determined by the angular distance between the Sun and the Moon. Each Tithi spans approximately 12° and lasts between 19 and 26 hours. There are 15 Tithis in each of the two lunar fortnights (Shukla Paksha — bright half, and Krishna Paksha — dark half), giving 30 Tithis in a lunar month. The Tithi at sunrise governs the whole day for most ritual purposes.

Nakshatra (நட்சத்திரம்) is the lunar mansion, one of 27 star clusters through which the Moon passes during its monthly orbit. Each Nakshatra spans 13°20' of the ecliptic. The Nakshatra at the time of birth is used for naming children (Naamakaran), horoscope matching (Jathagam Porutham), and selecting auspicious Muhurtham timings. Some Nakshatras — Ashwini, Ashlesha, Magha, Jyeshtha, Mula, and Revati — are called Ganda Mool Nakshatras and are considered inauspicious for starting new ventures.

Rahu Kalam (ராகு காலம்) is a daily 90-minute inauspicious period governed by the shadow planet Rahu. Starting new activities during Rahu Kalam is traditionally avoided. Its timing changes each day based on the local sunrise and is unique to the day of the week. Similarly, Yamagandam (எமகண்டம்) and Gulika Kalam (குளிகை காலம்) are two other inauspicious daily windows to be avoided for important activities. In contrast, Nalla Neram (நல்ல நேரம்), derived from the Gowri Panchangam, identifies auspicious segments of each day ideal for beginning new undertakings.

Click any month above to view the complete monthly grid for 2025, or visit today's Nakshatra, today's Rahu Kalam, or today's full Panchangam for real-time astrological information.