Amavasya (New Moon) Date & Timing Calculator

In Vedic Astrology (Jyotish Shastra), Amavasya (अमावस्या) represents the thirtieth and final Tithi of the lunar month. It marks the precise astronomical alignment when Surya (the Sun) and Chandra (the Moon) occupy the exact same celestial longitude (0 degree separation). The Sanskrit root "Ama" signifies "together" and "Vasya" signifies "to dwell", describing the cosmic dwelling of the two primary luminaries within a single zodiac mansion.

Classical scriptures such as the Taittiriya Samhita, Rigveda, and Surya Siddhanta divide Amavasya into three distinct astronomical and ritual classifications:

• Darsha Amavasya: Occurs during the first half of the 30th Tithi when a microscopically thin sliver of the Moon is still astronomically detectable before complete occultation. It is named after the Vedic deity Darsha and is considered ideal for preliminary ancestor prayers.
• Sinivali Amavasya: Occurs when the Moon is totally dark and invisible throughout the day and night. Named after Goddess Sinivali, this phase represents absolute zero-point darkness and is reserved for deep meditation and intense Pitru rites.
• Kuhu Amavasya: The final phase of total lunar disappearance when the new crescent has not yet emerged and the Moon is completely swallowed by the solar rays before sunrise.

While Purnima (Full Moon) radiates outward vitality, Amavasya invites profound inward reflection, karmic cleansing, and reverence for departed ancestors.

When Amavasya coincides with specific weekdays, the astrological energy intensifies significantly:

• Somvati Amavasya (Monday): Monday is ruled by Chandra (Moon) and dedicated to Lord Shiva. When Amavasya coincides with Monday, it creates a supreme window for clearing emotional instability, anxiety, and Chandra Dosha in the birth chart. Devotees perform 108 circumambulations (Pradakshinas) around the sacred Peepal tree (Aswatha Vriksha), tying raw white thread to receive longevity, marital harmony, and peace of mind.
• Shani Amavasya (Saturday): Saturday is governed by Lord Shani (Saturn), the dispenser of karmic justice. A New Moon on Saturday provides immediate relief from Saturn Sade Sati, Dhaiya, and retrograde Saturn afflictions. Remedial actions include offering mustard oil, black sesame seeds, black urad dal, and iron items to Lord Shani or needy people during twilight.
• Bhauma Amavasya (Tuesday): Tuesday is governed by Mangal (Mars). A New Moon on Tuesday provides powerful relief from financial debts (Rina Mukti), land disputes, and unresolved family conflicts. Reciting the Hanuman Chalisa 108 times and feeding red lentils to cows are the recommended remedies.

In the Vedic worldview, human existence is bound by three primal cosmic debts (Rinas): Deva Rina (debt to gods), Rishi Rina (debt to sages), and Pitru Rina (debt to ancestors). Amavasya is the designated monthly window to repay Pitru Rina and resolve Pitru Dosha.

According to the Garuda Purana and Markandeya Purana, the dark lunar hemisphere is illuminated by the Sun during Amavasya, providing daylight in Pitruloka. The departed souls draw close to the Earth plane, seeking nourishment and peace:

• Aparahna Kaal Timing: Ancestral offerings must strictly be conducted during the afternoon (Aparahna Kaal), specifically during the Kutup Muhurat (eighth muhurat of the day, roughly 11:45 AM to 12:35 PM) and Rohina Muhurat. Morning and night hours are strictly forbidden for Tarpan.
• Essential Ritual Ingredients: Pure water mixed with Gangajal, black sesame seeds (Kala Til), Kusha grass rings worn on the ring finger, barley (Yava), white flowers, and raw milk in a copper or brass vessel.
• Panchabali Karma: Before the household eats, portions of food must be offered to five sacred recipients: Cow (Go-bali), Crow (Kaka-bali), Dog (Shvan-bali), Ants (Pipilika-bali), and Brahmins or spiritual seekers.

In Muhurat Shastra (electional astrology), Amavasya is classified among the Tithis that lack Paksha Bala (lunar strength). In any birth chart or Muhurat chart, Chandra represents the conscious mind (Manas), neurochemical stability, blood fluids, motherly protection, and public reception.

On Amavasya, the Moon's illumination is zero percent, meaning external vitality is completely hidden:

• Activities to Avoid: Commercial business launches, signing major property contracts, Griha Pravesh (housewarming ceremonies), solemnizing marriages, purchasing new vehicles, and beginning long journeys. Material investments initiated under zero lunar light often suffer from lack of public visibility or emotional exhaustion.
• Spiritual Activities Favored: Deep meditation (Dhyana), pranayama, mantra sadhana, mental detoxification, fasting, releasing toxic habits, and charitable donations. The absence of external lunar stimulation makes Amavasya the most potent day for inward self-realization.

Observing an Amavasya fast cleanses accumulated mental impurities and purifies the physical digestive tract:

• Morning Sankalpa: Wake up during Brahma Muhurat (approximately 90 minutes before sunrise). Bathe in water infused with black sesame seeds or Gangajal. Take a solemn vow (Sankalpa) facing east for ancestral peace and mental serenity.
• Dietary Discipline: Devotees observe either a complete water fast (Nirjala Vrat) or a single-meal fruit diet (Phalahar). Grains, pulses, onion, garlic, non-vegetarian food, alcohol, and processed sugars are strictly avoided.
• Evening Puja: Light a two-faced or four-faced mustard oil diya under a Peepal tree in the evening. Chant the Maha Mrityunjaya Mantra, Gayatri Mantra, or Shiva Panchakshara Stotram ("Om Namah Shivaya") 108 times for mental serenity.

The lunar month operates on a continuous dynamic polarity between Amavasya and Purnima:

Many devotees wonder why the Amavasya date or fasting day can differ between New Delhi, New York, London, and Sydney:

• Universal Conjunction vs Local Tithi: The astronomical moment when the Sun and Moon meet at the exact same celestial longitude occurs simultaneously across the globe in UTC. However, local civil clocks show different local times based on geographical longitude.
• Udaya Tithi Principle: In Vedic Panchang tradition, a festival or fast date is determined by the Tithi prevailing at the exact moment of local sunrise (Surya Udaya). Because sunrise happens hours apart in different longitudes, a Tithi may be present at sunrise in New Delhi but may have ended before sunrise in London or New York.
• Aparahna Vyapini for Tarpan: For ancestral Tarpan, the Tithi must prevail during the local afternoon (Aparahna Kaal). AstroLeaf calculates local sunrise, sunset, and afternoon boundaries for your specific coordinates, providing 100% geographically tailored timings.

Each lunar month in the Hindu calendar features an Amavasya with distinct spiritual and astrological significance:

• 1. Chaitra Amavasya (March to April): Marks the conclusion of the Hindu astrological year, preparing seekers for Chaitra Navratri and the arrival of the New Lunar Year.
• 2. Vaishakha Amavasya (April to May): Associated with Darsha Amavasya and charity of water earthen pots (Matkas) to protect travelers from intense summer heat.
• 3. Jyeshtha Amavasya (May to June): Celebrates the birth anniversary of Lord Shani Dev (Shani Jayanti) and the auspicious Vat Savitri Vrat for married women seeking family longevity.
• 4. Ashadha Amavasya (June to July): Haliharini Amavasya; celebrated by agricultural communities to honor farming tools and Mother Earth ahead of the monsoon planting season.
• 5. Shravana Amavasya (July to August): Hariyali Amavasya; dedicated to Lord Shiva and tree planting. Devotees offer water to Peepal and Banyan trees for planetary peace.
• 6. Bhadrapada Amavasya (August to September): Pithori Amavasya; mothers observe fasts for the health and prosperity of children, invoking the 64 Yoginis.
• 7. Ashwin Amavasya (September to October): Mahalaya / Sarva Pitru Amavasya; the supreme ancestral day of the entire year, marking the climax of Pitru Paksha when all departed souls receive Tarpan before returning to Pitruloka.
• 8. Kartik Amavasya (October to November): Celebrated globally as Diwali (Deepawali). Devotees light thousands of earthen diyas to welcome Goddess Lakshmi and Lord Ganesha into their homes.
• 9. Margashirsha Amavasya (November to December): Marks the commencement of cold winter observances and deep meditative introspection.
• 10. Pausha Amavasya (December to January): Dedicated to sacred river dips at Prayagraj Sangam and charity of warm blankets and sesame.
• 11. Magha Amavasya (January to February): Mauni Amavasya; one of the most sacred bathing days in Hinduism. Devotees observe strict silence (Maun Vrat) and bathe at the Triveni Sangam during the Kumbh and Magh Melas.
• 12. Phalguna Amavasya (February to March): Marks the prelude to Mahashivratri and Holika celebrations, providing an ideal window for ancestral Tarpan.