Amavasya / Purnima Vrat Calendar 2018
A month-by-month list of every Purnima (full moon) and Amavasya (new moon) of the year, named by its lunar month, with the festivity kept on it — from Holi, Buddha Purnima, Guru Purnima and Sharad Purnima to Mauni Amavasya, Mahalaya and Diwali — and the tithi start and end timing of each.
Amavasya / Purnima Vrat 2018 lists 25 dates, beginning with Pausha Purnima on 2 January.
Full Moon & New Moon Days
January 2018
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Pausha Purnima Vrat
Tithi 11:44 AM, Jan 1 – 7:54 AM
The full moon (Purnima) — a day for fasting, a holy dip, charity and Satyanarayana Puja. It is also kept as Shakambhari Purnima.
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Magha Amavasya (Mauni Amavasya)
Tithi 5:11 AM – 7:50 AM, Jan 17
The new moon of Magha — Mauni Amavasya, kept in silence (mauna) with a holy dip, the most sacred bathing day of the Magha Mela.
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Magha Purnima
Tithi 10:22 PM, Jan 30 – 6:55 PM
The full moon of Magha (Maghi Purnima) — the great day of the Magha snana, a holy bath at the sacred river confluences.
February 2018
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Phalguna Amavasya Vrat
Tithi 12:47 AM – 2:42 AM, Feb 16
The new moon (Amavasya) — a day for ancestral tarpan and Shraddha, and quiet worship of Shiva and the Pitrs.
March 2018
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Phalguna Purnima (Holi)
Tithi 8:57 AM – 6:21 AM, Mar 2
The full moon of Phalguna — Holika Dahan and Dol Purnima, the full moon of the Holi festival.
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Chaitra Amavasya Vrat
Tithi 6:22 PM, Mar 16 – 6:45 PM
The new moon (Amavasya) — a day for ancestral tarpan and Shraddha, and quiet worship of Shiva and the Pitrs.
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Chaitra Purnima (Hanuman Jayanti)
Tithi 7:32 PM, Mar 30 – 6:03 PM
The full moon of Chaitra — kept as Hanuman Jayanti across much of India.
April 2018
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Vaishakha Amavasya Vrat
Tithi 8:51 AM, Apr 15 – 7:27 AM
The new moon (Amavasya) — a day for ancestral tarpan and Shraddha, and quiet worship of Shiva and the Pitrs.
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Vaishakha Purnima (Buddha Purnima)
Tithi 6:24 AM, Apr 29 – 6:28 AM
The full moon of Vaishakha — Buddha Purnima, the birth, enlightenment and nirvana of Gautama Buddha.
May 2018
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Jyeshtha Amavasya (Shani Jayanti)
Tithi 7:49 PM, May 14 – 5:21 PM
The new moon of Jyeshtha — Shani Jayanti, the appearance day of Lord Shani; in the south, Vat Savitri Vrat falls on this new moon.
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Adhik Jyeshtha Purnima Vrat
Tithi 6:38 PM, May 28 – 7:45 PM
The full moon of the leap month (Adhik / Purushottam Jyeshtha) of 2018 — held especially meritorious for fasting and the worship of Lord Vishnu.
June 2018
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Adhik Jyeshtha Amavasya Vrat
Tithi 4:34 AM – 1:21 AM, Jun 14
The new moon of the leap month (Adhik Jyeshtha) of 2018.
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Jyeshtha Purnima (Vat Purnima)
Tithi 8:07 AM, Jun 27 – 10:22 AM
The full moon of Jyeshtha — Vat Purnima, when married women circle the banyan for their husbands, and Deva Snana Purnima of Lord Jagannath.
July 2018
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Ashadha Amavasya Vrat
Tithi 12:03 PM, Jul 12 – 8:17 AM
The new moon (Amavasya) — a day for ancestral tarpan and Shraddha, and quiet worship of Shiva and the Pitrs. Kept as Halharini / Deep Amavasya.
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Ashadha Purnima (Guru Purnima)
Tithi 11:16 PM, Jul 26 – 1:50 AM, Jul 28
The full moon of Ashadha — Guru Purnima, a day to honour one's guru and the sage Veda Vyasa.
August 2018
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Shravana Amavasya (Hariyali Amavasya)
Tithi 7:07 PM, Aug 10 – 3:27 PM
The new moon of Shravana — Hariyali Amavasya, when saplings are planted and Lord Shiva is worshipped in the monsoon greenery.
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Shravana Purnima (Raksha Bandhan)
Tithi 3:19 PM, Aug 25 – 5:28 PM
The full moon of Shravana — Raksha Bandhan and Narali Purnima, also the day of Upakarma (sacred-thread renewal).
September 2018
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Bhadrapada Amavasya Vrat
Tithi 2:42 AM – 11:28 PM
The new moon (Amavasya) — a day for ancestral tarpan and Shraddha, and quiet worship of Shiva and the Pitrs. Kept as Kushotpatini (Pithori) Amavasya, when kusha grass is gathered for the year's rituals.
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Bhadrapada Purnima Vrat
Tithi 7:30 AM, Sep 24 – 8:22 AM
The full moon (Purnima) — a day for fasting, a holy dip, charity and Satyanarayana Puja. It falls on the eve of Pitru Paksha; the Proshthapadi Purnima Shraddha is offered.
October 2018
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Ashwina Amavasya (Mahalaya)
Tithi 11:24 AM, Oct 8 – 9:16 AM
The new moon of Ashwina — Mahalaya / Sarva Pitru Amavasya, the last and most important day of Pitru Paksha for ancestral tarpan.
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Ashwina Purnima (Sharad Purnima)
Tithi 10:38 PM, Oct 23 – 10:22 PM
The full moon of Ashwina — Sharad Purnima and Kojagari Lakshmi Puja, when kheer is set out under the harvest moon.
November 2018
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Kartika Amavasya (Diwali)
Tithi 10:25 PM, Nov 6 – 9:26 PM
The new moon of Kartika — the Diwali night of Lakshmi Puja and Kali Puja in Bengal.
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Kartika Purnima (Dev Deepavali)
Tithi 1:02 PM, Nov 22 – 11:09 AM
The full moon of Kartika — Dev Deepavali and Guru Nanak Jayanti, when ghats and temples blaze with rows of lamps.
December 2018
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Margashirsha Amavasya Vrat
Tithi 12:03 PM, Dec 6 – 12:49 PM
The new moon (Amavasya) — a day for ancestral tarpan and Shraddha, and quiet worship of Shiva and the Pitrs.
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Margashirsha Purnima (Datta Jayanti)
Tithi 2:10 AM – 11:24 PM
The full moon of Margashirsha — kept with the worship of Lord Dattatreya (Datta Jayanti).
Tithi start and end times are shown in your local time. Festival dates follow the standard Indian (sunrise) calendar and may vary by a day in other regions, and may differ slightly from regional almanacs (especially around an Adhik Maas).
About the Amavasya / Purnima Vrat Calendar
A month-by-month list of every Purnima (full moon) and Amavasya (new moon) of the year, named by its lunar month, with the festivity kept on it — from Holi, Buddha Purnima, Guru Purnima and Sharad Purnima to Mauni Amavasya, Mahalaya and Diwali — and the tithi start and end timing of each.
Each entry lists the festival or vrat with its date, the prevailing tithi, and a short note on the observance. Dates are shown for the current and the coming year.