A Tithi is the first phase/portion of the 16 phases of the Moon. It’s a lunar day. There are 15 Tithis in the complete waxing cycle of the Moon (Shukla Paksha or the brighter phase) that commences from Amavasya (the last day of the dark half of a lunar month) and ends at Purnima (Full Moon). Similarly, the other 15 Tithis are a part of the waning cycle of the moon (Krishna Paksha or the darker phase) that starts from the Purnima and ends at Amavasya.

In general, the Tithi is defined as per the correlation between the Sun and the Moon. The first Tithi is 12° of the Moon away from the Sun after the New Moon or Full Moon (Amavasya or Purnima). The second Tithi is the next 12-degree of the Moon away from the Sun. Unlike days that are defined by the Tithi at sunrise, the Tithis can change any time of the day or night as they aren’t defined by the Solar day. There’s no specific good tithi for birth, but all individuals born in specific Tithis have certain qualities (discussed below).

This is the time during which the difference of the increment of longitude of the Sun and the Moon amounts to 12. Each Tithi or Lunar day is equal to 0.9483 of a day so that a lunar month when the Moon completes a 360-degree rotation is equal to about 29.53 days.

Thithi can be found from any horoscope if we know the positions of the Sun and Moon in the natal chart. In Indian Astrology, the calculation of the Tithis starts from Pratipada (The first day in each half of the lunar month) of the Shukla-Paksha. 

Each of the Tithis has a given name, a ruling planet, and can be used in muhurtas for an auspicious event. Depending on the movement of the Moon, Tithis vary in duration from approximately 19 to 26 hours.

Significance of Tithis and Pakshas in Astrology

Tithi is one of the five elements of the Hindu Panchang, while the rest 5 are Nakshatra, yoga, Vara, and Karana. The duration of each Tithi can vary anywhere between 21.5 hours to 26 hours. The traditional Indian Hindu calendar and nearly all Hindu festivals are defined as per Tithi.

According to the Vedic astrology, an individual’s birth Tithi can majorly influence their life and personality. Tithi also forms the basis of identifying auspicious and inauspicious muhurat.

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If you know someone who’s born in the Shukla paksha or a Krishna paksha baby boy, they will have similar characteristics if their Tithis are the same. It is believed that the characteristics of an individual born on the same Tithi of the increasing or decreasing lunar cycle are the same. However, it’s not the case with people who have Amavasya as their birth Tithi.

A child born in Shukla paksha is known to be rich, hardworking, and well-knowledgeable w.r.t the Shastras. He/she will be quite a learned individual and will know how to progress in his/her life. Other than pakshas, another factor that defines our personality & fate is whether we’re born during the daytime or at night or on any specific Tithi.

As per astrology, people/babies born on Amavasya day are slow at picking up things when they’re young, but as they start growing old, they start creating an impact to not only change the things but also create an impression on the surrounding crowd. They are little offbeat and tend to focus on self-realization and acquire knowledge about politics. Many astrologers believe the birth on Amavasya tithi as inauspicious because it’s believed that negative energy is more effective on the New Moon night and the child born on Amavasya can have defects in his/her horoscope.

Influence of Tithis

Influence of Tithis (Lunar days) on a person born in a particular ‘Tithi’, according to “Yavana Jathaka” is given below: 

Lunar Day Names of Thithis Explanation
1st Pratipada The person born in this lunar day will have a good wife and also enjoy extra-marital relationships.
2nd Dwitiya The person born on this day will seek the truth. This person will be liked by all and will be skilled in using weapons. This person will be happy right from birth, and will also be attentive to his/her work.
3rd Thritiya Those born on this day will be immoral and will be after immoral women. They will be bent on harming others owing to their tremendous energy.
4th Charturthi Those born on this day will be greedy and will not be helpful to others. They will also be secretive,  fierce, adventurous, fickle-minded, and crafty.
5th Panchami Those born on this day will be intelligent and live long. They will have a strong moral character.
6th Shrashti Those born on this day will have more male progeny. They will be after sensual pleasures and will have a big circle of friends.
7th Saptami Those born on this day will be rich and will have good character. They will respect elders and learned men.
8th Ashtami People born on Ashtami are faithful to their spouses, have many interests, and speak well.
9th Navami Those born on this day will be passionate and courageous. They will be interested in and talented to pursue arts and will be deadly to their opponents.
10th Dasami Those born on this day will be highly successful in business pursuits. They will be highly intelligent, well-versed in sciences, and will have strong convictions.
11th Ekadasi Those born on this day will be unprincipled. They are jealous of other’s progress. Their mind will be occupied by thoughts of cohabiting with women.
12th Dwadasi The person born on this day will be popular with women and amass wealth. This person will have many enemies but will handle them intelligently.
13th Trayodasi The person born on this day will have a wide circle of relatives who will make them happy. This person will be pure at heart, enjoy good health. and will do everything with great care and perfection.
14th Chaturadasi Those persons born on this day will have a healthy body and a great personality. They will have convictions of their own on everything.
(in the bright half
of the month)
Pournami The person born on this day will keep long hair, live up to 80 years of age, and will be highly fortunate, in all undertakings.
(in the dark half
of the month)
Amavasya The person born on this day will become deadly to opponents and will enjoy a good life.
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Generally, a person born in the bright half of the month will have a long life, will be helpful to others, will be a great friend, and win over women easily.

The person born in the dark half of the month will harbor thoughts of harming others and have rustic speech. This person may not have order and discipline in life.

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