Tithi (Tithi) is lunar days -- phases of the Moon relative to the Sun, each spanning 12 degrees. In the Panchang (Vedic calendar), tithi is one of the five key elements for determining the quality of a day. Total: 30 tithis. Calculation factors: Moon-Sun distance, 15 + 15 tithis (Shukla + Krishna Paksha).
What Is Tithi in Panchang
Tithi represents a specific angular relationship between the Moon and the Sun. Unlike a solar day, which is fixed at 24 hours, a tithi is defined by the time it takes for the angular distance between the Moon and Sun to increase by 12 degrees. The cycle begins at 0 degrees (Amavasya, New Moon) and progresses through 360 degrees, completing 30 tithis. The first 15 tithis, from 0 to 180 degrees, constitute the Shukla Paksha (waxing phase), where the Moon's illumination increases. The subsequent 15 tithis, from 180 to 360 degrees, form the Krishna Paksha (waning phase), where the Moon's illumination decreases.
The duration of a tithi is variable, ranging from approximately 19 to 26 hours. This variability arises because the Moon and Sun move at different speeds in the zodiac, and their relative speeds are not constant. The calculation involves continuously monitoring the geocentric longitudes of the Moon and the Sun. When the angular separation reaches multiples of 12 degrees, a new tithi begins. This precise astronomical mechanism provides a qualitative indicator for daily planning, offering insights into the prevailing impulse of the day based on the lunar phase.
Complete List of 30 tithis
The 30 tithis are categorized into two pakshas (fortnights), each with distinct qualities.
Shukla Paksha (Waxing Fortnight):
1. Pratipada (Nanda): Ruler: Agni. Favorable for new beginnings, planting, and creative pursuits.
2. Dwitiya (Bhadra): Ruler: Brahma. Auspicious for establishing new ventures, laying foundations, and financial transactions.
3. Tritiya (Jaya): Ruler: Gauri. Good for courage, negotiations, and overcoming challenges.
4. Chaturthi (Rikta): Ruler: Ganesha. Generally inauspicious for new auspicious undertakings; favored for addressing obstacles.
5. Panchami (Purna): Ruler: Naga. Highly auspicious for all kinds of beneficial activities, healing, and growth.
6. Shashthi (Nanda): Ruler: Kartikeya. Favorable for artistic endeavors, learning, and social gatherings.
7. Saptami (Bhadra): Ruler: Surya. Auspicious for travel, public dealings, and starting journeys.
8. Ashtami (Jaya): Ruler: Shiva. Good for confronting difficulties, legal matters, and purification rituals.
9. Navami (Rikta): Ruler: Durga. Generally unfavorable for new beginnings; suitable for defense and martial activities.
10. Dashami (Purna): Ruler: Yama. Highly auspicious for all actions, particularly those requiring stability and longevity.
11. Ekadashi (Nanda): Ruler: Vishwadeva. Favorable for spiritual practices, fasting, and philanthropic activities.
12. Dwadashi (Bhadra): Ruler: Vishnu. Auspicious for religious ceremonies, commitments, and seeking blessings.
13. Trayodashi (Jaya): Ruler: Kamadeva. Good for celebrations, friendships, and sensual pleasures.
14. Chaturdashi (Rikta): Ruler: Shiva. Generally inauspicious for new ventures; suitable for purification and concluding tasks.
15. Purnima (Purna): Ruler: Moon. Highly auspicious for spiritual practices, meditation, celebrations, and creative expression.
Krishna Paksha (Waning Fortnight):
16. Pratipada (Nanda): Ruler: Agni. Similar to Shukla Pratipada, but with a waning lunar impulse, suitable for initiating tasks that conclude quickly.
17. Dwitiya (Bhadra): Ruler: Brahma. Favorable for financial planning, administrative tasks, and stable activities.
18. Tritiya (Jaya): Ruler: Gauri. Good for strategic planning, resolving disputes, and assertive actions.
19. Chaturthi (Rikta): Ruler: Ganesha. Avoid new auspicious ventures; suitable for addressing and overcoming challenges.
20. Panchami (Purna): Ruler: Naga. Auspicious for healing, seeking advice, and consolidating gains.
21. Shashthi (Nanda): Ruler: Kartikeya. Favorable for artistic pursuits, education, and social interactions.
22. Saptami (Bhadra): Ruler: Surya. Auspicious for travel, public speaking, and engaging with authorities.
23. Ashtami (Jaya): Ruler: Shiva. Good for transformative processes, legal actions, and overcoming opposition.
24. Navami (Rikta): Ruler: Durga. Generally unfavorable for new beginnings; suitable for defense or confrontation.
25. Dashami (Purna): Ruler: Yama. Highly auspicious for all activities, particularly those requiring discipline and structure.
26. Ekadashi (Nanda): Ruler: Vishwadeva. Favorable for spiritual reflection, fasting, and charitable acts.
27. Dwadashi (Bhadra): Ruler: Vishnu. Auspicious for religious observances, commitments, and seeking divine support.
28. Trayodashi (Jaya): Ruler: Kamadeva. Good for enjoyment, social events, and expressing affection.
29. Chaturdashi (Rikta): Ruler: Shiva. Generally inauspicious for new ventures; suitable for cleansing and concluding phases.
30. Amavasya (Purna): Ruler: Pitrus (Ancestors). Auspicious for ancestral rites, spiritual introspection, and planning future endeavors, but not for initiating material projects.
Auspicious and Inauspicious Tithi
Tithis are categorized based on their inherent qualities, guiding the selection of appropriate activities. The classification often groups tithis into five types: Nanda (joy), Bhadra (prosperity), Jaya (victory), Rikta (empty), and Purna (full/complete).
Nanda tithis (1st, 6th, 11th) are generally favorable for activities that promote joy, pleasure, and growth, such as gardening, starting creative projects, or social gatherings. Bhadra tithis (2nd, 7th, 12th) are conducive to financial matters, business dealings, and establishing new ventures, as they carry an impulse for prosperity and stability. Jaya tithis (3rd, 8th, 13th) are associated with victory and success, making them suitable for confrontations, legal actions, or assertive tasks. Purna tithis (5th, 10th, 15th, and Amavasya/Purnima as the full cycle points) are considered universally auspicious for nearly all significant undertakings, including weddings, initiations, and major ceremonies, as they denote completeness.
Conversely, Rikta tithis (4th, 9th, 14th) are generally considered unfavorable for initiating auspicious events like weddings, new businesses, or important journeys. These tithis are better suited for activities like clearing old debts, addressing challenges, or concluding tasks. Amavasya is traditionally reserved for ancestral rites and spiritual reflection, while Purnima is ideal for spiritual practices, celebrations, and artistic expression. Understanding these classifications allows for a more informed approach to daily planning, aligning actions with the prevailing celestial impulse.
Tithi and Daily Life
Integrating tithi knowledge into daily life provides a framework for optimizing activities. For significant life events, selecting an appropriate tithi can contribute to a more harmonious outcome.
For weddings, Purna tithis (Panchami, Dashami, Purnima) and Nanda tithis (Pratipada, Shashthi, Ekadashi) are often preferred, especially in the Shukla Paksha, as they are associated with completeness, joy, and growth. Rikta tithis are generally avoided. When undertaking business ventures or signing contracts, Bhadra tithis (Dwitiya, Saptami, Dwadashi) offer a supportive impulse for prosperity and stable foundations. Initiating new projects on these tithis can enhance their longevity and success.
For travel, Saptami and Dwadashi tithis are considered favorable, particularly for long journeys, as they are associated with movement and safe passage. Avoiding Rikta tithis for major travel plans is a common practice. Significant purchases, such as property or vehicles, are often aligned with Purna or Bhadra tithis to ensure durability and value. Even daily tasks can be enhanced; for instance, creative work might flourish on Nanda tithis, while problem-solving could be more effective on Jaya tithis. By understanding the specific qualities of each tithi, individuals can make choices that resonate with the celestial pattern of the day.
Tithi and Muhurta
In the realm of Muhurta, or electional astrology, tithi is a foundational component, forming one of the five elements (Panchanga) used to determine the most opportune timing for an event. Muhurta aims to select a precise moment when the combined celestial influences are most conducive to the desired outcome.
Tithi provides the inherent lunar quality of the chosen day, acting as a primary filter. For example, while a certain Nakshatra (lunar mansion) might be favorable for a wedding, if it falls on a Rikta tithi, the overall auspiciousness of the Muhurta could be significantly diminished. The tithi sets the overarching tone, indicating whether the day's impulse is generally supportive, neutral, or challenging for new beginnings or specific actions. A Muhurta calculation involves harmonizing the tithi with the Vara (weekday), Nakshatra, Karana, and Yoga. The interplay of these five elements creates a nuanced assessment of the moment's suitability. A well-chosen tithi can enhance the positive attributes of other Panchanga elements, while an unfavorable tithi can introduce obstacles, even if other factors appear supportive. This holistic approach ensures that the selected time possesses a robust and integrated celestial impulse for success.
How to Find Today's Tithi
Finding today's tithi involves a precise astronomical calculation based on the current positions of the Moon and the Sun. The process requires knowing the geocentric longitudes of both celestial bodies at a specific moment for a given location.
The calculation begins by determining the angular difference between the Moon's longitude and the Sun's longitude (Moon Longitude - Sun Longitude). This difference, expressed in degrees, is then divided by 12, as each tithi spans 12 degrees of separation. The integer part of the result indicates the current tithi number. For example, if the difference is 35 degrees, 35/12 = 2 with a remainder, indicating the 3rd tithi (Dwitiya). If the difference is 185 degrees, 185/12 = 15 with a remainder, indicating the 16th tithi (Krishna Pratipada). Due to the continuous movement of the Moon and Sun, tithis change throughout the day. Reliable astrological software and online Panchang calculators automatically perform these complex computations, often leveraging sophisticated ephemeris data, such as that provided by Swiss Ephemeris. These tools provide accurate, real-time tithi information for any location, eliminating the need for manual calculation for daily use.
### FAQ
FAQ -- Frequently Asked Questions
What is tithi in Panchang?
Tithi is a lunar day, defined by a 12-degree angular separation between the Moon and the Sun. It is one of the five key elements of the Vedic calendar, indicating the qualitative impulse of a day for planning activities. There are 30 tithis in a lunar month, divided into waxing (Shukla Paksha) and waning (Krishna Paksha) phases.
What is today's tithi?
Today's tithi depends on your specific geographic location and the current time, as the Moon and Sun are continuously moving. To find today's tithi, you would consult a reliable online Panchang calculator or an astrological application that computes celestial positions in real-time for your coordinates.
Which tithi are auspicious for a wedding?
For a wedding, auspicious tithis generally include the Purna tithis (Panchami, Dashami, Purnima) and Nanda tithis (Pratipada, Shashthi, Ekadashi), especially during the Shukla Paksha (waxing Moon). Rikta tithis (Chaturthi, Navami, Chaturdashi) are typically avoided for such significant events.
How to calculate tithi?
Tithi is calculated by finding the angular difference between the geocentric longitudes of the Moon and the Sun. This difference is then divided by 12 degrees. The resulting integer value, adjusted for the 30-tithi cycle, indicates the current tithi. This calculation is best performed using specialized software or online tools that incorporate precise astronomical data.
How does tithi in Panchang differ from the Western calendar?
Tithi in Panchang differs from the Western calendar primarily because it is a lunar day based on the Moon-Sun angular relationship, resulting in a variable duration. The Western calendar uses fixed-length solar days. Tithis also carry specific qualitative meanings for planning, whereas Western calendar days are primarily chronological units without inherent qualitative associations.
Myth
A common misconception surrounding tithi is that it is merely a "lunar day" in a vague, mystical sense, or that it "carries energy" in an undefined manner. This perspective often leads to a misunderstanding of its practical application and astronomical basis. The reality is that tithi is a precise, geometrically defined unit derived from the angular separation between the Moon and the Sun. It is not an abstract mystical force but a quantifiable celestial parameter.
Tithis do not "carry energy" in a magical sense; rather, the specific angular relationship between the Moon and Sun corresponds to observable patterns in natural phenomena and human experience. These patterns have been cataloged and correlated over millennia, leading to the assignment of specific qualitative impulses to each tithi. Therefore, understanding tithi is not about tapping into an unseen "vibration" but about recognizing a predictable celestial mechanism that influences the suitability of a particular time for certain actions. The mechanism is rooted in observable astronomy, providing a rational framework for daily and event planning, rather than relying on unquantifiable mystical concepts.
Source
The foundational principles and applications of tithi are documented in classical Vedic texts.
The astronomical mechanism for calculating tithi, based on the relative positions and movements of the Sun and Moon, is meticulously detailed in ancient treatises such as the Surya Siddhanta. This text provides the algorithms for determining planetary longitudes, which are essential for computing the precise angular separation that defines each tithi. It establishes the mathematical framework for understanding the variable duration and progression of tithis throughout the lunar month.
The qualitative descriptions and practical applications of each tithi, including their auspiciousness and suitability for various activities, are extensively discussed in texts like the Brihat Parashara Hora Shastra (BPHS). BPHS outlines the rulers of tithis and their general characteristics, providing the interpretive basis for their use in daily life and electional astrology. Further practical guidance on integrating tithi into Muhurta (electional astrology) for selecting propitious timings for specific events can be found in specialized works such as the Muhurta Chintamani. These sources collectively form the authoritative basis for the understanding and application of tithi in Vedic astrology.