Karana (Half-Tithi)

Most people think Karana is just a minor detail in the Panchanga — a footnote to Tithi. In reality, Karana is a precise half-tithi measure that governs the quality of a ~6-hour window, with 11 distinct types (4 fixed, 7 repeating). Documented in the Brihat Samhita and Muhurta Chintamani, Karana determines the elemental energy available for actions, making it indispensable for timing ceremonies, travel, and financial decisions. It is not superstition; it is applied Vedic astronomy that correlates lunar phase fractions with terrestrial outcomes.

01Origins and classical sources

The concept of Karana originates in the Vedanga Jyotisha and is systematically detailed in Varahamihira's Brihat Samhita (6th century CE) and the later Muhurta Chintamani (13th century CE). The Brihat Samhita devotes an entire chapter to Karana, explaining how each half-tithi carries a distinct signature. The seven repeating Karanas — Bava, Balava, Kaulava, Taitila, Gara, Vanija, and Vishti — cycle through each Tithi, while four fixed Karanas (Kinstughna, Shakuni, Chatushpada, Naga) appear only at specific lunar phase boundaries. The tradition holds that the sage Garga first codified the 11-fold system, which the Kalpa Sutras later incorporated into ritual timing.

02Astronomical basis

Karana is defined as half of a Tithi. A Tithi is the time required for the Moon to move 12° ahead of the Sun along the ecliptic, averaging about 24 hours. Thus, one Karana spans roughly 6 hours, though actual duration varies with lunar velocity. The 11 Karanas arise from a mathematical cycle: 7 repeating Karanas × 2 per Tithi = 14 Karanas per lunar day, but the fixed Karanas interrupt the sequence at the start and end of the lunar month. Specifically, Kinstughna occupies the first half of the first Tithi (Shukla Pratipada), while Shakuni, Chatushpada, and Naga fill the latter halves of the final three Tithis of Krishna Paksha. This astronomical precision ensures each Karana corresponds to a measurable arc of lunar motion.

03What it governs

Karana governs the elemental quality of a ~6-hour window, influencing outcomes of actions initiated within it. Bava, Balava, and Kaulava are considered most auspicious for beginnings — weddings, housewarmings, and business launches. Taitila and Gara are neutral but suitable for routine work. Vanija supports commerce and trade. Vishti (also called Bhadra) is the most inauspicious Karana, associated with obstacles, conflict, and loss; it is avoided for all major undertakings. The fixed Karanas have specific domains: Kinstughna for creative work, Shakuni for cunning tasks, Chatushpada for animal-related activities, and Naga for spiritual practices. These assignments are documented in the Muhurta Chintamani.

04How it is calculated

To calculate Karana, first determine the current Tithi and its elapsed fraction. Since one Tithi equals two Karanas, divide the Tithi's duration into two equal halves. The first half of a Tithi always takes the first Karana in the cycle (Bava on most Tithis), and the second half takes the next. The seven repeating Karanas cycle in order: Bava, Balava, Kaulava, Taitila, Gara, Vanija, Vishti. The fixed Karanas override this pattern at specific boundaries: Kinstughna occupies the first half of Shukla Pratipada; Shakuni occupies the second half of Krishna Trayodashi; Chatushpada occupies the second half of Krishna Chaturdashi; Naga occupies the second half of Amavasya. Modern Panchanga software automates this, but manual calculation requires precise lunar longitude data.

05Modern relevance

In contemporary practice, Karana remains a critical filter for Muhurat selection, especially in Hindu weddings and Griha Pravesh. Many Panchanga apps highlight Vishti (Bhadra) as a time to avoid, while Bava and Balava are recommended for new ventures. The fixed Karanas are less commonly used but still consulted in traditional Nadi astrology. For those seeking to align daily activities with cosmic rhythms, Karana offers a practical, time-bound framework — no mysticism required, just applied astronomy.

06Related time concepts

Karana is one of the five limbs of the Panchanga, alongside Tithi (lunar day), Vara (weekday), Nakshatra (lunar mansion), and Yoga (lunar-solar combination). It is often considered the most granular of the five, governing half-day windows. Related concepts include Hora (hourly planetary periods) and Drik Gana (visibility-based divisions). In Vedic astrology, Karana is also used in Prashna (horary) to assess immediate outcomes.

Karana is the half-day pulse of the moon — ignore it, and you act in the dark; align with it, and you move with the tide.

Across traditions

07Frequently asked questions