Thithis hold a pivotal position in Hindu religious and cultural traditions by governing the propitious and inauspicious moments for a wide array of rituals, ceremonies, and events. Certain Thithis are deemed more auspicious for specific activities, while others are shunned for particular purposes.

The “Amavasya” Thithi, occurring on the New Moon day, is commonly regarded as unfavorable for numerous undertakings. Conversely, “Purnima,” the Thithi corresponding to the Full Moon day, is frequently seen as a favorable time for prayers and religious observances.