Tithi-vicara
Determination of Tithi for Fasts, Parana, and Pitri Rites
पारणे मरणे नॄणां तिथिस्तात्कालिकी स्मृता । पित्र्येऽस्तमनवेलायां स्पर्शे पूर्णा निगद्यते ॥ १५ ॥
pāraṇe maraṇe nṝṇāṃ tithistātkālikī smṛtā | pitrye'stamanavelāyāṃ sparśe pūrṇā nigadyate || 15 ||
Bagi pāraṇa (memutuskan puasa) dan saat kematian seseorang, tithi hendaklah diambil menurut tithi yang sedang berlaku pada detik itu. Namun bagi upacara pitṛ-karman (ritus leluhur), apabila tithi menyentuh waktu sekitar matahari terbenam, maka ia dinyatakan “sempurna” dan terpakai sepenuhnya.
Narada
Vrata: none
Primary Rasa: shanta
Secondary Rasa: bhakti
It preserves dharmic precision in time-keeping: different sacred acts require different tithi rules, ensuring that vrata observance and pitṛ-tarpaṇa/śrāddha are performed in the correct temporal window.
It supports bhakti through disciplined observance—proper pāraṇa timing protects the integrity of a Vishnu-centered vrata, while correct pitṛ rites uphold gratitude and dharma, both considered supportive to spiritual progress.
Vedāṅga Jyotiṣa (Vedic calendrics/astronomy): it distinguishes “moment-prevailing tithi” for pāraṇa and death from the “sunset-contact tithi counted as complete” rule used for pitṛ rites.