Tithi-Nirṇaya for Vratas: Ekādaśī Rules, Saṅkrānti Punya-kāla, Eclipse Observances, and Prāyaścitta
परास्त्रिंशश्च घटिकाश्चत्वारिंशच्च पूर्ववत् । आदित्यशीतकिरणौ ग्राह्यावस्तंगतौ यदि ॥ २५ ॥
parāstriṃśaśca ghaṭikāścatvāriṃśacca pūrvavat | ādityaśītakiraṇau grāhyāvastaṃgatau yadi || 25 ||
此外,如前所述,还应计三十六与四十伽提迦。若日与清凉光辉之月皆已没落,则这些时分亦当随其情形而取。
Sanatkumara (in instruction to Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It emphasizes kāla-śuddhi—correct reckoning of time—because accurate time determination supports the purity and efficacy of Vedic observances and dharmic duties.
While not directly teaching bhakti, it supports devotional practice by ensuring that vows, worship timings, and ritual observances are performed at properly determined times.
Vedāṅga Jyotiṣa: the use of ghaṭikā-based time measurement and the rule that when Sun and Moon have set, time-points must be computed/accepted with that condition in view.