Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
सप्तोर्द्धनावशेषौ तौ विज्ञेयौ मासवर्षपौ । स्नेहस्य भगणाभ्यस्तो दिनराशिः कुवासरैः ॥ ८१ ॥
saptorddhanāvaśeṣau tau vijñeyau māsavarṣapau | snehasya bhagaṇābhyasto dinarāśiḥ kuvāsaraiḥ || 81 ||
ওই দুই অবশিষ্ট—সাত ও অর্ধেক রেখে—মাস ও বছররূপে বুঝতে হবে। আর প্রদত্ত পরিমাণে ভগণ (চক্র) প্রয়োগ করে যে দিনসমষ্টি পাওয়া যায়, তা প্রাপ্ত বার (বাসর) অনুযায়ী প্রকাশ করতে হবে॥
Narada (teaching technical computation in the Vedanga/astronomical mode within the Moksha-Dharma section)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It frames sacred time (māsa, varṣa, and vāra) as something knowable through precise reckoning, supporting dharmic practice by aligning vows, rites, and observances with correctly computed calendrical time.
Indirectly: by emphasizing correct time computation, it underpins bhakti-based vratas and pūjā schedules—devotion becomes steadier and more disciplined when performed at properly determined sacred times.
Jyotiṣa Vedāṅga: using bhagaṇa (astronomical cycles) and remainders to derive month/year measures and then converting the computed day-total into weekday (vāra) reckoning.