Jyotiṣa-saṅgraha: Varga-vibhāga, Bala-nirṇaya, Garbha-phala, Āyuḥ-gaṇanā
हित्वा भाज्यंगभागादीन्कलीकृत्य खखाक्षिभिः । भजेद्वर्षाणि शेषे तु गुणिते द्वादशादिभिः ॥ १२८ ॥
hitvā bhājyaṃgabhāgādīnkalīkṛtya khakhākṣibhiḥ | bhajedvarṣāṇi śeṣe tu guṇite dvādaśādibhiḥ || 128 ||
ให้ละทิ้งส่วนย่อยของตัวตั้งและเศษส่วนก่อนหน้า แล้วแปลงเศษที่เหลือเป็นการนับตามกาลียุคด้วยเลข ‘คะ-คะ-อักษิ’ จากนั้นจึงคำนวณจำนวนปี หากยังมีเศษ ให้คูณด้วยสิบสองและปัจจัยที่เกี่ยวข้อง
Sanatkumara (in instruction to Narada, within a Vedanga-style technical passage)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It presents disciplined, rule-based time-reckoning as part of dharma: correct calendrical knowledge supports right observance of vows, rites, and sacred timings, which in turn stabilizes spiritual practice.
Indirectly: by teaching accurate computation of years and sub-units (months, etc.), it safeguards proper observance of vrata and worship-times—practical supports that sustain steady Vishnu-bhakti in daily life.
Jyotiṣa Vedāṅga (astronomy/astrology and calendrics): converting values into Kali-era counts, handling remainders, and scaling by twelve for subsidiary time divisions used in ritual scheduling.