Narada Purana — Purva Bhaga, Shloka 70
Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
उदयादुदयं भानोर्भूमैः साचेन वासराः । वसुव्द्यष्टाद्रिरूपांकसप्ताद्रितिथयो युगे ॥ ७० ॥
udayādudayaṃ bhānorbhūmaiḥ sācena vāsarāḥ | vasuvdyaṣṭādrirūpāṃkasaptādritithayo yuge || 70 ||
സൂര്യന്റെ ഒരു ഉദയം മുതൽ അടുത്ത ഉദയം വരെ ഭൂമിയിലെ അളവിനെ ‘വാസര’ (ദിവസം) എന്നു പറയുന്നു. യುಗത്തിലെ തിഥികളുടെ എണ്ണം പദ-സംഖ്യകളാൽ— ‘വസു, ദ്വി, അഷ്ട, അദ്രി, രൂപാങ്ക, സപ്ത, അദ്രി’— ഇങ്ങനെ കണക്കാക്കുന്നു.
Sanatkumara (teaching Narada in a Moksha-Dharma context with technical time-reckoning)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
FAQs
It grounds dharma and moksha practice in correct kāla (time): vows, worship, and scriptural duties rely on precise day-and-tithi reckoning, so the Purana defines the day by the Sun’s sunrise-to-sunrise cycle.
Bhakti practices (vratas, fasts, pūjā timings) are performed according to tithi and vāsara; by clarifying how time is measured, the text supports disciplined, accurate devotional observance.
Jyotiṣa Vedāṅga: the definition of vāsara (solar day) and the use of bhūta-saṅkhyā (word-numerals like vasu=8, adri=7) to encode large calendrical counts such as yuga tithis.