Narada Purana — Purva Bhaga, Shloka 14
Tithi-Nirṇaya for Vratas: Ekādaśī Rules, Saṅkrānti Punya-kāla, Eclipse Observances, and Prāyaścitta
क्षये पूर्वा प्रशस्ता स्याद्रृद्धौ कार्या तथोत्तरा । अर्ध्दरात्रद्वयव्यात्पा तिथिर्नक्षत्रसंयुता ॥ १४ ॥
kṣaye pūrvā praśastā syādrṛddhau kāryā tathottarā | ardhdarātradvayavyātpā tithirnakṣatrasaṃyutā || 14 ||
তিথি ক্ষয় হ’লে পূৰ্বাংশ প্ৰশস্ত, আৰু তিথি বৃদ্ধি হ’লে উত্তৰাংশত কৰ্ম কৰা উচিত। নক্ষত্ৰ-সংযুক্ত হৈ দুটা অর্ধৰাত্ৰি জুৰি ব্যপ্ত তিথি মুহূৰ্ত-নিৰ্ণয়ত গণ্য।
Narada (teaching traditional kala-nirnaya/auspicious time rules in the Narada Purana’s technical guidance)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
FAQs
It teaches dharmic precision in worship: selecting the correct portion of time (kāla) aligns a rite with cosmic order, making vrata, pūjā, and saṁskāra more effective and free from timing दोष (doṣa).
Bhakti is not only feeling but also disciplined practice; by observing proper tithi and nakṣatra timing, a devotee honors sacred order and performs devotion with care, steadiness, and scriptural alignment.
Jyotiṣa Vedāṅga (astronomical/astrological timekeeping): it gives a rule for choosing the earlier or later part of a tithi depending on kṣaya (decline) or vṛddhi (increase), and notes special consideration when a tithi spans two midnights along with nakṣatra association.