Mahabharata 1.43.20

प्रादुष्कृताग्निहोत्रोऽयं मुहूर्तो रम्यदारुणःसंध्या प्रवर्तते चेयं पश्चिमायां दिशि प्रभो

prāduṣkṛtāgnihotro'yaṃ muhūrto ramyadāruṇaḥsaṃdhyā pravartate ceyaṃ paścimāyāṃ diśi prabho

Our plain-language meaning of this verse is waiting for scholar review.