Mahabharata 4.47.1

भीष्म उवाच · bhīṣma uvāca

कलांशास्तात युज्यन्ते मुहूर्ताश्च दिनानि चअर्धमासाश्च मासाश्च नक्षत्राणि ग्रहास्तथा

kalāṃśāstāta yujyante muhūrtāśca dināni caardhamāsāśca māsāśca nakṣatrāṇi grahāstathā

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