Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 6 · Calendar, Muhurta Elements
कालमानं मुहूर्ताङ्गानि च
ब्रह्मदेवमनोर्मानं पित्र्यं सौरं च सावनम् ।चांद्रमार्क्षं गुरोर्मानमिति मानानि वै नव ॥ १०९ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 109.
There are nine measures of time. Those of Brahma, of the gods and of Manu. Those of the ancestors, the Sun, and the civil day. Those of the Moon, the stars and Jupiter.
Simple meaning: Time is counted in nine ways, such as by the Sun, the Moon, the stars and Jupiter.
एतेषां नवमानानां व्यवहारोऽत्र पञ्चभिः ।
Of the nine ways of counting time, only five are used in daily life.
ग्रहाणां निखिलश्चारो गृह्यते सौरमानतः ।
Planet movement is counted by the Sun, and rain and pregnancy by the civil day.
प्रवर्षणां समे गर्भौ नाक्षत्रेण प्रगृह्यते ।
Rain and the year are counted by the stars. Journeys, marriages, vows and shaving need the moon day and year lord.