Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 6 · Calendar, Muhurta Elements
कालमानं मुहूर्ताङ्गानि च
षष्ठः षष्ठश्चेतरेषां कालहोराधिपाः स्मृताः ।सार्द्धनाडीद्वयेनैव दिवा रात्रौ यथाक्रमात् ॥ १६७ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 167.
The sixth, and again the sixth, for the others: these are remembered as the lords of the kalahora (planet ruling the hour). Each lasts two and a half ghatikas (24-minute unit), by day and by night in order.
Simple meaning: Hour lords follow every sixth planet. Each rules one hour, by day and by night.
वारप्रोक्ते कर्मकार्ये तद्ग्रहस्य क्षणेऽपि सन् ।
Weekday work also does well in that planet's hour. Each star has its own god.
चंद्रेशादितिजीवाहिपितरो भगसंज्ञकः ।
This continues the list of gods who rule the stars, in order.
नैर्ऋत्युदकविश्वेजगोविंदवसुतोयपाः ।
This finishes the list of gods who rule the stars.