Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 6 · Calendar, Muhurta Elements
कालमानं मुहूर्ताङ्गानि च
कृष्णः सौरिः स्ववारेषु स्वस्ववर्णक्रिया हिताः ।अद्रिवाणाश्च यस्तर्कपातालवसुधाधराः ॥ १६३ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 163.
Saturn is black. On each planet's own weekday, work in its own colour is good. Then come the numbers, three for each weekday: seven, five, four; six, seven, seven.
Simple meaning: Saturn is black. Work in a planet's colour suits its own day. Bad-time numbers for Sunday and Monday follow.
बाणाग्निलोचनानिह्यवेदबाहुशिलीमुखाः ।
These numbers mark the bad parts of the day for Tuesday to Saturday.
कुलिकाश्चोपकुलिका वारवेलास्तथा क्रमात् ।
The numbers above give three kinds of bad time, each an hour and a half, from Sunday on.
यस्मिन्वारे क्षणो वारदृष्टस्तद्वासराधिपः ।
The day's first hour belongs to the weekday lord. Each next hour goes to the sixth planet on.