Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 6 · Calendar, Muhurta Elements
कालमानं मुहूर्ताङ्गानि च
पितरश्च ततो विश्वे शशींद्राग्न्यश्विनो भगः ।तथा युगस्य वर्षेशास्त्वग्निनेंदुविधीश्वराः ॥ १२३ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 123.
Then the ancestors, the Vishvedevas, the Moon, Indra and Agni together, the Ashvins and Bhaga. The year lords within a yuga (five-year cycle) are Agni, the Sun, the Moon, Brahma and Shiva.
Simple meaning: The last six cycle lords are named. The five years inside each cycle are ruled by Agni, Sun, Moon, Brahma and Shiva.
अथाद्वेशचमूनाथसस्यपानां बलाबलम् ।
Check the strength of the year's lord, army chief and crop lord, and the planets' movement. Then give the result.
सौम्यायनं मासषट्कं मृगाद्यं भानुभुक्तितः ।
The Sun's northward half-year starts at Capricorn and is the gods' day. The southward half starts at Cancer and is their night.
गृहप्रवेशवैवाहप्रतिष्ठामौंजिबंधनम् ।
House entry, marriage, installing a deity and the thread ceremony suit the Sun's northward half-year, from Magha.