ŚB 5.22.5

अथ स एष आत्मा लोकानां द्यावापृथिव्योरन्तरेण नभोवलयस्य कालचक्रगतो द्वादश मासान् भुङ्क्ते राशिसंज्ञान् संवत्सरावयवान्मास: पक्षद्वयं दिवा नक्तं चेति सपादर्क्षद्वयमुपदिशन्ति यावता षष्ठमंशं भुञ्जीत स वै ऋतुरित्युपदिश्यते संवत्सरावयव: ॥ ५ ॥
atha sa eṣa ātmā lokānāṁ dyāv-āpṛthivyor antareṇa nabho-valayasya kālacakra-gato dvādaśa māsān bhuṅkte rāśi-saṁjñān saṁvatsarāvayavān māsaḥ pakṣa-dvayaṁ divā naktaṁ ceti sapādarkṣa-dvayam upadiśanti yāvatā ṣaṣṭham aṁśaṁ bhuñjīta sa vai ṛtur ity upadiśyate saṁvatsarāvayavaḥ.

Synonyms

athatherefore; saḥHe; eṣaḥthis; ātmāthe living force; lokānāmof all the three worlds; dyāv-ā-pṛthivyoḥ antareṇabetween the upper and lower portions of the universe; nabhaḥ-valayasyaof outer space; kāla-cakra-gataḥpositioned in the wheel of time; dvādaśa māsāntwelve months; bhuṅktepasses; rāśi-saṁjñānnamed after the zodiac signs; saṁvatsara-avayavānthe parts of the whole year; māsaḥone month; pakṣa-dvayamtwo fortnights; divāa day; naktam caand a night; itithus; sapāda-ṛkṣa-dvayamby stellar calculations, two and a quarter constellations; upadiśantithey instruct; yāvatāby as much time; ṣaṣṭham aṁśamone sixth of his orbit; bhuñjītapass; saḥthat portion; vaiindeed; ṛtuḥa season; itithus; upadiśyateis instructed; saṁvatsara-avayavaḥa part of a year.

Translation

The sun-god, who is Nārāyaṇa, or Viṣṇu, the soul of all the worlds, is situated in outer space between the upper and lower portions of the universe. Passing through twelve months on the wheel of time, the sun comes in touch with twelve different signs of the zodiac and assumes twelve different names according to those signs. The aggregate of those twelve months is called a saṁvatsara, or an entire year. According to lunar calculations, two fortnights — one of the waxing moon and the other of the waning — form one month. That same period is one day and night for the planet Pitṛloka. According to stellar calculations, a month equals two and one quarter constellations. When the sun travels for two months, a season passes, and therefore the seasonal changes are considered parts of the body of the year.