yadā vṛścikādiṣu pañcasu vartate tadāho-rātrāṇi viparyayāṇi bhavanti.
yadā—when; vṛścika-ādiṣu—headed by Vṛścika (Scorpio); pañcasu—five; vartate—remains; tadā—at that time; ahaḥ-rātrāṇi—the days and nights; viparyayāṇi—the opposite (the duration of the day decreases, and that of night increases); bhavanti—are.
When the sun passes through the five signs beginning with Vṛścika [Scorpio], the duration of the days decreases [until Capricorn], and then gradually it increases month after month, until day and night become equal [in Aries].

Link to this page: https://prabhupadabooks.com/sb/5/21/5

Previous: SB 5.21.4     Next: SB 5.21.6

If you Love Me Distribute My Books -- Srila Prabhupada