SB 5.22.16
tata uparistad yojana-laksa-dvayat pratiyamanah sanaiscara ekaikasmin rasau trimsan masan
vilambamanah sarvan evanuparyeti tavadbhir anuvatsaraih prayena hi sarvesam asantikarah.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Situated 1,600,000 miles above Jupiter, or 12,000,000 miles above earth, is the planet Saturn, which passes through one sign of the zodiac in thirty months and covers the entire zodiac circle in thirty Anuvatsaras. This planet is always very inauspicious for the universal situation.