Kāla-vibhāga: The Divisions of Time from Atom to Brahmā, and the Lord Beyond Time
त्रिलोक्या युगसाहस्रं बहिराब्रह्मणो दिनम् । तावत्येव निशा तात यन्निमीलति विश्वसृक् ॥ २२ ॥
tri-lokyā yuga-sāhasraṁ bahir ābrahmaṇo dinam tāvaty eva niśā tāta yan nimīlati viśva-sṛk
త్రిలోకాలు (స్వర్గ, మర్త్య, పాతాళ)కు వెలుపల బ్రహ్మలోకంలో నాలుగు యుగాల వెయ్యిరెట్లు బ్రహ్మదేవుని ఒక దినము. అంతే కాలము బ్రహ్మరాత్రి; ఆ వేళ విశ్వసృష్టికర్త నిద్రలో నిమీలిస్తాడు.
When Brahmā goes to sleep in his nighttime, the three planetary systems below Brahmaloka are all submerged in the water of devastation. In his sleeping condition, Brahmā dreams about the Garbhodakaśāyī Viṣṇu and takes instruction from the Lord for the rehabilitation of the devastated area of space.
This verse states that one day of Brahmā equals one thousand cycles of the four yugas (catur-yuga), and his night is of the same duration, occurring when Brahmā sleeps.
In this section (Canto 3, Chapter 11), Shukadeva describes cosmic time to help Parikshit understand the vast scale of creation and dissolution under the Supreme Lord’s arrangement.
Reflecting on the immense scale of cosmic time helps cultivate humility, detachment from temporary pursuits, and urgency to engage in bhakti—devotional service—while human life lasts.