ŚB 3.11.19
Devanagari
चत्वारि त्रीणि द्वै चैकं कृतादिषु यथाक्रमम् ।
संख्यातानि सहस्राणि द्विगुणानि शतानि च ॥ १९ ॥
संख्यातानि सहस्राणि द्विगुणानि शतानि च ॥ १९ ॥
Verse text
catvāri trīṇi dve caikaṁ
kṛtādiṣu yathā-kramam
saṅkhyātāni sahasrāṇi
dvi-guṇāni śatāni ca
kṛtādiṣu yathā-kramam
saṅkhyātāni sahasrāṇi
dvi-guṇāni śatāni ca
Synonyms
Translation
The duration of the Satya millennium equals 4,800 years of the years of the demigods; the duration of the Tretā millennium equals 3,600 years of the demigods; the duration of the Dvāpara millennium equals 2,400 years; and that of the Kali millennium is 1,200 years of the demigods.
Purport
As aforementioned, one year of the demigods is equal to 360 years of the human beings. The duration of the Satya-yuga is therefore 4,800 × 360, or 1,728,000 years. The duration of the Tretā-yuga is 3,600 × 360, or 1,296,000 years. The duration of the Dvāpara-yuga is 2,400 × 360, or 864,000 years. And the last, the Kali-yuga, is 1,200 × 360, or 432,000 years.