चत्वारि त्रीणि द्वे चैकं कृतादिषु यथाक्रमम् ।
सङ्ख्यातानि सहस्राणि द्विगुणानि शतानि च ॥१९॥
Text
catvāri trīṇi dve caikaṁ
kṛtādiṣu yathā-kramam
saṅkhyātāni sahasrāṇi
dvi-guṇāni śatāni ca
Synonyms
catvāri—four; trīṇi—three; dve—two; ca—also; ekam—one; krta-ādiṣu—in the Satya-yuga; yathā-kramam—and subsequently others; saṅkhyātāni—numbering; sahasrāṇi—thousands; dvi-guṇāni—twice; śatāni—hundreds; ca—also. ¶
Translation
The duration of the Satya millennium equals 4,800 years of the years of the demigods; the duration of the Treta millennium equals 3600 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 x 360, or 1,728,000 years. The duration of the Tretā-yuga is 3,600 x 360, or 1,296,000 years. The duration of the Dvāpara-yuga is 2,400 x 360, or 864,000 years. And the last, the Kali-yuga, is 1,200 x 360, or 432,000 years. ¶