रात्रिं युगसहस्रान्तां तेऽहोरात्रविदो जनाः।।8.17।।
8.17. Those who know the day of Brahma as compassing one thousand yugas (world-ages), and night [also] as compassing one thousand yugas-those men know the day and night of Brahma.
8.17 See Comment under 8.19
Sahasrayugaparyantam aharyad brahmano viduh; Raatrim yugasahasraantaam te’horaatravido janaah.
sahasra—one thousand; yuga—age; paryantam—until; ahaḥ—one day; yat—which; brahmaṇaḥ—of Brahma; viduḥ—know; rātrim—night; yuga-sahasra-antām—lasts one thousand yugas; te—they; ahaḥ-rātra-vidaḥ—those who know his day and night; janāḥ—people