svaá¹ svaá¹ kÄlaá¹ manur bhuá¹…kte
sÄdhikÄá¹ hy eka-saptatim
svam - own; svam - accordingly; kÄlam - duration of life; manuḥ - Manu; bhuá¹…kte - enjoys; sa-adhikÄm - a little more than; hi - certainly; eka-saptatim - seventy-one.
The duration of life of a Manu comprises seventy-one sets of four millenniums, as described in the Viṣṇu PurÄṇa. The duration of life of one Manu is about 852,000 years in the calculation of the demigods, or, in the calculation of human beings, 306,720,000 years.