The Manvantaras & Dissolution of the Universe - Verse 219-220

Muhurtas and Lavas are determined (thus) by those who know the measure. ( Instead of the above) through water also time is measured. Thirteen Pal as of water make a Prastha according to the calculation current in Magadha. Four Prasthas of water make one Nalika Ghata (a jar with a tube fitted in) .