Chronometry

Description of time from Atom to the life of Lord Brahma

Paramanu (Atom) -->Ultimate indivisible particle of material manifestation

Param Mahan -->Unmanifest aggregate of Atoms (Complete Manifestation)

Atomic Time -->Time required for the sun to pass an Atom or time taken to pierce a lotus through a needle

Greater Time (Brahma's life) -->Time required to cover the unmanifest aggregate of Atoms

Trasarenu --> Two paramaanus make an anu. Three anus make a trasarenu, which is perceived by the eye, since if follow the air currents in the rays of the sun entering the window lattice.

One Truti --> The time it takes for the sun to pass over three trasa-renus (3 hexatomes) = 8/13,500 sec

Cosmic Time	Divisions of Time	Human Time
1 month	2 fortnights (white & black)	1 night and day of Pita planets
1 Season	2 months	One sixth of a year
1 movement of sun from south to north or north to south	1 day or night of the demigods	6 months (uttarayana & daksinayana)
1 calender year	1 day and night of the demigods	2 solar movements (uttarayana & daksinayana)
Duration of human life	100 days of demigods	100 human years
1 year of demigods	360 days of demigods	360 human years
1 Satya Yuga	4,800 demigod years	1,728,000 human years
1 Treta Yuga	3,600 demigod years	1,296,000 human years
1 Dvapara Yuga	2,400 demigod years	864,000 human years
1 Kali Yuga	1,200 demigod years	432,000 human years
1 Divya Yuga (S+T+D+K)	12,000 demigod years	4,320,000 human years
1 Day or Night of Brahma	14 Manus & Demigods	1000 Divya Yugas