A macro time-unit equivalent to innumerable years, which is equivalent to 10 koṭi-koṭi (= 1014)
Addhā Sāgaropamas;
the ascending half of the Kāla-cakra (time-cycle), during which, the biological factors like lifespan, structure of body etc. of the humans and sub-humans living in the Samayakṣetra undergo a gradual evolution.
'egā ussappiṇī'...utsarpati- utsarppati-varddhate' rakāpekṣayā utsarppati vā bhāvānāyuṣkādīn varddhayatīti utsarpiṇī.
(Sthā 1.134 Vṛ Pa 25)
dasa sāgarovama koḍākodī kālo ussappiṇī.
(Bhaga 6.134)