One verse

Srimad Bhagavatam 3.11.4

3.11.4

स काल: परमाणुर्वै यो भुङ्क्ते परमाणुताम् । सतोऽविशेषभुग्यस्तु स काल: परमो महान् ॥ ४ ॥

sa kalah paramanur vai yo bhunkte paramanutam sato ’visesa-bhug yas tu sa kalah paramo mahan

sah
that
kalah
eternal time
parama-anuh
atomic
vai
certainly
yah
which
bhunkte
passes through
parama-anutam
the space of an atom
satah
of the entire aggregate
avisesa-bhuk
passing through the nondual exhibition
yah tu
which
sah
that
kalah
time
paramah
the supreme
mahan
the great.

Atomic time is measured according to its covering a particular atomic space. That time which covers the unmanifest aggregate of atoms is called the great time.