Śrīmad-Bhāgavatam 3.11.4
SB 3.11.4
Open the full passageSanskrit
sa kālaḥ paramāṇur vai yo bhuṅkte paramāṇutām sato 'viśeṣa-bhug yas tu sa kālaḥ paramo mahān
Translation
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.