yavan kalpo vikalpo va

yatha kalo ’numiyate

bhuta-bhavya-bhavac-chabda

ayur-manam ca yat satah

 

Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 

 

Also please explain the duration of time between creation and annihilation, and that of other subsidiary creations, as well as the nature of time, indicated by the sound of past, present and future. Also, please explain the duration and measurement of life of the different living beings known as the demigods, the human beings, etc., in different planets of the universe.

 

Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 

 

Past, present and future are different features of time to indicate the duration of life for the universe and all its paraphernalia, including the different living beings in different planets.