Srimad Bhagavatam Canto 10, Chapter 16, Text 41

SB 10.16.41

kalaya kala-nabhaya
kalavayava-saksine
visvaya tad-upadrastre
tat-kartre visva-hetave
 
Translation: 
 
Obeisances unto You, who are time itself, the shelter of time and the witness of time in all its phases. You are the universe, and also its separate observer. You are its creator, and also the totality of all its causes.
 
Purport: 
 
The Supreme Personality of Godhead, although appearing in different incarnations, can never be limited by time, since He is time itself, the shelter of time, and the witness of time in all its phases.
 
Srimad Bhagavatam Canto 10, Chapter 16, Text 40
Srimad Bhagavatam Canto 10, Chapter 16, Text 42-43