anytime vs at all times

anytime

adv

  • At any time 

intj

  • "you're welcome" in response to "thank you" or "thanks." 

adj

  • Suitable for any time; not associated with any particular time. 

at all times

adv

  • always. 

How often have the words anytime and at all times occurred in a corpus of books? (source: Google Ngram Viewer )