cup of tea vs teatime

cup of tea

noun
  • Used other than figuratively or idiomatically: see cup, tea. A cup or mug with tea in it. 

  • three 

  • Whatever suits or interests one. 

teatime

noun
  • The traditional time, in the late afternoon, for serving tea (the meal). 

How often have the words cup of tea and teatime occurred in a corpus of books? (source: Google Ngram Viewer )